СПОСОБ И УСТАНОВКА ДЛЯ УДАЛЕНИЯ ОРГАНИЧЕСКОГО ВЕЩЕСТВА ИЗ ПОПУТНОЙ ВОДЫ НЕФТЕПРОМЫСЛА

Изобретение относится к удалению органических веществ из попутной воды нефтепромысла и может использоваться при разработке нефтяных месторождений. Способ включает введение попутной воды в контакт с адсорбентом, содержащим цеолит, адсорбцию и удаление растворенного органического вещества из попутной воды, десорбцию органического вещества из адсорбента и регенерацию адсорбента посредством нагрева. Система обработки содержит установку для введения дренажной воды, содержащей органическое соединение и натрий, в контакт с адсорбентом на основе системы неорганических соединений, и устройство управления, отслеживающее значение концентрации натрия в дренажной воде до контакта с адсорбентом и после контакта. Система содержит резервуар для разделения нефти и воды, средство электролиза, резервуар для сепарации органического вещества, резервуар для адсорбции, камеру сгорания смеси органических соединений. Технический результат состоит в повышении эффективности разделения. 5 н. и 29 з.п. ф-лы, 9 ил., ...

СПОСОБЫ ПОЛУЧЕНИЯ УГЛЕВОДОРОДНЫХ КОМПОЗИЦИЙ С ПОНИЖЕННЫМ КИСЛОТНЫМ ЧИСЛОМ И ДЛЯ ВЫДЕЛЕНИЯ КОРОТКОЦЕПОЧЕЧНЫХ ЖИРНЫХ КИСЛОТ

Изобретение относится к способу получения углеводородов из источника жирных кислот, включающему (a)нагревание источника жирных кислот с получением первой композиции, содержащей углеводороды и по меньшей мере одну свободную короткоцепочечную жирную кислоту; и (b)отделение по меньшей мере одной свободной короткоцепочечной жирной кислоты из первой композиции посредством процесса адсорбции или процесса ионного обмена. Описанные здесь способы обеспечивают эффективный способ удаления и выделения короткоцепочечных жирных кислот из углеводородов, которые образуются при нагревании источника жирных кислот. Короткоцепочечные жирные кислоты могут непрерывно выделяться и подаваться в реактор пиролиза, что, в свою очередь, повышает общую эффективность получения углеводородов. В качестве альтернативы, короткоцепочечные жирные кислоты могут быть выделены и использованы в других применениях. 27 з.п. ф-лы, 2 табл., 5 ил.

СПОСОБ ПОДГОТОВКИ ОТРАБОТАННОГО ГАЗА РЕГЕНЕРАЦИИ

Изобретение относится к способу подготовки отработанного газа регенерации и может быть использовано в газоперерабатывающей промышленности. Способ подготовки отработанного газа регенерации 4 включает осушку отработанного газа 4, подачу его в поток сухого отбензиненного газа 15 с процесса низкотемпературной переработки с последующим дожатием и подачей подготовленного газа 17 в магистральный газопровод. Осушку отработанного газа регенерации 4 осуществляют путем охлаждения с последующей сепарацией полученной газожидкостной смеси 10 с отводом подготовленного отработанного газа регенерации 13 и жидкой фазы 14. Охлаждение отработанного газа регенерации 4 осуществляют газообразным пропаном 7, подаваемым после утилизации холода в процессе низкотемпературной переработки газа, или жидким пропаном 8, подаваемым из системы пропанового охлаждения и сдросселированным до газообразного состояния. Обеспечивается увеличение выхода товарной продукции с газоперерабатывающего производства за счет подготовки ...

СПОСОБ ОЧИСТКИ СМОЛ

Предусматривается способ очистки совокупности гранул смолы, при этом способ предусматривает приведение совокупности гранул смолы в контакт с водным раствором, где водный раствор содержит одно или несколько растворенных аминосоединений, а совокупность гранул смолы содержит полимер, который содержит присоединенные группы, представляющие собой остатки карбоновой кислоты, или группы, представляющие собой остатки сульфоновой кислоты, или их смесь. 6 з.п. ф-лы, 3 табл.

Regeneration of a polymeric adsorbent - by contacting with a supercritical fluid to remove the adsorbate by dissolution

Parent patent describes the removal of organic impurities from water using an adsorbent and sepg. the adsorbate from the adsorbent by bringing the adsorbent contg. adsorbate into contact with a supercritical fluid which is a solvent for the adsorbate, so that the latter is dissolved and removed from the adsorbent. In this addition (a) a polymeric adsorbent (PA) is contacted with a stream of water contg. the organic material (OM) so that the OM is adsorbed by the PA; (b) the PA contg. OM is contacted with a supercritical fluid so that the OM dissolves in the supercritical fluid; (c) the supercritical fluid contg. OM is sepd. from the adsorbent; (d) the supercritical fluid is transformed by a physical treatment into a non-solvent for the OM and a 2-phase system is formed; (e) the non-solvent supercritical fluid phase is sepd. from the OM phase; and (f) the supercritical fluid is reconverted into a solvent for the OM by a physical method. Used to remove impurities e.g. pesticides, insecticides ...

Treatment of liquid with oily contaminants

Absorption of volatile organic compounds derived from organic matter.

Absorption of volatile organic compounds derived from organic matter.

Absorption of volatile organic compounds derived from organic matter.

VERFAHREN ZUR GEWINNUNG VON SO2-REICHGASEN UND EINRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

PROCEDURE FOR THE EXTENSION OF THE SERVICE LIFE OF ELECTROLYTIC SOLUTIONS BY ELIMINATION OF ORGANIC BREAKDOWN MATERIALS

Carbon dioxide absorbent and method for producing same, and carbon dioxide separation system

A method for producing a carbon dioxide absorbent includes the steps of: kneading hydrophilic fibers, a porous powder and an aqueous dispersion of a hydrophilic binder together, then granulating the resultant product, and then drying the granulated product to produce porous particles in which the hydrophilic fibers and the porous powder are compounded with each other through the hydrophilic binder; and preparing an aqueous amine solution that contains an amine compound at a concentration of 5 to 70% inclusive and has a temperature of 10 to 100°C inclusive, then impregnating the porous particles with the aqueous amine solution, and then through-circulation-drying the resultant porous particles each having the amine compound carried thereon. A carbon dioxide absorbent is so configured that an amine compound is carried on porous particles each prepared by compounding hydrophilic fibers with a porous powder through a hydrophilic binder.

GAS ADSORBENT BODY, METHOD FOR PRODUCING THEREOF, AND CARBON DIOXIDE GAS CONCENTRATION DEVICE

... [Problem] The purpose of the present invention is to provide a gas adsorbent that has the capacity to recover carbon dioxide gas at a high yield by the thermal swing method and concentrate the gas to a high level, that has high durability and relatively low pressure loss, that can be reduced in size, and that can be produced at a relatively reduced cost, and a carbon dioxide concentration device. [Solution] The present invention relates to a laminate adsorbent comprising a particle-like adsorbent material adhesive sheet and a carbon dioxide gas recovery/concentration device using the adsorbent. The carbon dioxide gas recovery/concentration device can solve the drawbacks of filled layers of fixed bed, moving bed and fluidized bed types and the high cost of a honeycomb rotor type while simultaneously having the characteristics of these types. Additionally, this device adsorbs carbon dioxide gas in a state where the adsorbent is wet, thereby remarkably enhancing adsorption capacity due to ...

TREATMENT OF CONTAMINATED LIQUIDS

Apparatus and method for the treatment of a contaminated liquid to remove contaminants from said liquid. The apparatus comprises a bed of a carbon based adsorbent material capable of electrochemical regeneration, at least one pair of electrodes operable to pass an electric current through said bed to regenerate the adsorbent material, and means to admit contaminated liquid into said bed to contact said adsorbent material at a flow rate which is sufficiently high to pass the liquid through the bed but below the flow rate required to fluidise the bed of adsorbent material.

활성탄의 재생 방법 및 이를 이용한 장치

... 본 발명은 활성탄의 재생 방법 및 이를 이용한 장치에 관한 것으로, 보다 상세하게는 수처리에 사용되는 활성탄의 열재생 공정에 있어서, 재생로에 장입하기 전 폐활성탄을 전기전도도가 200uS/cm 이하인 물로 수세하는 세정 단계를 포함하는 활성탄의 재생 방법; 및 수처리에 사용되는 활성탄의 열재생 장치에 있어서, 수처리에 사용된 폐활성탄을 저장하는 폐활성탄 저장 호퍼, 폐활성탄을 열재생하는 재생로, 공정수에 의해 폐활성탄을 상기 폐활성탄 저장 호퍼로부터 상기 재생로로 이송하는 이송 라인, 상기 이송 라인 말단에 구비되어 재생로에 장입하기 전 폐활성탄을 전기전도도가 200uS/cm 이하인 물로 수세하는 세정부 및 상기 세정부에 구비되어 물의 전기전도도를 측정하는 전기전도도 측정 장치를 포함하는 활성탄의 재생 장치에 관한 것이다.

APPARATUS FOR REMOVING NITROGEN OXIDES AND METHOD FOR REMOVING NITROGEN OXIDES

CONTINUOUS REGENERABLE ADSORBENT AND METHOD OF PRODUCING SAME

The present invention relates to an adsorbent for removing malodors and volatile organic compounds, and a method of producing the same, and more specifically, to a continuous regenerable adsorbent capable of maintaining adsorption capacity over continuous regeneration; and to a method of producing the same. According to the present invention, when adsorbing malodors and volatile organic compounds, an activated carbon support containing multiple pores induces diffusion of the corresponding gas molecules. Further, a boehmite catalyst coated on the surface of the activated carbon support forms an ionic (or covalent) bond with the corresponding gas molecules, wherein the ionic (or covalent) bond formed by the boehmite catalyst has an adsorption strength which is stronger than physical adsorption, yet weaker than chemical adsorption, such that the adsorbed gas molecules are easily detached during the adsorbent regeneration process. Furthermore, the surface of the adsorbent after the regeneration ...

SYSTEM FOR REGENERATING AMMONIA BORANE BY USING SUPERCRITICAL FLUID

The present invention relates to a system for simply regenerating ammonia borane from ammonia borane (polyborazylene) dehydrogenated after being used, by means of a process using a supercritical fluid. Compared to a conventional system, a process system of the present invention is simple, so ammonia borane may be mass-produced. Regeneration yield is excellent, so high price ammonia borane may be usefully recycled. Accordingly, the system may be useful in the fields of hydrogen gas storing materials and fuel cells. The system comprises: an ammonia borane regenerating reactor having a magnetic agitator; a used ammonia borane and solvent feeding unit connected with the regenerating reactor through a used ammonia borane and solvent feeding line; a liquefied supercritical fluid tank connected with the regenerating reactor through a liquefied supercritical fluid feeding line; a supercritical fluid raw ingredient feeding unit connected with the liquefied supercritical fluid tank through a supercritical ...

REMOVAL OF KRYPTON AND XENON IMPURITIES FROM ARGON BY MOF ADSORBENT

Disclosed is a system and method for removing trace levels of krypton and xenon from argon by using metal organic framework (MOF) adsorbents.

USE OF N-VINYL POLYMERS AS SORBENTS AND METHOD FOR THE REGENERATION OF THE SORBENTS

The invention relates to a method for the removal of ions from industrial waste water by treatment with a water insoluble polymer based on basic N-vinyl lactam as a sorbent.

PROCESSES USING FLUIDIZED SOLIDS AND APPARATUS FOR CARRYING OUT SUCH PROCESSES

Apparatus and processes are disclosed for carrying out chemical reactions of the type in which a fluidized particulate solid is contacted with reactants in a reaction vessel (10) and then separated from the reactant products and regenerated in a regenerator (12). The regenerator into an uppermost bed, an intermediate horizontal occlusion zone bed, and a lowermost bed. The intermediate occlusion zone inhibits backmixing of the fluidized particles, permitting temperature differences to be maintained between the upper and lower beds.

REGENERATION OF CARBON

A process and apparatus for regenerating granules of carbon used in the recovery of gold from ores by cyanidation treatment. The process comprises heating the granules in a kiln by means of microwave energy to a temperature sufficient to regenerate the carbon. The apparatus comprises (i) a kiln (3) having an inlet end (9) and an outlet end (11) for receiving therethrough granules of carbon, the kiln being rotatable about an inclined axis, and (ii) a source (13) of microwave energy coupled to the kiln (3) by means of a waveguide (15) operable to direct microwave energy into the kiln.

CARBON DIOXIDE ADSORBENT AND METHOD FOR MANUFACTURING SAME, AS WELL AS CARBON DIOXIDE SEPARATION SYSTEM

A method for manufacturing a carbon dioxide adsorbent includes: forming a kneaded product containing a hydrophilic fiber, a powdery porous material, and an aqueous hydrophilic binder dispersion into particles and drying the particles to generate porous material particles containing the hydrophilic fiber and the powdery porous material combined by the hydrophilic binder; and preparing an aqueous amine solution having an amine concentration of 5% or more and 70% or less and a temperature of 10° C. or higher and 100° C. or lower, impregnating the aqueous amine solution into the porous material particles, and aeration-drying the porous material particles impregnating the amine. The carbon dioxide adsorbent contains the porous material particles and the amine carried by the porous material particles, the porous material particles containing the hydrophilic fiber and the powdery porous material combined by the hydrophilic binder.

PROCESS FOR TREATMENT OF A FLUID

A process for treating a fluid comprising at least one chemical contaminant. The process comprises the steps of: (i) contacting the fluid with a particulate adsorbent material; (ii) allowing the adsorbent material to adsorb the chemical contaminant to produce a substantially purified fluid and a contaminant-carrying adsorbent material; (iii) separating the contaminant-carrying adsorbent material from the substantially purified fluid; (iv) contacting the contaminant-carrying adsorbent material with an aqueous slurry of a photocatalytic metal oxide powder in the presence of an electron acceptor and electromagnetic radiation in at least one of ultraviolet and visible regions; (v) allowing the contaminant to decompose to form a product which dissociates from the contaminant-carrying adsorbent to provide a regenerated adsorbent material, the aqueous slurry and the product; (vi) separating and recycling the regenerated adsorbent material to step (i); and (vii) recycling the aqueous slurry to ...

環境汚染物質の処理方法

... 粒子状吸着材に吸着された環境汚染物質の処理方法によって、二次環境汚染を極力抑制する。環境汚染物質を吸着した吸着材が流動床リアクタに通される。その流動床リアクタには高温ガスが貫流され、環境汚染物質の昇温離脱を行う。吸着材から脱着された環境汚染物質は、高温ガスと共に環境汚染物質の濃度を増したリッチガスを形成し、吸着材が通過する流動床リアクタに再循環される。そして、環境汚染物質の回収またはさらなる処理のために、リッチガスの一部は循環回路から分岐される。 ...

СОРБЕНТ, СОДЕРЖАЩИЙ МИКРОПОРИСТЫЙ МАТЕРИАЛ, И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Группа изобретений относится к микропористыым сорбентам на основе хитозана. Предложен сорбент, содержащий хитозан, сшитый глутаровым альдегидом в присутствии катализатора-кислоты. Концентрация глутарового альдегида составляет от примерно 2 до примерно 4 вес. %. Сорбент после сшивания окислен, по меньшей мере частично, окислителем, представляющим собой хлорит, в концентрации от 1 мМ до 10 мМ. Предложен также способ получения сорбента и его использования. Изобретение обеспечивает повышение селективности сорбента к Mo(VI) относительно Tc(VII). Сорбент является устойчивым к деградации под воздействием бета- и гамма-излучения и под воздействием кислот. 5 н. и 12 з.п. ф-лы, 24 ил., 12 табл., 10 пр.

Способ регенерации диатомитового сорбента

Изобретение относится к технологии регенерации диатомитового сорбента и может использоваться в химической, пищевой и строительной промышленности. Способ заключается в том, что влажную массу, которая содержит отработанный сорбент, воду и органические продукты пищевой промышленности подвергают термической обработке. Причем обработку проводят в токе воздуха с объёмной скоростью 0,5 м3/час при атмосферном давлении при нагреве до 120 °C и выдерживании в течение 4 ч, далее массу нагревают в режиме линейного нагрева со скоростью нагрева 5 °/мин до 200-600 °C и выдерживают при этой температуре в течение 3 ч. Техническим результатом заявленного изобретения является повышение эффективности регенерации сорбента и снижение энергетических затрат. 3 ил., 1 табл., 5 пр.

СПОСОБ ПОЛУЧЕНИЯ СОРБЕНТА ДЛЯ ОЧИСТКИ ОТХОДЯЩИХ ГАЗОВ

Изобретение относится к способу получения сорбента для очистки отходящих газов, характеризующемуся тем, что в качестве исходного сырья используют отход производства известкового молока, который классифицируют с выделением пастообразной массы, содержащей твердые частицы с размером менее 5 мкм, с последующей промывкой пастообразной массы в противотоке ацетоном при соотношении 1:1 по массе, температуре 50-70°С в течение 1-3 мин, промытую массу подвергают ультрафильтрации с выделением пермеата, содержащего частицы микрокристаллического гидроксида кальция с размером менее 50 нм, с последующей его сушкой воздухом при температуре 110-130°С. 1 з.п. ф-лы, 2 табл., 1 пр.

Способ подготовки углеродного сорбционного наноматериала из биоугля электромагнитным методом

Изобретение относится к области сорбционной химии. Предложен способ подготовки углеродного сорбционного наноматериала из биоугля электромагнитным методом, включающий получение исходного биоугля из рисовой шелухи путем карбонизации исходной рисовой шелухи в муфельной печи при температуре 600°С в течение 30 минут с предварительной промывкой, обработку полученного исходного биоугля из рисовой шелухи в аппарате активации процессов для обработки материалов, согласно которой навеска полученного исходного биоугля из рисовой шелухи размешивалась в дистиллированной воде и подвергалась воздействию во вращающемся электромагнитном поле с ферромагнитными частицами m=200 г в течение 30 секунд в аппарате активации процессов для обработки материалов, после чего просушивалась в сушильном шкафу в течение 4 часов при t=105°С. Технический результат - получение эффективного сорбента способом подготовки углеродного сорбционного наноматериала из биоугля электромагнитным методом с его последующим применением для ...

Способ регенерации адсорбентов при переработке природного газа

Изобретение относится к технологии регенерации адсорбентов при переработке природного газа. Изобретение касается способа регенерации адсорбентов при переработке природного газа, включает стадии нагрева адсорбента с десорбцией адсорбата и охлаждения адсорбента потоками регенерирующего и охлаждающего инертного газа. В качестве регенерирующего и охлаждающего инертного газа используют сухой азот, имеющий точку росы по воде не выше, чем требуемая точка росы по воде потока, очищенного на адсорбенте. Сухой азот последовательно проходит через слой охлаждаемого адсорбента на стадии охлаждения адсорбента, нагревается до температуры регенерации в рекуперативном теплообменнике и дополнительном нагревательном аппарате, пропускается через слой нагреваемого адсорбента на стадии нагрева адсорбента с десорбцией адсорбата, далее отработанный газ регенерации поступает совместно с десорбатом в виде азото-десорбатной смеси нестационарного состава в рекуперативный теплообменник для нагрева сухого азота, охлаждается ...

ПРОЦЕСС КРИОГЕННОЙ АДСОРБЦИИ ДЛЯ ИЗВЛЕЧЕНИЯ КСЕНОНА

Изобретение относится к процессу адсорбции для извлечения ксенона из потока криогенной жидкости или газа, в котором слой адсорбента вводят в контакт с ксенонсодержащим потоком жидкости или газа. Способ включает: i) подачу потока подачи при криогенных температурах на вход адсорбционного резервуара, причем указанный слой адсорбента содержит адсорбент, селективный к ксенону; ii) выдерживание указанного слоя адсорбента в потоке до получения концентрации ксенона на выходе указанного слоя, равной 70% от концентрации ксенона на входе в указанный слой адсорбента или выше; iii) завершение подачи в адсорбирующий слой и продувку продувочным газом; iv) повышение температуры указанного слоя адсорбента до температуры, обеспечивающей десорбцию всего указанного ксенона; v) извлечение продукта ксенона, десорбированного из указанного слоя адсорбента; vi) охлаждение указанного слоя адсорбента до криогенных температур с помощью криогенной жидкости и повторение стадий i)-vi) циклическим образом. При этом указанный ...

УСТАНОВКА ДЛЯ РЕКУПЕРАЦИИ ГАЛОГЕНИЗИРОВАННЫХ УГЛЕВОДОРОДОВ

... 1. Установка для рекуперации галогенированных углеводородов, с:десорбционным резервуаром (2), который принимает систему сорбат-сорбент, которая содержит галогенированные углеводороды,парогенератором (1), который выполнен для создания водяного пара из подведенной к парогенератору (1) воды и для введения созданного водяного пара в десорбционный резервуар (2) таким образом, что галогенированные углеводороды десорбируются из системы сорбат-сорбент и поглощаются водяным паром,охлаждающим устройством (3), которое выполнено для охлаждения смешанного с галогенированными углеводородами водяного пара таким образом, что образуется конденсат, иприемным резервуаром (4), который принимает конденсат.2. Установка по п. 1, имеющая также устройство (5) умягчения воды, которое расположено перед парогенератором (1) и которое выполнено для уменьшения степени жесткости подведенной воды.3. Установка по п. 1 или 2, имеющая также очистное устройство (6), которое расположено перед парогенератором (1) и которое выполнено ...

Process for the removal of contaminants

A process is described for the removal of a contaminantselected from a drying agent and a corrosion inhibitorfrom a sorbent selected from afiltration medium, a molecular sieve material, a porous oxide or a chemical sorbent,comprising the step of applying a carbon dioxide stream in which the carbon dioxide is present in the liquid phase orsupercriticalphase, to the contaminated sorbent in a sorbent vessel to remove the contaminant from the sorbent and form a contaminant-laden carbon dioxide stream and a decontaminated sorbent. Preferably the contaminant-laden carbon dioxide stream is recovered from the sorbent vessel and fedto a separation vessel in which the pressure is reduced to cause separation of the contaminant from a depressurised gaseous carbon dioxide. Adepressurised gaseous carbon dioxidestream and a separate contaminant streammay then be recovered from the separation vessel. The recovered depressurised carbon dioxide may be re-pressurised and fed back to the sorbent vessel. The ...

Calcium sorbent doping process

PROCEDURE FOR THE CLEANING OF WASHING WATER FROM THE PRODUCTION OF AROMATIC ACIDS

PROCEDURE FOR THE RECUPERATION OF REGENERATED ADSORBENT PARTICLES UNDER SEPARATION OF ASHES.

PROCEDURE FOR THE PRODUCTION OF SO2-REICHGASEN AND MECHANISM FOR THE EXECUTION OF THE PROCEDURE

Stable dispersions of metal passivation agents and methods for making them

CO2 recovery system and CO2 absorption liquid

Methods for producing hydrocarbon compositions with reduced acid number and for isolating short chain fatty acids

The methods described herein provide an efficient way to remove and isolate short chain fatty acids from hydrocarbons that are produced upon the heating of a fatty acid resource. The short chain fatty acids can be continuously isolated and fed into the pyrolysis reactor, which in turn increases the overall efficiency of the production of the hydrocarbons. Alternatively, the short chain fatty acids can be isolated and used in other applications.

CARBON DIOXIDE ADSORBENT AND METHOD FOR MANUFACTURING SAME, AS WELL AS CARBON DIOXIDE SEPARATION SYSTEM

A method for producing a carbon dioxide absorbent includes the steps of: kneading hydrophilic fibers, a porous powder and an aqueous dispersion of a hydrophilic binder together, then granulating the resultant product, and then drying the granulated product to produce porous particles in which the hydrophilic fibers and the porous powder are compounded with each other through the hydrophilic binder; and preparing an aqueous amine solution that contains an amine compound at a concentration of 5 to 70% inclusive and has a temperature of 10 to 100°C inclusive, then impregnating the porous particles with the aqueous amine solution, and then through-circulation-drying the resultant porous particles each having the amine compound carried thereon. A carbon dioxide absorbent is so configured that an amine compound is carried on porous particles each prepared by compounding hydrophilic fibers with a porous powder through a hydrophilic binder.

PREPARATION OF CHITOSAN-BASED MICROPOROUS COMPOSITE MATERIAL AND ITS APPLICATIONS

Microporous glutaraldehyde-crosslinked chitosan sorbents, methods of making and using them, and a generator for the radioisotope 99Mo containing the sorbents.

HUMIDITY CONTROL ELEMENT AND METHOD FOR USING SAME

Provided are: a humidity control element with which when the humidity control element is formed using MIL-101 (Cr) as moisture absorption material, the moisture absorption function of same can be kept high; and a method for using same. A plurality of flat plate members is stacked in such a manner that a first channel or a second channel is formed between each set of the flat plate members. Heat can be exchanged between the first channel and the second channel via the flat plate members. The flat plate member is formed from any one of the following materials: resin, paper, glass, metal, or ceramic. A porous organic metal framework MIL-101 (Cr) with chrome serving as the metal is held in one of the inner face of the first channel and the inner face of the second channel. A comparatively long time is provided for switching between dehumidification operation and regeneration operation.

CO2 RECOVERY SYSTEM AND CO2 ABSORPTION LIQUID

In an embodiment, a CO2 recovery system has an absorber, a regenerator, and a circulation device. An absorption liquid has an aqueous solution of amine having an alcohol group, and dimethyl silicone oil in which a part of methyl groups is substituted by at least one type selected from an aminoalkyl group, a carboxyl group, and a hydroxyl-containing alkyl group. The absorber contacts a combustion exhaust gas of a fossil fuel and the absorption liquid to absorb CO2, which is contained in the combustion exhaust gas, into the absorption liquid. The regenerator releases CO2 by applying thermal energy to the CO2-absorbed absorption liquid. A circulation device circulates the absorption liquid between the absorber and the regenerator.

PROCESS FOR THE TREATMENT OF LIQUID EFFLUENTS LADEN WITH HYDROCARBONS

La présente invention concerne Procédé de traitement d'effluents liquides chargés en hydrocarbures, consistant à : acheminer les effluents dans une cuve de traitement, alimenter la cuve de traitement avec un agent sorbant réversible présentant une granulométrie déterminée; mélanger les effluents avec l'agent sorbant réversible dans la cuve de traitement pour charger ledit agent sorbant réversible en hydrocarbures contenus dans les effluents; évacuer en partie supérieure de la cuve de traitement l'agent sorbant réversible chargé en hydrocarbures; extraire de la partie inférieure de la cuve de traitement les effluents traités, et séparer les hydrocarbures de l'agent sorbant réversible chargé provenant de la cuve de traitement.

PROCESS FOR REGENERATION OF SPENT ZIRCONIUM PHOSPHATE FOR REUSE IN SORBENT TREATMENTS

A method is provided for regenerating spent zirconium phosphate for reuse in sorbent dialysis treatments or other re-uses as a sorbent material. The method includes contacting spent zirconium phosphate with an aqueous disinfectant solution having at least one antimicrobial agent, and treating the resulting disinfected zirconium phosphate with an acidic solution to provide a treated zirconium phosphate that can be re-used as a sorbent material. Sorbent cartridge products containing the regenerated spent zirconium phosphate are also provided. Methods and systems for sorbent dialysis which re-use the regenerated zirconium phosphate such as part of sorbent cartridges, additionally are provided.

Stable dispersions of metal passivation agents and methods for making them

A process for passivating contaminating metal on a hydrocarbon cracking catalyst is provided. The catalyst is contacted within a hydrocarbon catalytic cracking unit with a stabilized dispersion. The dispersion comprises a fluid vehicle, a dispersion agent, and finely milled particles of one or more metals or metal compounds for passivation of metal-contaminated cracking catalysts. The dispersion is preferably produced by a process wherein an agitated media mill is loaded with comminuting media, fluid vehicle, dispersion agent and particles of a metal or metal compound for passivation of metal-contaminated cracking catalysts. The comminuting media, fluid vehicle, and particles are then agitated until the particles are reduced in size by at least 10% and have a volumetric average particle size of less than 0.5 microns.

Purifier for removing hydrogen fluoride from electrolytic solution

The present invention is a purification system for removing hydrogen fluoride and water from an electrolytic solution for lithium-ion secondary batteries in which [1] a purifier for removing hydrogen fluoride containing a hydrogen fluoride adsorbent selected from among carbonate hydrotalcites and calcined hydrotalcites and [2] a purifier for removing water containing an adsorbent for trapping water are connected in this order from upstream to downstream.

SEPARATION MEDIA SLURRY TANK

<SUP2/>? <SUB2/>?2?SOADSORPTION MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF, AND METHOD FOR REMOVING SO <NS1:SUB>2</NS1:SUB>?FROM FLUE GAS CONTAINING SO <NS2:SUB>2</NS2:SUB>

The present invention relates to the field of desulfurization, and disclosed are an SO2 adsorption material, a preparation method therefor and an application thereof, and a method for removing SO2 from flue gas containing SO2. The SO2 adsorption material contains a carbonized metal organic framework material and a sulfite loaded on the carbonized metal organic framework material, and the carbonized metal organic framework material is a carbonized material obtained by carbonizing a metal organic framework material; and on the basis of the total weight of the SO2 adsorption material, the loading amount of sulfite is not higher than 10 wt%. The SO2 adsorption material provided by the present invention has a relatively high SO2 adsorption capacity, and may be desorbed and regenerated by heating, and the adsorption capacity still remains at a relatively high level after multiple cycles of adsorption-desorption.

METHOD FOR REDUCING CARBON DIOXIDE IN LIVING SPACE, AND CARBON DIOXIDE ADSORBENT AND PRODUCTION METHOD THEREFOR

Provided is a method for efficiently reducing carbon dioxide in a living space. This method for efficiently reducing carbon dioxide in a living space includes: a step for causing carbon dioxide to be adsorbed to a carbon dioxide adsorbent by bringing the carbon dioxide adsorbent into contact with a gas including moisture and carbon dioxide in a living space; a step for separating carbon dioxide from the carbon dioxide adsorbent by heating the carbon dioxide adsorbent having adsorbed thereto carbon dioxide to 50-900°C; and a step for discharging the separated carbon dioxide to the outside of the living space. The carbon dioxide adsorbent contains: at least one alkali metal carbonate containing an alkali metal; and a metal compound containing at least one element selected from the group consisting of Group 3 elements in the periodic table and Group 4 elements in the periodic table.

УСТАНОВКА ДЛЯ РЕКУПЕРАЦИИ ГАЛОГЕНИРОВАННЫХ УГЛЕВОДОРОДОВ

Установка для рекуперации галогенированных углеводородов, с десорбционным резервуаром (2), который принимает систему сорбат-сорбент, которая содержит галогенированные углеводороды, парогенератором (1), который выполнен для создания водяного пара из подведенной к парогенератору (1) воды и для введения созданного водяного пара в десорбционный резервуар (2) таким образом, что галогенированные углеводороды десорбируются из системы сорбат-сорбент и поглощаются водяным паром, охлаждающим устройством (3), которое выполнено для охлаждения смешанного с галогенированными углеводородами водяного пара таким образом, что образуется конденсат, и приемным резервуаром (4), который принимает конденсат. 6 з.п. ф-лы, 2 ил.

Verfahren zur Verlängerung der Nutzungsdauer von Elektrolytlösungen durch Eliminierung organischer Störstoffe

Apparatus and method for aqueous organic waste treatment

PROCESS AND APPARATUS FOR REGENERATING POLYMERIC ADSORBENTS AND WASTEWATER TREATMENT EMBODYING THE SAME

Treatment of contaminated liquids

Recovery of alkyl chloride adsorbtion capacity by basic solution treatmetn of spent absorbent

STABLE DISPERSIONS FROM MEANS FOR METAL PASSIVATION AND METHODS TO YOUR PRODUCTION

Regeneration of ionic liquid catalyst using a metal in the absence of added hydrogen

A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at teas! one metal in a regeneration zone in the absence of added hydrogen under regeneration conditions for a time sufficient to increase the activity of the ionic liquid catalyst is described. In one embodiment, regeneration is conducted in the presence of a hydrocarbon solvent.

Regeneration of acidic catalysts

STRIPPING PROCESS AND APPARATUS

A baffle-style stripping arrangement for an FCC process having substantially horizontal stripping baffles is disclosed. The stripping baffles comprise a perforated section and an imperforate section which generates transverse movement of catalyst across the baffle to ensure adequate vertical movement of stripping media. The perforated section is covered with stripping openings to provide improved stripping efficiency and catalyst flux through the stripping vessel. The perforated section may comprise a grate. Baffles may also include a downcomer section which is vertically aligned with an imperforate section of a subjacent baffle.

PROCESS FOR REGENERATION OF SPENT ZIRCONIUM PHOSPHATE FOR REUSE IN SORBENT TREATMENTS

A method is provided for regenerating spent zirconium phosphate for reuse in sorbent dialysis treatments or other re-uses as a sorbent material. The method includes contacting spent zirconium phosphate with an aqueous disinfectant solution having at least one antimicrobial agent, and treating the resulting disinfected zirconium phosphate with an acidic solution to provide a treated zirconium phosphate that can be re-used as a sorbent material. Sorbent cartridge products containing the regenerated spent zirconium phosphate are also provided. Methods and systems for sorbent dialysis which re-use the regenerated zirconium phosphate such as part of sorbent cartridges, additionally are provided.

A MATERIAL COMPOUND AND A METHOD OF FABRICATING THE SAME

PLUGGAGE REMOVAL METHOD FOR SCR CATALYSTS AND SYSTEMS

The present disclosure relates to methods for treating an SCR catalyst or components of an SCR system having a decreased NOx potential efficiency as a result of particulate pluggage in the system or in one or more channels in the SCR catalyst which renders at least a portion of the catalytic active areas inaccessible for the flue gas. The methods include removal of the particulates and plug(s) using a blasting stream of a pressurized carrier gas having a particulate blasting medium directed at the SCR catalyst or component of an SCR system.

PLUGGAGE REMOVAL METHOD FOR SCR CATALYSTS AND SYSTEMS

The present disclosure relates to methods for treating an SCR catalyst or components of an SCR system having a decreased NOx potential efficiency as a result of particulate pluggage in the system or in one or more channels in the SCR catalyst which renders at least a portion of the catalytic active areas inaccessible for the flue gas. The methods include removal of the particulates and plug(s) using a blasting stream of a pressurized carrier gas having a particulate blasting medium directed at the SCR catalyst or component of an SCR system.

PROCESS FOR THE PURIFICATION OF GROUNDWATER

Groundwater is purified by a process in which solid constituents are first separated off, dissolved organic compounds are adsorbed to an adsorber resin, the adsorbed organic compounds are desorbed using steam and the adsorber resin is regenerated using an acid. The process makes it possible to separate aromatic and halogenated hydrocarbons off from heavily polluted groundwater to the extent that the groundwater can be added to flowing surface water without reservation. The purified water can, if appropriate, be used as cooling water or after further biological purification, also be used as drinking water.

PROCESS FOR THE TREATMENT OF AN AQUEOUS MIXTURE COMPRISING A DIPOLAR APROTIC COMPOUND

제논 회수를 위한 흡착 공정

... 극저온(cryogenic) 액체 또는 가스 스트림으로부터의 제논 회수를 위한 흡착 공정이 기재되며, 본 흡착 공정에서는 흡착제의 베드가 상기 언급된 제논 함유 액체 또는 가스 스트림과 접촉되고, 이 유체 스트림으로부터 선택적으로 제논을 흡착한다. 흡착 베드는 제논에 대해 적어도 거의 완전한 파과에 이를 때까지 작동되어, 온도 스윙(swing) 방법을 사용하여 재생하기 전에, 다른 스트림 성분들의 극도의 배제(deep rejection)를 가능하게 한다. 재생 전에 제논에 대해 거의 완전한 파과에 이를 때까지 흡착 베드를 작동시키면, 흡착 베드로부터 고순도 생성물의 생성을 가능하게 하고, 추가로, 탄화수소가 공급 스트림에 공존하는 경우에도, 산소가 퍼지 가스로서 안전하게 사용될 수 있게 한다.

oxidação a ar úmido a baixa temperatura

METHOD FOR REGENERATING A FILTER AID

The invention relates to a method for regenerating inorganic, natural and semisynthetic filter aids, said method being characterised in that the filter aid undergoes a first treatment with aqueous lye, a treatment with enzymes is carried out, a treatment with a surfactant is carried out, and a second treatment with aqueous lye is carried out. The invention also relates to a regenerated material providing the regenerated filter aid with a filter and/or washing resistance of of less than 10x1012mPa s/m2.

A process for the regeneration of an absorbent bed containing sulfur oxidated compounds

A process for the cyclical regeneration of an adsorbent bed (7) containing sulfur-oxidated compounds. The adsorbent bed is used to adsorb and separate sulfur-oxidated compounds from a hydrocarbonaceous stream (5) to produce an adsorbent having adsorbed sulfur-oxidated compounds.

METHOD FOR PRODUCING CONJUGATED DIENE POLYMER

METHOD USING ADSORBENT

An object of the present invention is to provide a novel method of recovering a metal and/or a metal ion from a liquid to be treated, by use of a monolith adsorbent, and a novel method of regenerating an adsorbent used in the method of recovering a metal and/or a metal ion from a liquid to be treated, and, in order to achieve the object, the present invention provides a method of recovering a metal and/or a metal ion, the method including the following steps of: (1) preparing for a solution containing a metal and/or a metal ion; (2) preparing for an adsorbent having a co-continuous structure formed by: a ceramic skeleton including mesopores; and macropores, wherein a surface of the ceramic skeleton is modified by a metal- and/or metal ion-adsorbable functional group, a most frequent pore diameter of the macropores before modification by the functional group is 0.20 µm or more and 4.0 µm or less, and a most frequent pore diameter of the mesopores before modification by the functional group ...

Снижение сил расширения, создаваемых материалами для хранения аммиака

Изобретение относится к хранению аммиака в твердом материале. Описан способ управления величиной механических сил, прикладываемых твердым материалом для хранения аммиака к стенкам контейнера, содержащего материал для хранения в своем внутреннем объеме, когда материал для хранения подвергают насыщению / повторному насыщению аммиаком внутри указанного контейнера для хранения, причем указанный способ включает:а. использование зависимости между i. температурой для процесса насыщения / повторного насыщения аммиаком в материале для хранения, далее T, а также плотностью материала для хранения аммиака, полностью насыщенного аммиаком, далее – D, и ii. гидравлическим давлением Рили эквивалентной механической силой F, создаваемыми материалом для хранения во время насыщения / повторного насыщения при указанной температуре Tи указанной плотности D, для определения минимальной температуры, далее – T, процесса насыщения / повторного насыщения, причем указанную зависимость получают с использованием процедуры ...

СПОСОБ РЕГЕНЕРАЦИИ ОТРАБОТАННОГО АКТИВНОГО УГЛЯ

Изобретение относится к процессам регенерации адсорбентов. Предложен способ регенерации отработанного активного угля. Способ включает обработку отработанного угля в потоке перегретого водяного пара во вращающейся печи при температуре 800-900°С, охлаждение и рассев. Предложено рассчитывать объем отработанного АУ, постоянно находящегося на термообработке в печи, с учётом первичной и остаточной адсорбционной активности угля и насыпной плотности исходного и отработанного угля. Техническим результатом изобретения является возможность регулирования объемной загрузки печи при проведении процесса регенерации с учётом коэффициента остаточной адсорбционной активности и коэффициента отработки механических характеристик угля. 1 табл., 15 пр.

Способ нетермической деаэрации воды

Изобретение относится к теплоэнергетике в области защиты теплообменного оборудования, котлов, трубопроводов и других металлических элементов на электростанциях, в котельных, на промышленных предприятиях при производстве пара, получении горячей воды для водопроводных сетей, получении обессоленной и умягченной воды для подпитки паровых котлов. Нетермическая деаэрация воды осуществляется фильтрованием воды, содержащей кислород, через фильтрующий материал с высокоразвитой разветвленной открытой пористой структурой. Фильтрующий материал регенерируют с использованием в качестве регенерационного раствора метабисульфита натрия. Отработанный регенерационный раствор разводят путем смешения с водой до уровня минерализации <1000 мг/дм3 и сбрасывают в канализацию. Изобретение обеспечивает удаление кислорода из воды при низких температурах. 2 з.п. ф-лы, 1 ил.

СПОСОБЫ ПОЛУЧЕНИЯ УГЛЕВОДОРОДНЫХ КОМПОЗИЦИЙ С ПОНИЖЕННЫМ КИСЛОТНЫМ ЧИСЛОМ И ДЛЯ ВЫДЕЛЕНИЯ КОРОТКОЦЕПОЧЕЧНЫХ ЖИРНЫХ КИСЛОТ

РЕГЕНЕРИРУЕМЫЙ ИОНООБМЕННЫЙ МАТЕРИАЛ ДЛЯ СНИЖЕНИЯ КОЛИЧЕСТВА CO

... 1. Способ снижения количества COв источнике, содержащем диоксид углерода, путем применения регенерируемого ионообменного материала, включающий в себя следующие стадии:a) предоставления по меньшей мере одного ионообменного материала, содержащего по меньшей мере один катион щелочноземельного металла,b) предоставления по меньшей мере одного источника, содержащего диоксид углерода,c) предоставления по меньшей мере одного источника по меньшей мере одного катиона, который способен замещать по меньшей мере один катион щелочноземельного металла по меньшей мере одного ионообменного материала,d) предоставления по меньшей мере одного источника по меньшей мере одного катиона щелочноземельного металла,e) приведения в контакт по меньшей мере одного ионообменного материала стадии а) с по меньшей мере одним источником по меньшей мере одного катиона стадии с) с тем, чтобы получить смесь, содержащуюi) по меньшей мере один ионообменный материал иii) по меньшей мере один катион щелочноземельного металла, высвобожденный ...

СОРБЕНТ, СОДЕРЖАЩИЙ МИКРОПОРИСТЫЙ МАТЕРИАЛ, И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Способ регенерации адсорбента

Изобретение относится к способу регенерации силикагеля. Регенерации подвергают силикагель, отработавший в процессе очистки дизельного топлива, насыщенного окисленными соединениями серы в виде сульфонов и сульфоксидов до их содержания 20 мг/кг. Согласно способу осуществляют промывку силикагеля, находящегося в адсорбере, водой при температуре 20-50°C, после чего производят осушку промытого силикагеля нагнетаемым в адсорбер азотом при температуре 180-195°C. Затем отводят азот, содержащий пары воды и следы остаточных углеводородов, из адсорбера в конденсатор с охлаждением его до 40-60°C. Охлажденный азот отводят в сепаратор для отделения жидкой фазы и дальнейшей его рециркуляции в адсорбер с обеспечением снижения температуры промытого и осушенного силикагеля до 30-40°C. Изобретение обеспечивает повышение безопасности процесса регенерации. 1 ил.

ОБРАБОТКА АКТИВИРОВАННЫМ УГЛЕМ

... 1. Способ очистки соединения, включающий обработку активированным углем с использованием блоков фильтров, содержащих активированный уголь, иммобилизованный в матрице, обработке, включающей а) пропускание подходящего объема исходного сырья, содержащего соединение, через первую серию из n связанных блоков фильтров, действующее последовательно, для получения фильтрата, где n равно, по крайней мере, двум, и где названным блокам фильтров были приписаны номера позиций от 1 до n последовательно и номер позиции 1 соответствует первому, в который подается сырье; b) отсоединение блока фильтров от первой последовательности блоков фильтров в любой позиции номер между n и до n-1 после прохождения подходящего объема сырья, и присоединение свежего блока фильтров в любую позицию, которая имеет больший номер, чем номер позиции отсоединенного блока фильтров, получая в результате следующую серию блоков фильтров; с) прохождение следующего подходящего объема сырья, содержащего соединение, через следующую серию ...

Treatment of liquid with oily contaminants

Adsorbents for treating contaminated liquids

Method for regenerating ion exchange material

A method of regenerating an ion exchange material, which can be a strong base anion (SBA) exchange resin, for an ion exchange bed. The method comprising the steps of: a) preparing a regenerant which comprises a salt solution preferably 7.4-12% w/v of sodium chloride or potassium chloride; b) modifying the regenerant by 1) increasing the pH, preferably to 9.1-9.3 by adding a metal hydroxide which can be an alkali metal hydroxide or an alkali earth metal hydroxide such as sodium hydroxide, lithium hydroxide, potassium hydroxide, magnesium hydroxide and or calcium hydroxide or a mixture thereof and/or 2) increasing the oxidation potential by adding an oxidising agent such as hydrogen peroxide, ozone or hypochlorite to promote conversion of trivalent chromium hydroxide to soluble hexavalent chromium ions; and c) passing the regenerant through the ion exchange bed to achieve the conversion and remove the hexavalent chromium ions from the ion exchange material. Preferably the salt solution has ...

Process for producing SO2-rich gases and apparatus for carrying out the process

In a process for producing SO2-rich gases and pure MgO from gases low in SO2, as are obtained, for example, in furnace units of a steam generator fired with brown coal, the gases low in SO2 are prepurified to remove fly ash and scrubbed in two stages by means of a slurried sorbent for SO2, where, in the first scrub, the gases low in SO2 are saturated with contaminated MgO at a pH of about 7 and the gaseous impurities which are soluble in the scrubbing water, for example halides, mainly chlorides and fluorides, are separated from the gases low in SO2. In the second stage, the gases are scrubbed by means of a sorbent suspension at a basic pH at which the sulphur oxides are bound and the sulphates are obtained as solution and the sulphites are obtained as solid. The solids are split by heating into SO2-rich gases and the purified sorbent which can be reused or can sometimes also be sold on as pure sorbent. ...

METHOD FOR REGENERATING ADSORBENT BY HEATING

SYSTEM AND METHOD FOR CALCINATION/CARBONATION CYCLE PROCESSING

A system and method for calcination/carbonation cycle processing. The system comprises a calciner reactor for receiving partially carbonated mineral sorbent granules; a heat exchange structure for transferring heat through a wall of the calciner reactor to a granular flow of the sorbent granules for facilitating a calcination reaction of the sorbent granules to regenerate the sorbent granules; a gas extraction unit for removing gas products from the calciner, wherein the gas products comprise carbon dioxide from the calcination reaction; a carbonator reactor for receiving the regenerated sorbent granules from the calciner reactor and for receiving a cold flue gas, such that the regenerated sorbent granules are partially carbonised while the flue gas is scrubbed and the partially carbonated sorbent granules and the scrubbed flue gas exit the carbonator reactor as respective hot materials; and a riser unit for cycling the partially carbonated sorbent granules from the carbo.pi.ator reactor ...

A PROCESS FOR CLEANSING WATER THAT CONTAINS ORGANIC SUBSTANCES

Conventional regenerative adsorption processes used to cleanse water of organic substances contained in it are of limited use if, because of a low content of organic substances contained in the water, the charge in the adsorber is so small that the condensed water-vapor desorbate does not form two phases, or if the organic components dissolve easily in water and are thus difficult to separate from the condensed desorbate after desorption has taken place. The process according to the present invention improves phase separation by feeding back the aqueous phase of the desorbate onto a charged adsorber before its desorption, in order to increase the charge; it also reduces the quantity of water vapor required for desorption by the application of additional external heating. Purification of industrial process water or ground water.

REGENERATION OF PERCHLOROETHYLENE

A method and apparatus for regenerating acidified perchloroethylene. The perchloroethylene may be passed into contact with an anionic exchange resin for removing substantially all of the acidified compounds, typical of which are fatty acids. A further treatment is disclosed for removing dyes and related compounds. The treatment involves passing the treated perchloroethylene through a sorbent resin for subsequent removal of the dye. The apparatus is simple and affords the regeneration of the perchloroethylene to a new quality for multiple uses after a deacidification. The result is a more environmentally friendly method of handling the perchloroethylene and there is a substantial reduction in the amount of wasted perchloroethylene which would otherwise have to be delicately handled due to environmental concerns.

ACTIVATED CARBON CARTRIDGE REGENERATION APPARATUS

The present invention relates to an activated carbon cartridge regeneration apparatus which is capable of efficiently regenerating activated carbon cartridge and having an improved structure to prevent the effluence of noxious gas to the outside. The activated carbon cartridge regeneration apparatus according to the present invention includes: a main body which has a diameter less than that of an upper plate of an activated carbon cartridge having a hollow portion at the center thereof to be communicated with through-holes formed on an inner circumferential surface of the activated carbon cartridge, and which has at least one mounting groove portion in which the activated carbon cartridge is inserted; and an exhaust passage which is communicated with the mounting groove portion to discharge gas containing pollutants having passed the inner circumferential surface and an outer circumferential surface of the activate carbon cartridge to the outside through a gas feeder, wherein the diameter ...

processos para regenerar uma fase estacionária cromatográfica

DESORPTION PROCESS AND APPARATUS

Described are preferred processes and apparatuses for thermally desorbing desired chemical products from resins to which they are adsorbed. The processes and apparatuses provide highly efficient use of applied heat throughout resin preheat, desorption and cooling phases.

An apparatus, a system and a treatment method for organic compounds included in waste water from a bitumen collecting system

A treatment method of organic compounds included in waste water, comprising the steps of: supplying waste water to an adsorber 2 filled with an adsorbent 3 therein for adsorbing the organic compounds in the waste water by the adsorbent 3 in the adsorber 2, supplying a current between an anode 9 and a cathode 8 in water including an electrolyte in an electrolyzer 6 for electrolyzing the water including an electrolyte, and supplying an electrolyte resulting from electrolysis in the electrolyzer 6 to the adsorbent 3 in the adsorber 2 for contacting the electrolyte with the adsorbent 3, so that the organic compounds adsorbed by the adsorbent 3 are desorbed or decomposed.

СПОСОБ РЕГЕНЕРАЦИИ ВСПОМОГАТЕЛЬНОГО ФИЛЬТРУЮЩЕГО СРЕДСТВА, ПРИМЕНЯЕМОГО В ПРОЦЕССЕ ВЫМОРАЖИВАНИЯ МАСЛА

Изобретение относится к способу регенерации отработавшего вспомогательного фильтрующего средства, применяемого в процессе вымораживания масла. Способ включает следующие стадии: а) циркуляцию регенерирующего масла в циркуляционном контуре через кек отработавшего вспомогательного фильтрующего средства при температуре от 40 до 100°C при отношении регенерирующее масло/отработавшее вспомогательное фильтрующее средство (об./мас.) от 0,3/1 до 12/1, b) извлечение регенерирующего масла из обработанного кека отработавшего вспомогательного фильтрующего средства, с) выделение регенерированного вспомогательного фильтрующего средства. Изобретение обеспечивает возможность многократной регенерации отработавшего фильтрующего средства и снижение количества твёрдых отходов, образующихся в процессе вымораживания масла. 9 з.п. ф-лы, 2 ил., 5 табл., 4 пр.

СПОСОБ СОРБЦИОННОЙ ОЧИСТКИ ПРОТОЧНЫХ ПРОМЫШЛЕННЫХ ТЕХНОЛОГИЧЕСКИХ И СТОЧНЫХ ВОД ОТ КАТИОНОВ НИКЕЛЯ НА КОМПОЗИТНОМ СОРБЕНТЕ

Изобретение может быть использовано на предприятиях машиностроительной, химической, горнодобывающей промышленности и в коммунальном хозяйстве. Способ включает сорбцию адсорбентом, в качестве которого используют экологически чистый, технологичный композитный сорбент, содержащий 80 мас.% 95%-ного концентрата глауконита Бондарского месторождения Тамбовской области и 20 мас.% SiO. Сорбент предварительно подвергают последовательно щелочной и кислотной обработке и переводят в Na-форму в солевом растворе NaCl. Линейная скорость потока технологических и сточных промышленных вод составляет до 0,5 м/ч, при этом высота слоя сорбента - от 0,01 м. Способ обеспечивает снижение концентрации ионов никеля в очищенной воде менее 0,01 мг/л и гарантирует глубину сорбции не менее 99,3%. 2 ил., 1 табл.

АДСОРБЦИЯ ЗАГРЯЗНИТЕЛЕЙ ИЗ ГАЗОВОГО ПОТОКА

Изобретение относится к способу и системе адсорбции загрязнителей из газового потока, в частности для получения товарного природного газа. Способ включает пропускание газового потока в емкость очистки через множество отдельных лотков, причем каждый из множества отдельных лотков содержит подвижный слой адсорбентов для адсорбции загрязнителей в газовом потоке, отведение адсорбентов через каждый из множества отдельных лотков из емкости очистки в псевдоожиженный слой регенератора, не пропуская их в другой из множества отдельных лотков, осуществление десорбции загрязнителей из адсорбентов в псевдоожиженном слое регенератора с образованием регенерированных адсорбентов, охлаждение регенерированных адсорбентов и возвращение охлажденных регенерированных адсорбентов в емкость очистки. Система содержит смесь частиц адсорбента, при этом смесь частиц адсорбента содержит различные типы адсорбента, емкость очистки, содержащую множество отдельных лотков, и регенератор. Изобретение обеспечивает эффективное ...

Method for producing sorbents for co2 capture under high temperatures

A method of producing a CO 2 adsorbent and CO 2 adsorbents. The method including the steps of: (a) producing a mixture of at least one calcium salt and at least one metal support cation in at least one solvent; (b) drying the mixture to produce a solid containing a calcium metal salt; and (c) calcining the dried solid to produce a sorbent of calcium oxide dispersed in a porous metal support.

Hybrid adsorbent and method of capturing carbon dioxide in gas

In a method of capturing carbon dioxide in a gas, carbon dioxide in a gas is adsorbed to the hybrid adsorbent prepared by mixing an adsorbent with iron oxide nanoparticles, microwaves are irradiated to the hybrid adsorbent and the carbon dioxide adsorbed to the hybrid adsorbent is desorbed from the hybrid adsorbent, and the carbon dioxide desorbed from the hybrid adsorbent is captured.

Process for the regeneration of a copper, zinc and zirconium oxide-comprising adsorption composition

The invention relates to a process for the regeneration of a copper-, zinc- and zirconium oxide-comprising adsorption composition after use thereof for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin, in which the adsorption composition is heated to a temperature in the range from 160 to 400° C. and a regeneration gas is passed through the adsorption composition, wherein the regeneration gas comprises 1000 to 3000 ppm of oxygen in an inert carrier gas.

Amine containing fibrous structure for adsorption of co2 from atmospheric air

A structure is disclosed containing a sorbent with amine groups that is capable of a reversible adsorption and desorption cycle for capturing CO 2 from a gas mixture wherein said structure is composed of fiber filaments wherein the fiber material is carbon and/or polyacrylonitrile.

Swing Adsorption Processes Utilizing Controlled Adsorption Fronts

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

Pressure-Temperature Swing Adsorption Process for the Separation of Heavy Hydrocarbons from Natural Gas Streams

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C 2+ hydrocarbons (hydrocarbons with at least 2 carbon atoms) from natural gas streams to obtain a high purity methane product stream. In more preferred embodiments of the present processes, the processes may be used to obtain multiple, high purity hydrocarbon product streams from natural gas stream feeds resulting in a chromatographic-like fractionation with recovery of high purity individual gaseous component streams.

Gas Purification Process Utilizing Engineered Small Particle Adsorbents

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Systems and methods for gas treatment

A system and process for the recovery of at least one halogenated hydrocarbon from a gas stream. The recovery includes adsorption by exposing the gas stream to an adsorbent with a lattice structure having pore diameters with an average pore opening of between about 5 and about 50 angstroms. The adsorbent is then regenerated by exposing the adsorbent to a purge gas under conditions which efficiently desorb the at least one adsorbed halogenated hydrocarbon from the adsorbent. The at least one halogenated hydrocarbon (and impurities or reaction products) can be condensed from the purge gas and subjected to fractional distillation to provide a recovered halogenated hydrocarbon.

Adsorption of contaminants from liquid and electrochemical regeneration of adsorbent

A method for the treatment of a liquid. The method comprises contacting the liquid within a treatment zone with an adsorbent material, which is then electrochemically regenerated within a regeneration zone following contact with said liquid. A disinfectant precursor species is provided within the regeneration zone and then electrochemically converted to a disinfectant species which can then contact adsorbent material and/or liquid within the regeneration zone effecting in-situ disinfection and resulting in the presence of residual disinfectant species in the treated liquid. There is further provided apparatus for carrying out such a method.

Regenerable filter unit for removing metal, regenerable filter system including the same, and method of operating regenerable filter system

A filter unit may include a water permeable first electrode, a second electrode arranged so as to be spaced apart from and opposite to the first electrode, and a non-water permeable separator that is positioned between the first electrode and the second electrode. The first electrode may include a metal adsorbent (metal-adsorbing material) and thus may adsorb a metal included in the water. At least one of the first electrode and the second electrode may induce a water hydrolysis reaction to produce H + ions to regenerate the metal adsorbent. The filter unit may further include a voltage applier to provide a filter system.

Method for producing potable water and/or purifying water including the elimination of a target compound and filtration within a filter drum

The invention relates to a method for treating water laden with pollutants for the purpose of making the water drinkable, said method including: an elimination step consisting of contacting said water laden with pollutants, within a stirred contact tank ( 2 ), with an active particulate material ( 19 ) using a predetermined concentration of the active particulate material ( 19 ) in said water; an extraction step consisting of continuously extracting from said contact tank ( 2 ) a mixture consisting of water and of active particulate material ( 19 ); a separation step consisting of continuously separating said active particulate material ( 19 ) from said mixture. According to the invention, the separation step consists in particular of feeding the mixture of water and active particulate material into a filter drum ( 4 ).

Metal complex, and adsorbent, occlusion material and separator material made from same

This invention provides a metal complex having a gas adsorption capability, a gas storing capability, and a gas separation capability. The present invention attained the above object by a metal complex comprising: a dicarboxylic acid compound (I) represented by the following General Formula (I), wherein R 1 , R 2 , R 3 , and R 4 are as defined in the specification; at least one metal ion selected from ions of a metal belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion, the organic ligand belonging to the D ∞h point group, having a longitudinal length of not less than 8.0 Å and less than 16.0 Å, and having 2 to 7 heteroatoms.

Method for the adsorptive drying of purified biogas and for regenerating laden adsorbents

In a method for adsorptively drying purified biogas and regenerating laden absorbents, foreign matter is not allowed to enter the purified biogas, the content of methane in the gas remains virtually unchanged and the effort involved in regenerating the laden adsorbent is reduced. Drying and regeneration are effected in a closed biogas cycle, wherein separate layers based on silica gel and molecular sieves are used as the adsorbent. The biogas to be dried first flows through the silica gel layer. The adsorbent is regenerated with exclusively heated, dried biomethane having a temperature of up to 150° C. which, after contact with adsorbent, is recirculated to the outflow of purified biogas. After regeneration, the bed is cooled by biomethane, which is subsequently recirculated to the outflow of purified biogas. Methane-containing water accumulating during drying and regeneration is recirculated to the biogas generation and/or purification.

Sorbent fiber compositions and methods of temperature swing adsorption

The various embodiments of the present invention relate to compositions, apparatus, and methods comprising sorbent fibers. More particularly, various embodiments of the present invention are directed towards sorbent fiber compositions for temperature swing adsorption processes. Various embodiments of the present invention comprise sorbent fiber compositions, apparatus comprising a plurality of sorbent fibers, and methods of using the same for the capture of at least one component from a medium, for example CO 2 from flue gas.

Catalytic adsorbents obtained from municipal sludges, industrial sludges, compost and tobacco waste and process for their production

Industrial waste derived adsorbents were obtained by pyrolysis of sewage sludge, metal sludge, waste oil sludge and tobacco waste in some combination. The materials were used as media to remove hydrogen sulfide at room temperature in the presence of moisture. The initial and exhausted adsorbents after the breakthrough tests were characterized using sorption of nitrogen, thermal analysis, XRD, ICP, and surface pH measurements. Mixing tobacco and sludges result in a strong synergy enhancing the catalytic properties of adsorbents. During pyrolysis new mineral phases are formed as a result of solid state reaction between the components of the sludges. High temperature of pyrolysis is beneficial for the adsorbents due to the enhanced activation of carbonaceous phase and chemical stabilization of inorganic phase. Samples obtained at low temperature are sensitive to water, which deactivates their catalytic centers.

Water treatment processes for norm removal

Methods for treating water to remove radium include contacting the water with a magnetic adsorbent comprising manganese oxide(s), and applying a magnetic field to separate the magnetic adsorbent from the water, whereby radium is removed from the water. The methods may additionally include regenerating the magnetic adsorbent, and contacting the water with regenerated magnetic adsorbent. Alternately, calcium and/or strontium may be precipitated as carbonate salts from lime-treated water containing radium and barium without precipitating a significant fraction of the barium or radium; and removing radium from calcium- and strontium-free water by precipitating the barium and radium as carbonate salts. The barium- and radium carbonate precipitate may be redissolved in hydrochloric acid and disposed of by deep-well injection.

DEVICE TO CLEAN SILOXANES FROM BIOGAS, AND A METHOD OF REGENERATING THE SAME INCLUDING ELECTRIC SWING ADSORPTION

A siloxane-adsorbent media regeneration device, system and method comprising a rectangular cylinder with first and second dielectric elements forming opposing first and second sides, and first and second electrodes forming opposing third and fourth sides thereof, and end caps disposed at opposing ends thereof. A capacitive device is coupled with the dielectric elements and configured to detect a capacitance of an adsorbent media, and a switchable heat source coupled with each of the first and second dielectric elements. A pressure vessel is configured to receive the rectangular cylinder therein, and includes apertures to permit inflow and outflow of a gas. A vibration-generating device may be coupled with one of the electrodes, as well as with a control system. Regeneration generally includes passing an electrical current through an adsorbent medium, detecting a capacitance indicating that regeneration is warranted, and heating the adsorbent medium while conveying an inert gas therethrough. 1. An adsorbent-media regeneration device , comprising:first and second dielectric elements configured to form opposing first and second sides of a rectangular cylinder;first and second electrodes disposed adjacent the first and second dielectric elements and configured to form opposing third and fourth sides of the rectangular cylinder;a capacitive device coupled with each of the first and second dielectric elements and configured to detect a capacitance of an adsorbent medium disposed within the rectangular cylinder; anda switchable heat source coupled with each of the first and second dielectric elements.2. The adsorbent-media regeneration device of claim 1 , further comprising:a first end plate disposed at and coupled with a first end of the rectangular cylinder and a second end plate disposed at and coupled with an opposing second end of the rectangular cylinder.3. The adsorbent-media regeneration device of claim 2 , wherein each of the first and second end plates include at ...

METHOD FOR PRODUCING REGENERATED CLAY, REGENERATED CLAY, AND METHOD FOR PRODUCING PURIFIED FATS AND OILS

The present invention provides a method for performing regeneration of a decolorization capacity of waste clay that has been used for purification of fats and oils, and production of a thermally recyclable compound as a biofuel from oily ingredients in the waste clay at the same time in a convenient manner. That is, a method for producing purified fats and oils of the invention includes: a method for producing regenerated clay including the steps of mixing waste clay that has been used for purification of fats and oils, lower alcohol, and an acidic catalyst; and performing extraction of oily ingredients from the waste clay, and an esterification reaction between the fats and oils and/or a free fatty acid in the oily ingredients and the lower alcohol at the same time so as to regenerate a decolorization capacity of the waste clay; regenerated clay that is produced by the method for producing the regenerated clay; and a process of decolorizing the fats and oils using the regenerated clay. 1. A method for producing regenerated clay , the method comprising the steps of:mixing waste clay that has been used for purification of fats and oils, lower alcohol, and an acidic catalyst; andperforming extraction of oily ingredients from the waste clay, and an esterification reaction between the fats and oils and/or a free fatty acid in the oily ingredients and the lower alcohol at the same time so as to regenerate a decolorization capacity of the waste clay.2. The method for producing regenerated clay according to claim 1 ,wherein 50 to 900 parts by mass of the lower alcohol is mixed with respect to 100 parts by mass of the waste clay.3. The method for producing regenerated clay according to claim 1 ,wherein the extraction of the oily ingredients, and the esterification reaction between the fats and oils and/or the free fatty acid in the oily ingredients and the lower alcohol are performed at a temperature of 60 to 200° C.4. The method for producing regenerated clay according to ...

Hydrocarbon feedstock average molecular weight increase

The invention deals with hydrocarbon feedstock molecular weight increase via olefin oligomerization and/or olefin alkylation onto aromatic rings. Addition of a purification section allows improved unit working time and lower maintenance.

Mixed salt co2 sorbent, process for making and uses thereof

The invention relates to a mixed salt composition which is useful as a CO 2 sorbent. The mixed salt composition comprises a Mg salt, and at least one Group IA element salt, where the Mg and Group IA element are present at a molar ratio of from 3:1 to 8:1. The resulting composition can adsorb about 20% or more of CO2 in a gas. Via varying the molar ratios of the components, and the Group IA element, one can develop compositions which show optional functionality at different conditions. The composition is especially useful in the adsorptive capture of CO 2 on mobile sources, such as transportation vehicles, where it can be recovered during regeneration of the adsorbent composition and the CO 2 used as a coolant gas, as a reactant in manufacture of fuel, and so forth.

PROCESS FOR PREPARATION, APPLICATION AND RECOVERY OF ABSORBENT MATERIAL FOR NONPOLAR COMPOUNDS OR MIXTURES

The present invention describes the method for preparing, using and recovering an absorbent material for apolar compounds or mixtures of apolar compounds, such as organic solvents, mineral oil and derivatives thereof, lubricant oils, edible oils, inter alia. The absorbent material is composed of an inorganic matrix of high porosity, low density and high mechanical resistance. This matrix is rendered water-proof, thus acquiring the property of absorbing apolar compounds or mixtures of apolar compounds. 115-. (canceled)16. A process of preparing an absorbent material for apolar compounds or mixtures , the process comprising:(a) impregnating with an ether solution of concentration ranging from 1% (v/v) to 20% (v/v) an absorption compound selected from the group consisting of silicone, linseed oil, glycerin, castor oil, polystyrene, soybean oil, almond oil, avocado oil, coconut oil, and cod oil, in an absorbent matrix comprising autoclaved cellular concrete or volcanic material; and(b) thermal treatment at a temperature ranging from 60° C. to 250° C. for a period ranging from 1 hour to 24 hours.17. The process of preparing an absorbent material for apolar compounds or mixtures claim 16 , according to (a) of claim 16 , wherein the volcanic material is preferably pumice with high silica content.18. The process of preparing an absorbent material for apolar compounds or mixtures claim 17 , according to claim 17 , wherein the absorption material does not comprise silicone when the volcanic material is preferably pumice with high silica content.19. An absorbent material for apolar compounds or mixtures claim 16 , characterized by comprising an absorbent matrix selected from the group comprising autoclaved cellular concrete or volcanic material impregnated with an absorption material selected from the group consisting of liquid silicone claim 16 , linseed oil claim 16 , glycerin claim 16 , castor oil claim 16 , polystyrene claim 16 , soybean oil claim 16 , almond oil claim 16 ...

ADIABATIC REGENERATION OF SULFUR CAPTURING ADSORBENTS

The present invention provides a process for regeneration of the sulfur capturing spent adsorbents after sulfur capturing using a hydrolyzing agent under adiabatic conditions. In accordance with the process of the present invention hydrolyzing agent is introduced to the spent adsorbent in a controlled manner such that the exothermic heat generated within the adsorbent bed does not rise above the predetermined temperature limit. 122-. (canceled)23. A process for adiabatic wet regeneration of spent adsorbent bed after sulfur capturing in the presence of a hydrolyzing agent; said process comprising the following steps:i. a first purging step of removing trapped liquid hydrocarbons from the spent adsorbent bed after sulfur capturing by passing a vapor phase hydrocarbon stream;ii. a second purging step of removing the vapor phase traces of trapped hydrocarbons from the spent adsorbent bed after sulfur capturing by passing a non-reactive regeneration gas stream;iii. removing the sulfur impurities from the spent adsorbent bed after sulfur capturing by gradually introducing a hydrolyzing agent in a controlled manner, while keeping the rise in initial bed temperature within a predetermined limit;iv. continuing the gradual passage of the hydrolyzing agent with increasing concentration to the spent adsorbent bed till a point of time when the bed temperature remains constant even upon the passage of the hydrolyzing agent at its peak concentration;v. further continuing the passage of the hydrolyzing agent at its peak concentration to the spent adsorbent bed after sulfur capturing till a point when the adsorbent bed temperature starts to decline; andvi. discontinuing the passage of the hydrolyzing agent to the spent adsorbent bed after sulfur capturing and increasing the temperature of the non-reactive regeneration gas to a temperature in the range of 270° C. to 350° C. for a period of 5 hours to 15 hours, to obtain a regenerated adsorbent bed.24. The process as claimed in claim ...

Titano-silico-alumino-phosphate

A titano-silico-aluminophosphate which contains tetrahedrally coordinated titanium in the framework structure, which has a free coordination site for CO which can be detected by means of a characteristic IR band at 2192±5 cm −1 . The titano-silico-aluminophosphate has extremely high hydrothermal stability and has a good adsorption capacity even at higher temperatures. Also, a hydrothermal method to obtain a titano-silico-aluminophosphate starting from a synthetic gel mixture of an aluminium, phosphorus, silicon and a titanium source, as well as corresponding templates.

System and Method for Carbon Dioxide Capture and Sequestration

A method and a system for removing carbon dioxide directly from ambient air, using a sorbent under ambient conditions, to obtain relatively pure CO 2 . The CO 2 is removed from the sorbent using process heat, preferably in the form of steam, at a temperature in the range of not greater than about 130° C., to capture the relatively pure CO 2 . Increased efficiency can be achieved by admixing with the ambient air, prior to contacting the sorbent, a minor amount of a preferably pretreated effluent gas containing a higher concentration of carbon dioxide. The captured carbon dioxide can be stored for further use, or sequestered permanently. The system provides the sorbent substrate and equipment for carrying out the above method, and for obtaining purified carbon dioxide for further use in agriculture and chemical processes, or for permanent sequestration.

Regenerable adsorption unit

An adsorption unit comprising an adsorbent hollow fibre in which the fibre includes an active component and means for transmitting heat.

Optically heated analyte desorber for gas chromatography analysis

Analytes are rapidly desorbed from a carbonaceous sorbent powder with improved quantitation and reduced analyte re-adsorption, thermal degradation, and rearrangement. The sample is distributed in a thin layer onto a desorption surface within a chamber. The layer can be a monolayer. Heating light irradiates the sample through a window, directly and rapidly heating the sample while the desorbed analytes diffuse into a vacuum or are removed by a carrier gas. Finally, the sorbent is flushed from the chamber by a transport gas. The desorption surface can be an inner surface of the window, or a surface of a porous frit that divides the chamber into two sections. The frit can be stainless steel or glass. The carrier gas can be helium, argon, or carbon dioxide. The light source can be a tungsten halogen lamp. A heater can control the chamber temperature according to a heating profile.

PROCESS FOR PURIFYING ABSORBENTS COMPRISING POLYETHYLENE GLYCOL DIMETHYL ETHERS

A process for purifying polyethylene glycol dimethyl ethers (PGDE) based absorbent (known as Selexol®) having acidic contaminants and salts thereof, this process being particularly useful in an acid gas removal loop process (known as Selexol® process). A base, such as ammonium hydroxide (NHOH), is added to the absorbent to partly of fully convert the acid into simple salts. The salts are removed in an electrodialysis cell. The base can be added directly to the absorbent either from a fresh chemical feed or as base contained in the re-generator's generator's reflux stream. Alternatively the base can be added directly into the electrodialysis unit. The solution is diluted before electrodialysis. The absorbent can be simultaneously diluted and neutralized using reflux from the regeneration section that contains dissolved ammonia. The purified solution can be used again to remove carbon dioxide, hydrogen suphide, sulfur dioxide, mercaptans and other acid gases from a gas stream. 4. The process of claim 2 , further comprising the steps of:discharging a feed stream from the feed compartment and recycling at least a portion of the feed stream to the feed compartment; and/ordischarging a waste stream from the waste compartment and recycling a least a portion of the waste stream to the waste compartment.5. The process of to wherein the electrodialysis cell comprises from about 10 to about 400 repeat units ion exchange membranes.6. The process of claim 1 , wherein the base comprises sodium hydroxide claim 1 , potassium hydroxide claim 1 , ammonium hydroxide claim 1 , carbonate or bicarbonate thereof claim 1 , or mixture thereof.7. The process of claim 1 , wherein the base is ammonium hydroxide.8. The process of claim 1 , in which the absorbent is diluted by addition of water and/or a reflux to the absorbent before being fed to the electrolysis zone.9. The process of claim 8 , wherein the reflux is a basic reflux allowing partial neutralization of the acidic contaminants of ...

Fluid Filtration Medium

A method of forming a treated granulized zeolite product includes applying a cationic surfactant to a granulized zeolite material, such that an amount applied to the granulized zeolite material covers at least 20 percent of the ECEC sites of the granulized zeolite material, granulizing a zeolite material to produce the granulized zeolite material, the zeolite material having a d50 in a range of 300 to 30 micron size. 1. A method of forming a treated granulized zeolite product , comprising:applying a cationic surfactant to a granulized zeolite material, such that an amount applied to the granulized zeolite material covers at least 20 percent of the ECEC sites of the granulized zeolite material; andgranulizing a zeolite material to produce the granulized zeolite material, the zeolite material having a d50 in a range of 300 to 30 micron size.2. A method for re-activating spent surfactant treated media , comprising: 'a quantity of cationic surfactant to cover from about 20 percent to about 100 percent of External Cation Exchange sites of the granulized zeolite; and', 'creating an aqueous solution of cationic surfactant, havingcontacting with re-activating solution, followed by backwashing and rinsing the filter media to complete activation.3. A method for treating a zeolite with a surfactant , comprising:installing a quantity of zeolite in a filter vessel;activating the zeolite having a granulized zeolite formed from at least one of a clinoptilolite, mordenite, phillipsite, erionite, chabazite, or faujasite with a prepared amount of cationic surfactant solution to cover from about 20 percent to 100 percent of the External Cation Exchange sites of the granulized zeolite;passing a volume of fluid containing turbid particles through the activated surfactant-treated zeolite;removing an amount of the turbid particles from the fluid with the activated surfactant-treated zeolite; andwherein the cationic surfactant has at least one of polyamines, quaternary amines, alkylamines, ...

SOLID-LIQUID SEPARATION DEVICE

A solid-liquid separation device performs dehydration or deoiling from a treated object using a substance A that is a gas at normal temperature and pressure and is capable of dissolving water and oil when liquefied. The separation device includes a substance B that circulates while generating phase change in a closed system, a compressor that compresses the substance B, a first heat exchanger that condenses substance B and evaporates of the substance A, an expansion valve that decompresses the condensed substance B, a second heat exchanger that evaporates substance B and condenses substance A, and a treatment tank wherein substance A is mixed with the treated object, substance A is evaporated while separated from the liquid in the first heat exchanger, and condensed in the second heat exchanger. The center of gravity of the first heat exchanger is lower than the second heat exchanger in a vertical direction. 1. A solid-liquid separation device that performs dehydration or deoiling from an object to be treated that is a mixture of water and a solid , a mixture of oil and a solid , or a mixture of water , oil , and a solid , as the object to be treated , using a substance A capable of dissolving water and oil , the solid-liquid separation device comprising:a substance B that is circulated while generating phase change in a closed system;a compressor that compresses the substance B;a first heat exchanger that exchanges heat of condensation of the substance B and heat of evaporation of the substance A;expansion means that decompresses the condensed substance B;a second heat exchanger that exchanges heat of evaporation of the substance B and heat of condensation of the substance A; anda treatment tank in which the substance A is mixed with the object to be treated, the substance A having been evaporated while separated from the water or the oil in the first heat exchanger, and condensed in the second heat exchanger, whereina center of gravity of the first heat exchanger ...

GAS RECOVERY AND CONCENTRATION DEVICE

An energy efficient and durable thermal swing type carbon dioxide recovery and concentration device can be made smaller and use low-temperature heat waste of 100° C. or less. A honeycomb rotor carries adsorption particles having a sorption capacity for carbon dioxide. The rotor is rotated in a sealed casing divided into at least an sorption zone and a desorption zone and is brought into contact with material gas that contains carbon dioxide in a state wherein the honeycombs in the sorption zone are moist so as to adsorb the carbon dioxide while carrying out evaporative cooling of water. Then, the honeycombs that have adsorbed the carbon dioxide are moved to the desorption zone and brought into contact with low pressure vapor so as to desorb high concentration carbon dioxide. Thus, it is possible to continuously recover carbon dioxide at a high recovery rate and high concentration. 111-. (canceled)12. A method comprising:providing a honeycomb rotor which supports non-water soluble carbon dioxide sorption particles having a sorption capability for carbon dioxide;rotating the honeycomb rotor though at least a sorption zone and a desorption zone which are sealed from each other; and making said sorption zone contact with a mixed gas which contains carbon dioxide while said sorption zone is wet, to sorb carbon dioxide from the mixed gas by cooling the mixed gas and vaporizing water in said sorption zone; and', 'after rotating the honeycomb rotor, desorbing the carbon dioxide by providing water vapor to the desorption zone and introducing the water vapor into honeycombs of said honeycomb rotor which have sorbed carbon dioxide, to thereby desorb carbon dioxide from the desorption zone in a state of high concentration., 'performing a recovery concentration method for carbon dioxide while rotating said honeycomb rotor, the recover concentration method comprising13. A carbon dioxide recovery concentration device comprising:a honeycomb rotor which supports non-water soluble ...

ADSORBENT HAVING MICROWAVE ABSORPTION PROPERTY

An adsorbent having a microwave absorption property is provided. The adsorbent having an improved microwave absorption property, which has a core-shell structure including a silicon carbide bead disposed therein, and an adsorbing material disposed outside the silicon carbide bead, can be provided. Also, the adsorbent may further include a plurality of silicon carbide particles dispersed and disposed therein and having a diameter of 1 μm to 10 μm, and the adsorbing material may be ion-exchanged with a cation. Therefore, the adsorbent can be useful in improving desorption efficiency since the adsorbent may be rapidly heated by microwaves to reach the desorption temperature due to high reactivity to microwaves. Also, the adsorbent can be useful in maintaining full adsorption capacity without having an influence on adsorption quantity since the silicon carbide bead is disposed in the inner core of the adsorbent. Further, when the adsorbent is applied to conventional systems for removing organic compounds using microwaves or dehumidification systems, the adsorbent can be semi-permanently used, and may also have an effect of enhancing the energy efficiency by 30% or more, compared to adsorbents used in the conventional systems. 1. An adsorbent having a microwave absorption property , which adsorbent has a core-shell structure comprising:a silicon carbide bead disposed therein; andan adsorbing material disposed outside the silicon carbide bead.2. The adsorbent of claim 1 , wherein the adsorbing material is selected from the group consisting of zeolite claim 1 , activated alumina claim 1 , and a mixture thereof.3. The adsorbent of claim 1 , wherein the silicon carbide bead has a diameter of approximately 0.5 mm 1.5 mm.4. The adsorbent of claim 1 , wherein an increase in temperature of the adsorbent is in a range of 30° C. to 50° C. when the adsorbent is irradiated with 1 kW microwaves for 60 seconds to 90 seconds.5. The adsorbent of claim 1 , further comprising a plurality ...

SYSTEMS FOR CLOSED LOOP REGENERATION OF GAS DEHYDRATION UNITS USING LIQUID PETROLEUM GAS

A system is disclosed in which water-saturated desiccant in a dehydration unit, having previously been used to dehydrate natural gas, is regenerated in a closed loop process using liquid petroleum gas (LPG). LPG is pumped from a storage tank, vaporized and superheated. The superheated LPG gas enters the dehydration unit such that the hot gas passes over the desiccant thereby regenerating the desiccant. An overhead stream from the dehydration unit passes to a condenser where the temperature of the hot gas from the dehydration unit is dropped to form a fluid stream containing LPG, water and non-condensable gases. The fluid stream passes to a three phase separator for separating the fluid stream into a gas stream, a water stream, and a liquid stream containing LPG which is then returned to the storage tank for reuse in the closed loop process. 1. A system for regenerating a gas dehydration unit containing saturated mole sieve used in a process for dehydrating a natural gas feed stream , comprising:a. a storage tank for storing liquid propane and/or butane;b. a pump for pumping the liquid propane and/or butane from the storage tank;c. at least two heat exchangers in series for receiving the liquid propane and/or butane and converting the liquid propane and/or butane to a hot propane gas and/or butane gas;d. a regeneration gas inlet in the gas dehydration unit containing the saturated mole sieve to be regenerated for receiving the hot propane and/or butane gas such that the hot propane gas and/or butane gas passes across the saturated mole sieve thereby regenerating the mole sieve;e. a condenser in communication with a regeneration gas outlet in the gas dehydration unit for receiving an overhead stream containing the hot propane gas and/or butane gas from the gas dehydration unit and dropping the temperature to form a fluid stream containing liquid propane and/or butane, and containing water and non-condensable gas;f. a three phase separator in communication with the ...

ZIRCONIUM PHOSPHATE RECHARGING METHOD AND APPARATUS

Methods and related apparatuses for sorbent recharging are provided. The methods and related apparatuses for recharging can recharge a specific rechargeable layer or module of a sorbent material such as zirconium phosphate in a sorbent cartridge. The methods and apparatuses include a fluid source containing at least one recharging fluid, wherein the fluid source is fluidly connectable to at least one rechargeable sorbent module for use in sorbent dialysis in a fluid flow path. The methods and apparatuses include passing a single solution through the zirconium phosphate for ion exchanges, resulting in zirconium phosphate to maintain a substantially consistent pH in a dialysate used during dialysis. 136-. (canceled)37. A solution for recharging zirconium phosphate , comprising a combination of at least one sodium salt and at least one acid , the solution having a predetermined pH value that results in a substantially consistent pH in a dialysate passing through the zirconium phosphate after the solution is used for recharging zirconium phosphate.38. The solution of claim 37 , wherein the solution is selected from the group consisting of sodium acetate/acetic acid solution claim 37 , glycolic/glycolate solution claim 37 , citric/citrate solution claim 37 , propionate/propionic solution claim 37 , phosphate-monobasic solution claim 37 , or any combination thereof.39. The solution of claim 37 , wherein the solution consists essentially of sodium chloride claim 37 , sodium acetate and acetic acid.40. The solution of claim 39 , wherein concentrations of the sodium chloride claim 39 , the sodium acetate claim 39 , and the acetic acid are about 3.60M claim 39 , 0.40M claim 39 , and 0.40M claim 39 , respectively claim 39 , or about 3.88M claim 39 , 0.12M claim 39 , and 0.40M claim 39 , respectively. The present application is a Divisional of U.S. patent application Ser. No. 14/722,119 filed May 26, 2015, which is a continuation-in-part (CIP) application of U.S. patent ...

METHODS FOR DECREASING AQUEOUS HALIDE AND ORGANOHALIDE LEVELS USING PLANT BIOMASS

Disclosed are processes to treat water having halide ions and organohalides. The process comprises contacting a plant biomass with an alkaline solution to give an alkaline plant biomass, and contacting the alkaline plant biomass with water to give a biomass material. An aqueous sample with organohalides or halide ions is contacted with the biomass material to provide a low halide filtrate and a spent biomass. 1. A method for removing a halide , a herbicide , or a combination thereof in an aqueous sample , the method comprising:contacting a plant biomass with an alkali solution to give an alkaline plant biomass;trans-esterifying the alkaline plant biomass to obtain a treated plant biomass; andcontacting the treated plant biomass with the aqueous sample to remove the halide, the herbicide, or a combination thereof from the aqueous sample.2. The method of claim 1 , further comprising washing the treated plant biomass before contacting the aqueous sample.3. The method of claim 2 , wherein washing the treated plant biomass comprises washing the treated plant biomass with an organic solvent claim 2 , water claim 2 , or combination thereof.4. The method of claim 2 , further comprising drying the treated plant biomass before contacting the aqueous sample.5. The method of claim 1 , wherein contacting the plant biomass with the alkali solution comprises contacting the plant biomass selected from water hyacinth claim 1 , elephant grass claim 1 , jute claim 1 , water lily claim 1 , duck weed claim 1 , azolla claim 1 , wood claim 1 , coir claim 1 , banana claim 1 , ramie claim 1 , pineapple claim 1 , sisal claim 1 , cellulose claim 1 , hemicellulose claim 1 , lignin claim 1 , and a combination thereof with the alkali solution.6. The method of claim 5 , wherein contacting the plant biomass with the alkali solution comprises contacting the plant biomass having an average particle size of about 1 micron to about 5000 microns with the alkali solution.7. The method of claim 1 , ...

USE AND REGENERATION OF AN ADSORBENT TO REMOVE DYES FROM WATER

A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution. 1: A method of removing at least one cationic dye from an aqueous solution , comprising:pouring an aqueous mixture comprising humic acid, at least one alginate, and hydroxyethyl cellulose onto a substrate to form a film, drying the film and crosslinking the film with glutaraldehyde to form a water-insoluble membrane disposed on the substrate, thencontacting the aqueous solution with an adsorbent comprising the water-insoluble membrane disposed on the substrate,wherein the water-insoluble membrane comprises consists essentially of glutaraldehyde-cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose,wherein the weight ratio of humic acid:at least one alginate:hydroxyethyl cellulose lies in the range (10-20):(60-80):(10-20) respectively; andwherein the contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution and an dye-adsorbed membrane, thentreating the dye-adsorbed membrane with an HCl solution to remove the dye from the dye-adsorbed membrane and regenerate the water-insoluble membrane.25-. (canceled)6: The method of claim 1 , wherein the pH of the aqueous solution ranges from about 3 to about 10.7. (canceled)8: The method of claim 1 , wherein the at least one cationic dye is selected from the group consisting of methylene blue claim 1 , rhodamine B claim 1 , crystal violet claim 1 , basic fuchsin claim 1 , safranin claim 1 , pararosaniline claim 1 , and a combination thereof.914-. (canceled)15: The method of ...

NON-SCALING WET AIR OXIDATION SYSTEM AND PROCESS

There is provided a system and a method for regenerating a material that reduce the incidence of scaling due to scale forming contaminants. The method may include reducing a temperature of a treated material exiting a wet air oxidation unit in a scale reducing heat exchanger prior to delivery of the treated material to a second heat exchanger which heats a source waste material comprising a scale forming contaminant therein with heat from the first treated material to form a heated waste material comprising the scale forming contaminant. 124-. (canceled)25. A treatment process comprising:reducing a temperature of a regenerated carbon material exiting a wet air oxidation unit in a first heat exchanger;delivering the reduced temperature regenerated carbon material from the first heat exchanger to a second heat exchanger, wherein the second heat exchanger heats a spent carbon material comprising spent carbon and a scale forming contaminant with heat from the regenerated carbon material to generate a heated spent carbon material; anddelivering the heated spent material to the wet air oxidation unit for regeneration of the heated spent carbon material;wherein the temperature is reduced to a temperature less than a solubility temperature limit of the scale forming contaminant at a given concentration of the scale forming contaminant.2636. The process of claim , wherein the temperature is reduced to a temperature of about 100° C. to about 185° C.2735. The process of claim , wherein the regenerated carbon material further comprises an oxygen depleted gas mixture , wherein the oxygen depleted gas mixture is also utilized to heat the spent carbon material.2835. The process of claim , wherein the scale forming contaminant comprises a member selected from the group consisting of aluminum , calcium , carbonate , iron , magnesium , phosphorus , sulfate , and combinations thereof2939. The process of claim , wherein the scale forming contaminant comprises calcium sulfate.3135. The ...

GAS RECOVERY METHOD

The invention provides a process of purifying a fluid useful in a manufacturing process, particularly in the manufacture of silicon wafers, by removing one or more impurities; and apparatus for use in the process. 1. A process for purifying a fluid , the process comprising the steps of:{'b': '1', '1.1 Providing an insulated adsorption vessel () comprising an adsorptive media;'}{'b': '1', '1.2 Providing a first fluid F;'}{'b': 1', '1', '1, '1.3 Cooling the insulated adsorption vessel () and/or cooling the first fluid, F, to an operating temperature T in the range of from −40° C. to −130° C.;'}{'b': 1', '1', '1, '1.4 Contacting the fluid F with the insulated adsorption vessel () to remove one or more impurities G;'}{'b': '2', '1.5 Collecting the resulting purified fluid F; and'}{'b': 1', '1', '1, '1.6 Regenerating the insulated adsorption vessel () by vacuum whilst maintaining the temperature of the vessel at a temperature in the range T to T+50° C. (i.e. in the range +10° C. to −130° C.).'}3. A process for purifying a fluid according to claim 1 , the process comprising the steps of{'b': 0', '0, 'sub': 2', '2, '0.1 Contacting a fluid F with an oxidation reactor to oxidise impurities in F to COand HO;'}{'b': '0', 'sub': 2', '2, '0.2 Contacting the resulting fluid F′ with an adsorption vessel, A, to remove COand with an additional adsorption vessel, B, to remove HO; or'}{'b': '0', 'sub': 2', '2, '0.3 Contacting the resulting fluid F′ with a combined adsorption vessel AB to remove COand HO;'}{'b': '1', '0.4 Collecting the resulting Fluid F;'}{'b': '1', 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '1.1 Providing an insulated adsorption vessel () as defined in ;'}{'b': 1', '1', '1, '1.3 Cooling the insulated adsorption vessel () and/or the fluid F to an operating temperature T in the range of from −40° C. to −130° C.;'}{'b': 1', '1, '1.4 Contacting the optionally cooled fluid F with the insulated adsorption vessel to remove one or more impurities G;'}{'b': '2', '1.5 ...

BEAD IMMOBILIZED WITH ABSORBENT AND MICROORGANISMS, AND METHOD FOR FABRICATING THE SAME

Provided is a bead in which an adsorbent and an organic contaminant-degrading microorganism are supported, wherein an adsorbent for adsorbing organic contaminants is supported on the bead together with an organic contaminant-degrading microorganism for degrading the organic contaminants adsorbed to the adsorbent to allow for the adsorbent to remove organic contaminants in water and to allow for the organic contaminant-degrading microorganism to regenerate the adsorbent. 1. A bead in which an adsorbent and an organic contaminant-degrading microorganism are supported , wherein air bubbles , an adsorbent for adsorbing organic contaminants in water , and an organic contaminant-degrading microorganism for degrading the organic contaminants adsorbed to the adsorbent to regenerate the adsorbent are supported in the bead.2. The bead in which an adsorbent and an organic contaminant-degrading microorganism are supported according to claim 1 , wherein the adsorbent is powdered activated carbon.3. The bead in which an adsorbent and an organic contaminant-degrading microorganism are supported according to claim 1 , which comprises an adsorbent fixed to the bead surface.4. The bead in which an adsorbent and an organic contaminant-degrading microorganism are supported according to claim 1 , which is an alginate bead or chitosan bead.5. The bead in which an adsorbent and an organic contaminant-degrading microorganism are supported according to claim 1 , wherein the organic contaminant-degrading microorganism is one capable of degrading a specific organic contaminant.6. The bead in which an adsorbent and an organic contaminant-degrading microorganism are supported according to claim 1 , wherein the organic contaminant-degrading microorganism comprises at least one selected from the group consisting of microorganisms capable of degrading toluene claim 1 , microorganisms capable of degrading benzene and microorganisms capable of degrading phenol.7. The bead in which an adsorbent and ...

METHODS FOR REGENERATING SOLID ADSORBENTS

The invention provides for a method of regenerating a solid adsorbent, such as a molecular sieve or activated carbon, using stable fluorinated hydrocarbon compounds such as, for example, HFC-245cb (1,1,1,2,2-pentafluoropropane, as a regeneration fluid. 127-. (canceled)28. A composition comprising HFC-245cb (1 ,1 ,1 ,2 ,2-pentafluoropropane) and a fluorinated hydrocarbon selected from the group consisting of HFC-245fa (1 ,1 ,1 ,3 ,3-pentafluoropropane) , HCF-245eb (1 ,1 ,1 ,2 ,3-pentafluoropropane) , HFC-245ea (1 ,1 ,2 ,3 ,3-pentalfuoropropane) , HFC-245ca (1 ,1 ,2 ,2 ,3-pentafluoropropane) , HFC-236ea (1 ,1 ,1 ,2 ,3 ,3-hexafluoropropane) , HFC-236fa (1 ,1 ,1 ,3 ,3 ,3-hexafluoropropane) , HFC-236cb (1 ,1 ,1 ,2 ,2 ,3-hexafluoropropane) , HFC-236ca (1 ,1 ,2 ,2 ,3 ,3-hexafluoropropane) , HFC-254fa (1 ,1 ,3 ,3-tetrafluoropropane) , HFC-254th (1 ,1 ,1 ,3-tetrafluoropropane) , HFC-254eb (1 ,1 ,1 ,2-tetrafluoropropane) , HFC-254cb (1 ,1 ,2 ,2-tetrafluoropropane) , HFC-254ca (1 ,2 ,2 ,3-tetrafluoropropane) , HFC-254ea (1 ,1 ,2 ,3-tetrafluoropropane) , HFC-263fa (1 ,1 ,3-trifluoropropane) , HFC-263fb (1 ,1 ,1-trifluoropropane) , HFC-263ea (1 ,2 ,3-trifluoropropane) , HFC-263eb (1 ,1 ,2-trifluoropropane) , HFC-263ca (1 ,2 ,2-trifluoropropane) , HFC-272fa (1 ,3-difluoropropane) , HFC-272ea (1 ,2-difluoropropane) , HFC-272ca (2 ,2-difluoropropane) , HFC-272fb (1 ,1-difluoropropane) , HFC-281fa (1-fluoropropane) , HFC-281ea (2-fluoropropane) , HFC-218 (octafluoropropane) , HFC-227ca (1 ,1 ,1 ,2 ,2 ,3 ,3-heptafluoropropane) , HFC-227ea (1 ,1 ,1 ,2 ,3 ,3 ,3-heptafluoropropane) , HFC-116 (1 ,1 ,1 ,2 ,2 ,2-hexafluoroethane) , HFC-134 (1 ,1 ,2 ,2-tetrafluoroethane) , HFC-134a (1 ,1 ,1 ,2-tetrafluoroethane) , HFC-125 (1 ,1 ,1 ,2 ,2-pentafluoroethane) , HFC-143 (1 ,1 ,2-trifluoroethane) , HFC-143a (1 ,1 ,1-trifluoroethane) , HFC-152 (1 ,2-difluoroethane) , HFC-152a (1 ,1-difluoroethane) , HFC-161 (fluoroethane) , FC-14 (tetrafluoromethane) , HFC-23 (trifluoromethane) , HFC-32 ( ...

BORON REMOVAL AND MEASUREMENT IN AQUEOUS SOLUTIONS

In one embodiment, the invention relates to a carbon-based boron removal medium with hydroxyl groups and amine group, and in particular, to a method for forming the carbon-based boron removal medium. In a specific embodiment, nitrogen-doped (“N-doped”) graphene oxide is synthesized by a simple two-step process: (1) oxidation of graphite to graphene oxide, and (2) nitrogen-doping (“N-doping”) the graphene oxide to form the amine group. The resultant N-doped graphene oxide can efficiently remove boron from aqueous solutions. In another embodiment, a method of sensing or detecting the presence of boron in an aqueous solution by using a boron sensing medium comprises at least two hydroxyl groups and at least one pyridinic nitrogen or pyrrolic nitrogen or quaternary nitrogen (i.e. pyridoxine, in particular vitamin B6). The boron ions in the solution would form a highly ionized complex, which can cause significant increase in electrical conductivity of the solution, which can then be used to measure the concentration of boron in said solution. 1. A method of removing or reducing the amount of boron present in an aqueous solution , wherein the boron exists in a form of boric acid (HBO) or borate ions (B(OH) , BO , HBO) in the aqueous solution , the method comprising:contacting a boron removal medium with the aqueous solution, wherein the boron removal medium comprises a carbon-based material comprising at least one hydroxyl group and at least one nitrogenous group selected from the group consisting of a pyridinic nitrogen, a pyrrolic nitrogen, a graphitic nitrogen, an amine group, and combinations thereof; wherein the carbon-based material comprises at least one of a graphene, a graphite, a graphene oxide, a carbon nanotube, an activated carbon, lonsdaleite, a fullerene, a carbon fiber, a carbon black, a charcoal, and an amorphous carbon; andseparating the boron removal medium from the aqueous solution.26-. (canceled)7. The method according to claim 1 , wherein the carbon- ...

System and Method for Carbon Dioxide Capture and Sequestration

A method and a system capable of removing carbon dioxide directly from ambient air, and obtaining relatively pure CO. The method comprises the steps of generating usable and process heat from a primary production process, applying the process heat from said primary process to co-generate substantially saturated steam, alternately repeatedly exposing a sorbent to removal and to capture regeneration system phases, wherein said sorbent is alternately exposed to a flow of ambient air during said removal phase, to sorb, and therefore remove, carbon dioxide from said ambient air, and to a flow of the process steam during the regeneration and capture phase, to remove the sorbed carbon dioxide, thus regenerating such sorbent, and capturing in relatively pure form the removed carbon dioxide. The sorbent can be carried on a porous thin flexible sheet constantly in motion between the removal location and the regeneration location 124-. (canceled)25. A method for controlling average temperature of a planet's atmosphere by removing carbon dioxide from the atmosphere to reduce global warming , the method comprising:{'sub': 2', '2', '2', '2, 'siting a plurality of a CO-extraction systems distributed on each of the inhabited continents of the Earth, at least near to fossil fuel power sources of CO, each of said CO-extraction systems comprising an amine adsorbent supported on a solid substrate for adsorbing COfrom atmospheric air;'}{'sub': '2', 'a closed regenerating system for regenerating the solid sorbent by driving off the COfrom the sorbent into the closed system;'}a sequestration system that isolates the carbon dioxide removed from the sorbent for storage or use in other processes;{'sub': '2', 'the CO-extraction systems being open to the atmosphere so that air can circulate over the supported amine sorbent;'}{'sub': '2', 'the closed regenerating system comprising a closed chamber, a source of steam at a temperature of less than about 120° C., and a conduit for directing the ...

SYSTEMS, DEVICES AND METHODS FOR REGENERATION OF A SORBENT

An environmental control system is provided. The system includes a sorbent regeneration device. The sorbent regeneration device includes at least one regenerative sorbent material operative to remove gas substances from air. The at least one regenerative sorbent material is operatively coupled to a source of hot air. The sorbent regeneration device further includes at least two bypass valves that are operative to selectively direct some or all of the hot air into the at least one regenerative sorbent material. The environmental control system further includes one or more air quality sensors and a controller operatively connected to the at least two bypass valves and the one or more air quality sensors. The controller is operative to control one or more of the at least two bypass valves in response to air quality determined from the air quality sensors. 1. An environmental control system comprising: at least one regenerative sorbent material operative to remove gas substances from air, the at least one regenerative sorbent material operatively coupled to receive hot air; and', 'at least two bypass valves operative to selectively direct some or all of the hot air to the at least one regenerative sorbent material;, 'a sorbent regeneration device comprisingone or more air quality sensors; and determine an air quality value based on signals from the one or more air quality sensors; and', 'control the at least two bypass valves in response to the air quality value., 'a controller operatively connected to the sorbent regeneration device, and the one or more air quality sensors, the controller operative to2. The environmental control system of claim 1 , wherein the sorbent regeneration device comprises at least two regenerative sorbent materials claim 1 , and wherein the controller is further operative to selectively direct the hot air independently to one of the at least two regenerative sorbent materials.3. The environmental control system of claim 1 , wherein the ...

PROCESS FOR REMOVING ALKENE AND/OR ALKYNE FROM A HYDROCARBON FEEDSTOCK

The present invention relates to a process for purifying a hydrocarbon feedstock, said process comprising the steps: (a) providing the hydrocarbon feedstock comprising an aromatic compound and at least one compound, selected from the group consisting of alkene, alkyne, nitrogen-containing compound or mixtures thereof; and (b) contacting the hydrocarbon feedstock with an acidic montmorillonite adsorbent at a temperature in the range from 10 to 60° C. 1. A process for purifying a hydrocarbon feedstock , said process comprising the steps:(a) providing the hydrocarbon feedstock comprising an aromatic compound and at least one compound, selected from the group consisting of alkene, alkyne, nitrogen-containing compound or mixtures thereof; and(b) contacting the hydrocarbon feedstock with an acidic montmorillonite adsorbent at a temperature in the range from 10 to 60° C.2. The process according to claim 1 , wherein the aromatic compound is an aromatic hydrocarbon compound selected from benzene claim 1 , toluene claim 1 , xylene claim 1 , ethylbenzene claim 1 , their derivatives claim 1 , and mixtures thereof.3. The process according to claim 1 , wherein the alkene is C4 to C10 alkene.4. The process according to claim 1 , wherein the alkyne is C4 to C10 alkyne.5. The process according to claim 1 , wherein the nitrogen-containing compound is N-formyl morpholine.6. The process according to claim 1 , wherein contacting of the hydrocarbon feedstock with the acidic montmorillonite adsorbent is carried out at a gauge pressure in the range from 0 to 6×10Pascal.7. The process according to claim 1 , wherein the acidic montmorillonite adsorbent comprises a content of H per gram of adsorbent of at least 1 μmol.8. The process according to claim 7 , wherein the acidic montmorillonite adsorbent is obtainable by treating a montmorillonite with an acid.9. The process according to claim 8 , wherein the acid is selected from the group consisting of ammonium sulfate claim 8 , sulfuric acid ...

SOLID SUPPORT COMPRISING CARBON NANOTUBES, SYSTEMS AND METHODS TO PRODUCE IT AND TO ADSORBE ORGANIC SUBSTANCES ON IT

Method for manufacturing an inert solid support with optionally functionalised carbon nanotubes (CNTs), comprising the steps of: i) providing an inert solid support and at least one catalytic metal associated with, or absorbed in, or adsorbed/deposited on, said support, said metal being optionally selected from among the group consisting of iron, cobalt, nickel, molybdenum and combinations thereof; ii) supplying a source of gaseous, liquid or solid carbon to the catalytic metal; iii) through chemical vapor deposition (CVD), depositing at least part of the carbon source at the catalytic metal as CNTs, stably connected to the inert solid support. The present invention further regards an inert solid support and a separation method. 1. Method for manufacturing inert solid supports with optionally functionalised carbon nanotubes (CNTs) , comprising steps of:i) providing inert solid supports and at least one catalytic metal absorbed in, or adsorbed or deposited on, said supports, said metal being optionally selected from among the group consisting of iron, cobalt, nickel, molybdenum and combinations thereof;ii) supplying a gaseous, liquid or solid carbon source to the catalytic metal;iii) through chemical vapor deposition (CVD), depositing at the catalytic metal at least part of the carbon source as CNTs, stably connected to the inert solid supports;wherein the inert solid supports are in the form of particulate, granule or pellet with an over-nanometric particle size distribution, that is inert solid supports having an average size distribution comprised from 0.1 mm to 5 mm, and wherein the CNTs are in the form of scattered bundles or tangle, grouped at the catalytic metal.2. The method according to claim 1 , wherein the inert solid supports are selected from among the group consisting of aluminium silicate (for example: mullite) claim 1 , silico-aluminates claim 1 , quartz sand claim 1 , quartz claim 1 , alumina or aluminium oxide (for example: corundum) claim 1 , ...

SODIUM-CALCIUM-ALUMINOSILICATE COLUMN FOR ADSORBING CO2

A new adsorbent CO-ONE for removal of acidic gases such as carbon dioxide and hydrogen sulfide was developed from hydrothermal reaction of natural limestone with natural kaolin via sodium hydroxide. Several synthesis conditions were employed such as initial concentration of NaOH, weight ratio of limestone to kaolin, reaction temperature and pressure. The produced Ca—Na—SiO—AlOsamples were characterized using XRD and EDS and showed that a mixture of Gehlenite CaAl(ASiO)OHand Stilbite NaCa(AlSiO) with percentage of 43 and 57 was successfully produced, respectively. Another produced sample showed the presence of Gehlenite CaAl(AlSiO)OH, Stilbite NaCa(AlSiO) and Lawsonite CaAlSiOOH(HO) with percentage of 4.1 and 7.4 and 88, respectively. 19-. (canceled)10: A COadsorption column , comprising: [{'sub': '2', 'a COinlet,'}, 'a gas outlet, and', {'sub': '2', 'a fixed bed column disposed inside the column between the COinlet and the gas outlet,'}], 'an gas adsorption column having{'sub': 2', '2', '3, 'wherein the fixed bed column comprises a Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition comprising 3-6% gehlenite, 5-9% stilbite, and 86-92% lawsonite.'}11: The COadsorption column of claim 10 , wherein the Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition comprises 4-5% gehlenite claim 10 , 6-8% stilbite claim 10 , and 87-91% lawsonite.12: The COadsorption column composition of claim 10 , wherein the Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition comprises 4.1% gehlenite claim 10 , 7.4% stilbite claim 10 , and 88% lawsonite.1315-. (canceled)16: The COadsorption column of claim 10 , wherein the fixed bed column has an acidic gas adsorption capacity of 0.10 mol/g to 0.2 mol/g after a 1regeneration cycle.17: The COadsorption column of claim 10 , wherein the fixed bed column has an acidic gas adsorption capacity of 2.0 mol/g to 2.5 mol/g after a 5regeneration cycle. This application is a continuation of Ser. No. 14/167,460, allowed.Technical FieldThe ...

ISOTHERMAL CO2 ADSORPTION COLUMN

A new adsorbent CO-ONE for removal of acidic gases such as carbon dioxide and hydrogen sulfide was developed from hydrothermal reaction of natural limestone with natural kaolin via sodium hydroxide. Several synthesis conditions were employed such as initial concentration of NaOH, weight ratio of limestone to kaolin, reaction temperature and pressure. The produced Ca—Na-SiO2-Al2O3 samples were characterized using XRD and EDS and showed that a mixture of Gehlenite CaAl(AlSiO)OHand Stilbite NaCa(AlSiO) with percentage of 43 and 57 was successfully produced, respectively. Another produced sample showed the presence of Gehlenite CaAl(AlSiO)OH, Stilbite NaCa(AlSiO) and Lawsonite CaAlSiOOH(HO) with percentage of 4.1 and 7.4 and 88, respectively. 1. An isothermal COadsorption column , comprising: [{'sub': '2', 'a COinlet at a first end,'}, 'a gas outlet at a second end, and', 'a fixed bed column disposed inside the column,, 'an gas adsorption column having{'sub': 2', '2', '3, 'wherein the fixed bed column comprises a Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition comprising40-45% gehlenite and 55-60% stilbite.2. The isothermal COadsorption column of claim 1 , wherein the fixed bed column further comprises one or more acidic gases adsorbed on the Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition.3. The isothermal COadsorption column of claim 1 , wherein the Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition comprises 42-44% gehlenite and 56-58% stilbite.4. The isothermal COadsorption column of claim 1 , wherein the Ca—Na—SiO—AlO/Sodium-Calcium-Aluminosilicate composition comprises 43% gehlenite and 57% stilbite.57-. (canceled)8. The isothermal COadsorption column of claim 1 , having an acidic gas adsorption capacity of 0.10 mol/g-0.2 mol/g after a 1regeneration cycle.9. The isothermal COadsorption column of claim 1 , having an acidic gas adsorption capacity of 2.0 mol/g-2.5 mol/g after a 5regeneration cycle.1017-. (canceled) This application is a ...

FOUR-AXIAL-FINS FIXED BED REACTOR FOR USE WITH CALCIUM ALUMINATE CARBONATES CO2 SORBENTS

A four-axial-fins fixed bed reactor for use with calcium aluminate carbonates COsorbents is provided. The four-axial-fins fixed bed reactor includes a tubular reactor and a four-axial-fins tube. The tubular reactor has a tubular reactor inner wall. The four-axial-fins tube is disposed in the tubular reactor, wherein the four-axial-fins tube includes a tube and four axial fins. The tube has a tube outer wall. An annular space is formed between the tube and the tubular reactor. The four axial fins extend along the radial direction of the tubular reactor from the tube outer wall to connect the tubular reactor inner wall, wherein the annular space is equally divided by the four axial fins. 1. A four-axial-fins fixed bed reactor for use with calcium aluminate carbonates COsorbents , comprising:a tubular reactor having a tubular reactor inner wall; and a tube having a tube outer wall, wherein an annular space is formed between the tube and the tubular reactor;', 'four axial fins extending along the radial direction of the tubular reactor from the tube outer wall to connect the tubular reactor inner wall, wherein the annular space is equally divided by the four axial fins., 'a four-axial-fins tube disposed in the tubular reactor, including2. A fixed bed reactor , comprising:a tubular reactor having a tubular reactor inner wall; anda heat conducting device disposed in the tubular reactor, wherein the heat conducting device is removable from the tubular reactor, wherein the heat conducting device includes a plurality of heat conducting plates disposed along the axial direction of the tubular reactor and connected to each other, wherein the plurality of heat conducting plates extend outward along the radial direction of the tubular reactor from the interior of the tubular reactor to contact the tubular reactor inner wall.3. The fixed bed reactor of claim 2 , wherein the fixed bed reactor is for a first material to adsorb a second material and to desorb the same after being ...

METHODS AND SYSTEMS FOR PRODUCING LOW SUGAR BEVERAGES

Methods and systems are disclosed for selectively removing naturally-occurring sugars in beverages in an effective, affordable and scalable manner. 1. A method of lowering the sugar content of a fruit juice , the method comprising:(a) separating at least part of solid components from the juice; and(b) contacting a first adsorbent with the juice, the first adsorbent being active so as to have a higher relative selectivity for disaccharides than for monosaccharides and organic acids, wherein the first adsorbent comprises a zeolite, to treat the juice and obtain a treated juice having at least 30% less sugar than the untreated form of the juice and a ratio of disaccharides to total sugars below at least 30 percent.2. The method of claim 1 , further comprising the steps of:hydrolyzing the disaccharides bound to the first adsorbent into monosaccharides after the juice has contacted the first adsorbent; wherein the hydrolyzing is performed by heating the first absorbent;washing the first adsorbent with a solution to remove the hydrolyzed monosaccharides, wherein the solution comprises at least one of: water, water in a mixture with at least one of fructose, glucose and galactose, and a solution of at least one of fructose, glucose and galactose; andregulating the acidity of the treated juice to have a pH of at least about 4.3. The method of claim 1 , wherein a Brix/acidity ratio of the treated juice is decreased to be less than about 20% claim 1 , when compared to the untreated form of the juice.45.-. (canceled)6. The method of claim 1 , wherein the first adsorbent is in a column.78.-. (canceled)9. The method of claim 1 , wherein the zeolite is selected from zeolites having a Si/Al molar ratio of at least about 10:1 and up to about 30:1.10. The method of claim 1 , wherein the zeolite comprises at least one of: Y Zeolite H claim 1 , and Y Zeolite Ca.1114.-. (canceled)15. The method of claim 1 , wherein the first adsorbent is associated with a carrier claim 1 , wherein the ...

PACKING MATERIAL FOR LIQUID CHROMATOGRAPHY AND COLUMN FOR LIQUID CHROMATOGRAPHY

A packing material for liquid chromatography, which is excellent in durability, and a column for liquid chromatography, which is filled with the packing material, are provided. The packing material for liquid chromatography is characterized by comprising a hydrophilic resin containing a polyvinyl alcohol resin, to said hydrophilic resin an amino group represented by the formula (1) having been bonded through a spacer. In the formula (1), Rrepresents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Rrepresents an alkyl group having 1 to 6 carbon atoms and having one or more hydroxyl groups, and ※ represents a bonding position to the spacer. 2. The packing material for liquid chromatography as claimed in claim 1 , wherein Ris a hydrogen atom or a methyl group.4. The packing material for liquid chromatography as claimed in claim 1 , wherein the amino group represented by the formula (1) is derived from any one amine of the group consisting of D-glucamine claim 1 , N-methyl-D-glucamine claim 1 , 1-amino-1-deoxy-D-mannitol claim 1 , 1-amino-1-deoxy-D-galactitol claim 1 , 1-amino-1-deoxy-D-iditol claim 1 , 1-amino-1-deoxy-D-arabinitol claim 1 , 1-amino-1-deoxy-D-xylitol claim 1 , 4-amino-1 claim 1 ,2 claim 1 ,3-butanetriol claim 1 , 3-amino-1 claim 1 ,2-propanediol and 3-methylamino-1 claim 1 ,2-propanediol.5. The packing material for liquid chromatography as claimed in claim 1 , wherein the spacer is derived from a compound having a glycidyl group at an end.6. A column for liquid chromatography claim 1 , using the packing material for liquid chromatography as claimed in . This is a divisional of U.S. application Ser. No. 15/121,806 filed Aug. 26, 2016, which is a National Stage of International Application No. PCT/JP2015/055031, filed Feb. 23, 2015, claiming priority based on Japanese Patent Application No. 2014-038331, filed Feb. 28, 2014, the contents of all of which are incorporated herein by reference in their entirety.The present invention relates to a ...

Low Cost Immobilized Amine Regenerable Solid Sorbents

A method of modifying a chemical interaction between a functional group of an immobilized amine in a solid sorbent composition and a compound that chemically interacts with the functional group to reduce the heat required to desorb the compound from the solid sorbent. A method of inhibiting degradation of an immobilized amine in an immobilized amine solid sorbent. Compositions and methods of use of a low-cost regenerable immobilized amine solid sorbent resistant to degradation. 1. A method of removing a compound from a gas stream comprising: i. an immobilized amine susceptible to chemosorbing the compound,', 'ii. an alcohol species capable of lowering the threshold temperature for dissociation of the bond between the compound and the amine, and', 'iii. an inorganic base,, 'a. employing a regenerable solid sorbent in the gas stream, wherein the regenerable solid sorbent comprises,'}b. allowing the regenerable solid sorbent to adsorb the compound from the gas stream, and;c. heating the solid sorbent to a temperature above the threshold temperature for dissociation of the bond between the adsorbed compound and the immobilized amine, but below the threshold temperature for dissociation of the immobilized amine.2. The method of wherein the gas stream is flue gas claim 1 , the compound is CO claim 1 , the solid support is SiO claim 1 , the amine is an aliphatic amine claim 1 , the adhesive is an epoxy claim 1 , the alcohol species is a polyethylene glycol and the inorganic base is NaCO.3. The method of wherein the gas stream is flue gas and the compound is SO claim 1 , the solid support is SiO claim 1 , the amine is an aromatic amine claim 1 , the adhesive is an epoxy claim 1 , the alcohol species is a polyethylene glycol and the inorganic base is NaCO.4. A regenerable immobilized amine solid sorbent composition comprising:a. a solid support particle, 'i. wherein the immobilized amine comprises an adhesive and an amine susceptible to adsorbing a compound,', 'b. an ...

COMPOUND BED DESIGN WITH ADDITIONAL REGENERATION STEPS FOR REMOVAL OF VARIOUS SULFUR SPECIES FROM LIGHTER HYDROCARBON STREAMS CONTAINING TRACE LEVELS OF OLEFINS

A process is provided to remove impurities including water, mercaptans, carbonyl sulfide and hydrogen sulfide from hydrocarbon streams containing from 100 to 900 ppm light olefins. In the process, a compound bed containing multiple layers of molecular sieves is used to remove the specific impurities. In situations when the regeneration gas may contain sulfur compounds, a sulfur guard bed may be used to treat the regeneration gas prior to regenerating the compound adsorbent bed. 1. A process for treating a liquid hydrocarbon stream comprising propane or butane , between about 10 ppm to 1000 ppmv light olefins and contaminants comprising sending said liquid hydrocarbon stream through a compound adsorbent bed comprising at least two layers of adsorbents to remove at least a portion of said contaminants.2. The process of wherein said liquid hydrocarbon stream comprises about 100 to 900 ppm light olefins.3. The process of wherein said liquid hydrocarbon stream comprises a mixture of C claim 1 , Cand C+ hydrocarbons.4. The process of wherein said adsorbent bed comprises an adsorbent selected from the group consisting of zeolites claim 1 , alumina and a hybrid adsorbent comprising a mixture of zeolites and alumina.5. The process of wherein said contaminants are selected from the group consisting of mercaptans claim 1 , carbonyl sulfide claim 1 , hydrogen sulfide claim 1 , disulfides and water.6. The process of wherein said compound bed comprises a layer of zeolites to remove water claim 1 , light mercaptans or disulfides and a layer of alumina to remove carbonyl sulfide or hydrogen sulfide.7. The process of wherein said compound bed comprises a layer of a hybrid zeolite-alumina adsorbent for removal of water claim 1 , light mercaptans or disulfides claim 1 , carbonyl sulfide or hydrogen sulfide and a layer of alumina for removal of additional carbonyl sulfide and hydrogen sulfide.8. The process of wherein said compound bed comprises a layer of molecular sieves to remove ...

CARBON DIOXIDE REMOVAL DEVICE AND METHOD FOR RECOVERING CARBON DIOXIDE ADSORPTION CAPACITY OF ADSORBENT

A carbon dioxide removal device that include an adsorbent and a reaction vessel that have the adsorbent installed therein, and that brings a gas to be treated containing carbon dioxide into contact with the adsorbent and thereby removes carbon dioxide from the gas, in which the carbon dioxide removal device further includes a water adjustment unit that supplies water to the reaction vessel and discharges water from the reaction vessel 1. A carbon dioxide removal device to bring a gas to be treated comprising carbon dioxide into contact with the adsorbent and thereby remove carbon dioxide from the gas , comprising an adsorbent and a reaction vessel comprising the adsorbent installed therein ,wherein the carbon dioxide removal device further comprises a water adjustment unit to supply water to the reaction vessel and discharge water from the reaction vessel.2. The carbon dioxide removal device according to claim 1 , whereinthe water adjustment unit comprises:a water supply flow channel to supply water to the reaction vessel;a water supply amount adjustment unit to adjust the amount of water to be supplied from the water supply flow channel to the reaction vessel;a water discharge flow channel to discharge water from the reaction vessel; anda water discharge amount adjustment unit to adjust the amount of water to be discharged from the reaction vessel to the water discharge flow channel.3. The carbon dioxide removal device according to claim 2 , whereinthe carbon dioxide removal device further comprises a carbon dioxide adsorption capacity detection unit to detect the carbon dioxide adsorption capacity of the adsorbent, andthe water supply amount adjustment unit is configured to adjust the amount of water to be supplied to the reaction vessel on the basis of the carbon dioxide adsorption capacity of the adsorbent detected at the carbon dioxide adsorption capacity detection unit.4. The carbon dioxide removal device according to claim 2 , whereinthe carbon dioxide ...

GAS CAPTURE SYSTEM

Disclosed herein is a method of regenerating a sorbent of gas in a capture process of said gas, wherein the capture process comprises recirculating the sorbent between a gas capturing system and regenerating reactor system, the method comprising the regenerating reactor system performing the steps of: receiving a solid sorbent to be regenerated, wherein the sorbent is a sorbent of carbon dioxide gas; generating heat by combusting a fuel with an oxidising agent in the presence of a catalyst; regenerating the sorbent by using the generated heat to indirectly heat the sorbent so that the sorbent releases carbon dioxide gas; outputting the regenerated sorbent; and outputting the released carbon dioxide gas. Advantages of the gas capture system include a higher efficiency than known techniques. 1. A method of regenerating a sorbent of gas in a capture process of said gas , wherein the capture process comprises recirculating the sorbent between a gas capturing system and regenerating reactor system , the method comprising the regenerating reactor system performing the steps of:receiving a solid sorbent to be regenerated, wherein the sorbent is a sorbent of carbon dioxide gas;generating heat by combusting a fuel with an oxidising agent in the presence of a catalyst;regenerating the sorbent by using the generated heat to indirectly heat the sorbent so that the sorbent releases carbon dioxide gas;outputting the regenerated sorbent; andoutputting the released carbon dioxide gas.2. The method according to claim 1 , wherein the regenerating reactor system comprises:a sorbent input that receives the sorbent; anda sorbent output that outputs the regenerated sorbent.3. The method according to claim 2 , wherein said step of regenerating the sorbent by indirectly heating the sorbent comprises indirectly heating the sorbent as it moves from the sorbent input to the sorbent output.4. The method according to any preceding claim claim 2 , wherein the received sorbent comprises a metal ...

PROCESS FOR REMOVING METHOXYETHANOL FROM A MIXTURE COMPRISING METHOXYETHANOL AND MORPHOLINE

A method for removing methoxyethanol from a mixture comprising methoxyethanol and morpholine makes use of the selective adsorption of methoxyethanol onto a mixed oxide comprising a spinel phase. The mixed oxide comprises 20 to 30% by weight MgO and 80 to 70% by weight AlO. The spinel phase has the formula MgAlO. The mixture is a pre-purified reaction output of the reaction of diethylene glycol with ammonia in the presence of an amination catalyst. 1. A method for removing methoxyethanol from a mixture comprising methoxyethanol and morpholine by selective adsorption of methoxyethanol onto a mixed oxide comprising a spinel phase.2. The method according to claim 1 , wherein the spinel phase has the formula{'br': None, 'sub': 2', '4, 'ABO'}in whichA is a divalent cation; andB is a trivalent or tetravalent cation.3. The method according to claim 2 , wherein the spinel phase has the formula MgAlO.4. The method according to claim 3 , wherein the mixed oxide comprises 20 to 30% by weight MgO and 80 to 70% by weight AlO.5. The method according to claim 1 , wherein the mixture is passed over a bed of the mixed oxide.6. The method according to claim 1 , wherein the mixture comprises in addition at least one component selected from 1 claim 1 ,2-ethylenediamine claim 1 , methoxyethylmorpholine and formylmorpholine.7. The method according to claim 1 , wherein the mixture is dried prior to the selective adsorption.8. The method according to claim 7 , wherein the mixture is dried by bringing it into contact with a molecular sieve.9. The method according to claim 1 , wherein the mixed oxide is regenerated by treatment with water.10. The method according to claim 9 , wherein coadsorbed morpholine is desorbed prior to the regeneration of the mixed oxide.11. The method according to claim 10 , wherein coadsorbed morpholine is desorbed by passing over an inert gas or an inert gas containing steam.12. The method according to claim 11 , wherein the desorbed coadsorbed morpholine is ...

ELECTROCHEMICAL ADSORBTION WITH GRAPHENE NANOCOMPOSITES

In alternative aspects, the invention provides processes for cyclic electrochemical adsorption of aqueous contaminants using nanocomposites of graphene with tin oxide or antimony doped tin oxide. 1. A process for treating a liquid , comprising:contacting the liquid with a solid adsorbent nanocomposite of graphene with tin oxide (TO) or antimony doped tin oxide (ATO), so that a contaminant in the liquid is adsorbed onto the nanocomposite to provide a treated liquid; and,passing a current through the nanocomposite to regenerate the nanocomposite by electrochemical conversion of the adsorbed contaminant so as to remove the contaminant from the nanocomposite and thereby provide a regenerated nanocomposite.2. The process of claim 1 , wherein the liquid is aqueous and the contaminant is an organic compound.3. The process of or claim 1 , wherein the electrochemical conversion comprises electrochemical oxidation of the contaminant.4. The process of any one of to claim 1 , wherein the current is 3-50 mA per cmof a current feeder for the nanocomposite.5. The process of claim 4 , wherein the current is 5-15 mA per cmof the current feeder.6. The process of or claim 4 , wherein the current feeder is graphite claim 4 , and a bed of the nanocomposite sits on the current feeder.7. The process of claim 6 , wherein the bed of the nanocomposite is from about 0.2 mm to 2 mm thick.8. The process of or claim 6 , wherein a salt is added to the bed of nanocomposite.9. The process of claim 8 , wherein the salt is NaCl or NaSO.10. The process of any one of to claim 8 , wherein the process is a batch treatment process.11. The process of any one of to claim 8 , wherein the process is a continuous treatment process.12. The process of any one of to claim 8 , wherein the process further comprises contacting the liquid with the regenerated nanocomposite.13. The process of claim 12 , wherein the process further comprises a plurality of cycles of contacting the liquid and regenerating the ...

CO2 CONCENTRATION REDUCING DEVICE

Disclosed is a COconcentration reducing device for separating and removing COfrom a gas containing COwith a COadsorbent, the COconcentration reducing device including: an adsorbent container which contains the COadsorbent; and a heating unit which heats the COadsorbent by an induction heating or a dielectric heating. Thus, a ventilation quantity can be reduced when COaccumulated in a room is removed, and an electric power required for the ventilation and the electric power required for air conditioning can be reduced. 1. A CO2 concentration reducing device for separating and removing CO2 from a gas containing CO2 with a CO2 adsorbent ,the CO2 concentration reducing device comprising:an adsorbent container which contains the CO2 adsorbent; anda heating unit which heats the CO2 adsorbent by an induction heating or a dielectric heating.2. The CO2 concentration reducing device according to claim 1 ,wherein the CO2 adsorbent contains a cerium oxide or a cerium composite oxide.3. The CO2 concentration reducing device according to claim 1 ,wherein a heating element which generates a heat by the induction heating is arranged between the CO2 adsorbent.4. The CO2 concentration reducing device according to claim 1 ,wherein the CO2 adsorbent is contained in the adsorbent container in the state of being mixed with a heating element which generates a heat by the induction heating.5. The CO2 concentration reducing device according to claim 3 ,wherein the CO2 adsorbent is contained in the adsorbent container in the state of being fixed to the heating element.6. The CO2 concentration reducing device according to claim 3 ,wherein the heating element has a columnar shape, a tabular shape, a pulverized shape, a honeycomb shape, a netlike shape, a linear shape, a spiral shape, or an annular shape.7. The CO2 concentration reducing device according to claim 3 ,wherein the heating element is a magnetic body.8. The CO2 concentration reducing device according to claim 7 ,wherein the magnetic ...

CARBON DIOXIDE ADSORBENT AND CARBON DIOXIDE PROCESSING SYSTEM

A carbon dioxide adsorbent including silica gel and an amine compound carried by the silica gel. The silica gel has a spherical shape, a particle size ranging from 1 mm to 5 mm inclusive, an average pore diameter ranging from 10 nm to 100 nm inclusive, a pore volume ranging from 0.1 cm/g to 1.3 cm/g inclusive, and a waterproof property N that is defined by an expression (1) and that is not lower than 45%, 1. A carbon dioxide adsorbent comprisingsilica gel andan amine compound that is carried by the silica gel,{'sup': 3', '3, 'claim-text': {'br': None, 'i': N', 'W/W, 'sub': '0', '=()×100\u2003\u2003(1)'}, 'wherein the silica gel has: (i) a spherical shape, (ii) a particle size ranging from 1 mm to 5 mm inclusive, (iii) an average pore diameter ranging from 10 nm to 100 nm inclusive, (iv) a pore volume ranging from 0.1 cm/g to 1.3 cm/g inclusive, and (v) a waterproof property N that is defined by an expression (1) and that is not lower than 45%,'}whereN is the waterproof property in percentage (%) of the silica gel,{'sub': '0', 'Wis a total number of particles of the silica gel immersed in water,'}{'sub': '0', 'W is a number of particles of the silica gel not subjected to breakage out of W.'}2. The carbon dioxide adsorbent according to claim 1 , wherein the amine compound is at least one compound selected from a group of amines having at least one hydroxyl group and polyamines.3. The carbon dioxide adsorbent according to claim 1 , whereinthe silica gel has an average pore diameter in a range of from 10 nm to less than 100 nm, andthe amine compound is an amine compound that reversibly desorbs carbon dioxide.4. The carbon dioxide adsorbent according to claim 1 , wherein the silica gel has an average pore diameter in a range of from 10 nm to 80 nm.5. A carbon dioxide processing system comprising an adsorption vessel including a moving bed claim 1 , the moving bed being formed in an interior of the adsorption vessel by the carbon dioxide adsorbent according to claim 1 , ...

Metal-Organic Frameworks For Carbon Dioxide Capture

The present application relates to absorbents comprising tetraamine ligands grafted onto metal-organic frameworks and a method for using same for CO2 capture from fossil fuel combustion sources to reduce emissions. In particular, this application relates to capturing >90% by volume, preferable >99% by volume, CO2 emissions such that the emissions are negative, essentially removing CO2 from the combustion air. 2. The method of claim 1 , wherein the tetraamine functionalized metal organic framework comprises a plurality of divalent cations and a plurality of polytopic organic linkers.3. The method of claim 2 , wherein each divalent cation in the plurality of divalent cations is Mg claim 2 , Ca claim 2 , Mn claim 2 , Cr claim 2 , Fe claim 2 , Co claim 2 , Ni claim 2 , Cu claim 2 , Zn or a combination thereof.4. The method of wherein the divalent cation in the plurality of divalent cations is Mg.5. The method of claim 2 , wherein the plurality of polytopic organic linkers comprise 4 claim 2 ,4′-dioxidobiphenyl-3 claim 2 ,3′-dicarboxylate (dobpdc) claim 2 , 4 claim 2 ,4″-dioxido-[1 claim 2 ,1′:4′ claim 2 ,1″-terphenyl]-3 claim 2 ,3″-dicarboxylate (dotpdc) claim 2 , 2 claim 2 ,5-dioxidobenzene-1 claim 2 ,4-dicarboxylate (dobdc) claim 2 , or 3 claim 2 ,3′ dioxide-biphenyl-4 claim 2 ,4′-dicarboxylate (para-carboxylate-dobpdc).6. The method of claim 2 , wherein the tetraamine functionalized metal organic framework comprises N claim 2 ,N′-(propane-1 claim 2 ,3-diyl)bis(propane-1 claim 2 ,3-diamine); N claim 2 ,N′-(butane-1 claim 2 ,4-diyl)bis(propane-1 claim 2 ,3-diamine); N claim 2 ,N′-(ethane-1 claim 2 ,2-diyl)bis(propane-1 claim 2 ,3-diamine); N claim 2 ,N′-(propane-1 claim 2 ,3-diyl)bis(ethane-1 claim 2 ,2-diamine); or N claim 2 ,N′-(ethane-1 claim 2 ,2-diyl)bis(ethane-1 claim 2 ,2-diamine).7. The method of claim 6 , wherein the tetraamine functionalized metal organic framework comprises N claim 6 ,N′-(propane-1 claim 6 ,3-diyl)bis(propane-1 claim 6 ,3-diamine) or N claim ...

METHOD FOR REUSING ZEOLITE ADSORBENT AND REGENERATED ADSORBENT

Provided is a method for reusing an adsorbent which can stably exhibit purification ability by regenerating a used absorbent, in order to keep the composition of a purified syngas constant. 1. A method for regenerating a zeolite adsorbent which adsorbs a carbon dioxide gas from a syngas comprising the carbon dioxide gas and reduces the concentration of the carbon dioxide gas in the syngas , comprising:a step of recovering a used zeolite adsorbent;a step of calcining the used zeolite adsorbent at a temperature of 300° C. to 600° C. in an oxygen atmosphere to produce a regenerated zeolite adsorbent; anda step of reusing the regenerated zeolite adsorbent.2. The method according to claim 1 , whereinthe zeolite adsorbent is used in a pressure swing adsorption apparatus.3. The method according to claim 1 , whereinthe amount of carbon compound attached to the regenerated zeolite adsorbent is 1.0 mass % or less in terms of carbon atoms, with respect to the zeolite adsorbent, andthe amount of sulfur compound attached to the regenerated zeolite adsorbent is 0.01 mass % to 0.8 mass % in terms of sulfur atoms, with respect to the zeolite adsorbent.4. The method according to claim 1 , whereinthe syngas comprises a tar component.5. The method according to claim 1 , whereinthe zeolite adsorbent comprises an LSX type zeolite.6. The method according to claim 1 , whereinthe syngas comprises carbon monoxide, hydrogen, and nitrogen.7. The method according to claim 1 , whereinthe syngas is derived from MSW.8. A regenerated zeolite adsorbent obtained by regenerating a used zeolite adsorbent claim 1 , whereina carbon compound and a sulfur compound are attached to the regenerated zeolite adsorbent, and whereinthe attached amount of the carbon compound is 1.0 mass % or less in terms of carbon atoms, with respect to the zeolite adsorbent, andthe attached amount of the sulfur compound is 0.01 to 0.8 mass % in terms of sulfur atoms, with respect to the zeolite adsorbent.9. The regenerated ...

Carbon Dioxide Separation/Recovery Device, Combustion System Using Same, Thermal Power Generation System Using Same, and Method for Separating and Recovering Carbon Dioxide

A carbon dioxide separation/recovery device for separating and recovering carbon dioxide from a gas to be processed and containing nitrogen oxides and carbon dioxide by using a carbon dioxide scavenger, including a carbon dioxide trapping unit having the carbon dioxide scavenger, in which the carbon dioxide trapping unit includes: a gas flow inlet which introduces the gas to be processed; a heating unit of heating a scavenger heating gas used upon desorption of carbon dioxide trapped by the carbon dioxide scavenger to a predetermined temperature; a cooling gas introduction port which introduces a scavenger cooling gas used when cooling the carbon dioxide scavenger; and a moisture mixing part which adds moisture to a gas for nitrogen oxide desorption used in desorption of nitrogen oxides from the carbon dioxide scavenger. Consequently, NOx accumulated to the carbon dioxide scavenger is desorbed, thereby capable of suppressing lowering in the performance of the carbon dioxide scavenger and reducing the running cost. 1. A carbon dioxide separation/recovery device for separating and recovering carbon dioxide from a gas to be processed containing nitrogen oxide and carbon dioxide by using a carbon dioxide scavenger , comprising a carbon dioxide trapping unit having the carbon dioxide scavenger ,wherein the carbon dioxide trapping unit includes:a gas flow inlet which introduces the gas to be processed;a heating unit of heating a scavenger heating gas used upon desorption of carbon dioxide trapped by the carbon dioxide scavenger to a predetermined temperature;a cooling gas introduction port which introduces a scavenger cooling gas used when cooling the carbon dioxide scavenger; anda moisture mixing part which adds moisture to a gas for nitrogen oxide desorption used in desorption of nitrogen oxides from the carbon dioxide scavenger.2. The carbon dioxide separation/recovery device according to claim 1 ,wherein the carbon dioxide scavenger contains a cerium oxide.3. The ...

Regeneration of olefin treating adsorbents for removal of oxygenate contaminants

Processes for eliminating oxygenates and water from a light hydrocarbon processing system, wherein oxygenates are removed from a light hydrocarbon stream by adsorption of the oxygenates on an oxygenate adsorption unit to provide a deoxygenated hydrocarbon stream, the oxygenate adsorption unit is regenerated via a regenerant stream to provide an oxygenated regenerant stream comprising the oxygenates, and the oxygenated regenerant stream is subjected to hydro-deoxygenation to convert the oxygenates into paraffins and water, wherein the water may also be permanently removed from the system.

Adsorbent for contaminant removal from c4 hydrocarbons

A process is provided for removing contaminants from olefin containing C 4 streams. The streams are contacted with an X based zeolite adsorbent comprising greater than 88% X zeolite at a SiO 2 /Al 2 O 3 ratio of less than 2.5 and an alkali metal salt present in excess of an amount required to achieve full exchange of cation sites on the X based zeolite. The resulting alkali oxide on a volatile free basis is less than 1% (by mass) of the X based adsorbent. The contaminants that are removed include sulfur, oxygenate, and nitrogen based contaminants.

Humidity Control Element and Method for Using the Same

A humidity control element includes a plurality of flat plate members stacked in a state where a first flow path or a second flow path is formed in each space between the flat plate members. Heat is exchangeable between the first flow path and the second flow path via the flat plate members. Each of the flat plate member is formed of any one material of a resin, paper, glass, a metal, and a ceramic, a metal organic framework MIL-101 (Cr) containing chromium as a metal is held on any one of an inner surface of the first flow path and an inner surface of the second flow path, and a switching time between a dehumidification operation and a regeneration operation is relatively long. 1. A humidity control element comprising:a plurality of flat plate members that are stacked in a state where a first flow path through which a first fluid flows or a second flow path through which a second fluid flows is formed in each space between the flat plate members,wherein the first flow path and the second flow path are set in a stacking direction of the flat plate members,heat is exchangeable between the first flow path and the second flow path via the flat plate members,each of the plurality of flat plate members is formed of any one material of a resin, paper, glass, a metal, and a ceramic, or a composite material obtained by combining two or more materials selected from these materials, anda dehumidifying flow path is formed in which a metal organic framework MIL-101 (Cr) containing chromium as a metal is held, as a hygroscopic material adsorbing and desorbing moisture, on any one of an inner surface of the first flow path and an inner surface of the second flow path.2. The humidity control element according to claim 1 ,wherein relating to a dehumidification amount of the dehumidifying flow path in a dehumidification operation in which a fluid to be dehumidified flows into the dehumidifying flow path and flows out from the dehumidifying flow path, and an element height in the ...

Systems and Methods for Separating Radium from Lead, Bismuth, and Thorium

Systems for separating Ra from a mixture comprising at least Ra, Pb, Bi, and Th are provided. The systems can include: a first vessel housing a first media and Th or Bi; a second vessel in fluid communication with the first vessel, the second vessel housing a second media and Pb; and a third vessel in fluid communication with the second vessel, the third vessel housing a third media and Ra, wherein at least one of the first, second, or third medias are different from the other media. 1. A system for separating Ra from a mixture comprising at least Ra , Pb , Bi , and Th , the system comprising:a first vessel housing a first media and either Pb or Bi and/or Th; anda second vessel in fluid communication with the first vessel, the second vessel housing a second media and Ra, wherein the first media is different from the second media.2. The system of wherein the first media is associated with Bi and/or Th and comprises a quaternary amine on a polystyrene divinylbenzene copolymer.3. The system of wherein the second media is associated with Ra and comprises a silica support.4. The system of wherein the first media is associated with Pb and comprises 18-crown-6 and 1-octanol on Amberchrom CG-71 polymer support.5. The system of wherein the second media is associated with Ra comprises a on silica support.6. The system of wherein the first media size is less than 100 μm.7. The system of wherein the second media size is greater than 100 μm.8. A system for separating Ra from a mixture comprising at least Ra claim 1 , Pb claim 1 , Bi claim 1 , and Th claim 1 , the system comprising:a first vessel housing a first media and Th and/or Bi; anda second vessel in fluid communication with the first vessel, the second vessel housing a first media and Pb, wherein the first media is different from the second media.9. The system of wherein the first vessel is in fluid communication with raw material supply.10. The system of wherein the first vessel is in fluid communication with a wash ...

Method of Using Cyclodextrin-Based Metal Organic Frameworks

This disclosure relates to a method that includes (1) contacting a solvent with a porous cyclodextrin-based metal organic framework (CD-MOF) adsorbed with COto release CO, and (2) collecting the released CO. The CD-MOF includes at least a metal cation and a plurality of cyclodextrin components. 1. A method , comprising:{'sub': 2', '2, 'contacting a solvent with a porous cyclodextrin-based metal organic framework (CD-MOF) adsorbed with COto release CO, the CD-MOF comprising at least a metal cation and a plurality of cyclodextrin components; and'}{'sub': '2', 'collecting the released CO.'}2. The method of claim 1 , wherein the CD-MOF adsorbed with COcomprises at least about 4% by weight of CO.3. The method of claim 1 , wherein the CD-MOF adsorbed with COcomprises at most about 10% by weight of CO.4. The method of claim 1 , wherein the solvent is Calcohol claim 1 , Calkane claim 1 , methylene chloride claim 1 , water claim 1 , acetone claim 1 , acetic acid claim 1 , acetonitrile claim 1 , benzene claim 1 , toluene claim 1 , dimethylformamide claim 1 , or a mixture thereof.5. The method of claim 1 , wherein the solvent is saturated with CO.6. The method of claim 1 , wherein the solvent is in the form of a liquid or a vapor.7. The method of claim 1 , wherein the cyclodextrin is γ-cyclodextrin.8. The method of claim 1 , wherein the metal cation is a Group I metal cation claim 1 , a Group II metal cation claim 1 , or a transition metal cation.9. The method of claim 8 , wherein the metal cation is Na claim 8 , K claim 8 , Rb claim 8 , or CS.10. The method of claim 1 , wherein claim 1 , prior to the contacting step claim 1 , the method further comprises disposing a CD-MOF in a gas comprising at least about 0.04% by volume of COto form the CD-MOF adsorbed with CO.11. The method of claim 10 , wherein the gas comprises at most about 25% by volume of CO.12. The method of claim 10 , further comprising transferring the CD-MOF adsorbed with COinto a regeneration vessel prior to the ...

Method of scavenging hydrogen sulfide and mercaptans using well treatment composites

Hydrogen sulfide and mercaptans may be removed from a fluid or gaseous stream by introducing a composite to the fluid or gaseous stream containing a hydrogen sulfide scavenger adsorbed onto a water-insoluble adsorbent.

ORGANIC SILICA THIN FILM, METHOD FOR PRODUCING THE SAME, LASER DESORPTION/IONIZATION MASS SPECTROMETRIC SUBSTRATE USING THE SAME, AND LASER DESORPTION/IONIZATION MASS SPECTROMETRIC METHOD

An organic silica thin film including: organic silica having a light absorbable organic group in a skeleton, wherein the organic group has a local maximum absorption wavelength in a wavelength range of 200 to 1200 nm, a content ratio of silicon and the organic group which constitute the organic silica is in a range of 0.05 to 0.50 based on a ratio of a mass of the silicon to a mass of the organic group ([mass of the silicon]/[mass of the organic group]), the thin film has a textured structure, and an axis direction of the textured structure is a direction substantially perpendicular to a surface opposite to a surface of the organic silica thin film having the textured structure formed therein. 1. An organic silica thin film comprising:organic silica having a light absorbable organic group in a skeleton, whereinthe organic group has a local maximum absorption wavelength in a wavelength range of 200 to 1200 nm,a content ratio of silicon and the organic group which constitute the organic silica is in a range of 0.05 to 0.50 based on a ratio of a mass of the silicon to a mass of the organic group ([mass of the silicon]/[mass of the organic group]),the thin film has a textured structure, andan axis direction of the textured structure is a direction substantially perpendicular to a surface opposite of the organic silica thin film to a surface thereof having the textured structure formed therein.2. The organic silica thin film according to claim 1 , whereinthe organic group has a local maximum absorption wavelength in a wavelength range of 200 to 600 nm.3. The organic silica thin film according to claim 1 , whereinthe organic silica thin film is a porous film having a textured structure in which dent parts are formed of column-shaped pores or a thin film having a textured structure formed of a pillar array in which bump parts are formed of column-shaped bodies and the column-shaped bodies are arranged.4. A method for producing an organic silica thin film claim 1 , ...

Systems and methods for onsite sorbent material reuse

Methods, sorbent cartridges and cleaning devices are disclosed for refurbishing sorbent materials. In one implementation among multiple implementations, a medical fluid delivery method includes: providing a sorbent cartridge including H + ZP within a casing for a treatment; and after the treatment, refurbishing the H + ZP while maintained within the casing via (i) regenerating the non-disinfected H + ZP by flowing an acid solution through the casing, (ii) rinsing the regenerated H + ZP while maintained within the casing, (iii) disinfecting the regenerated and rinsed H + ZP by flowing a disinfecting agent through the casing, and (iv) rinsing the regenerated and disinfected H + ZP while maintained within the casing. Multiple batch sorbent refurbishing implementations are also disclosed.

Methods of Synthesizing and Recycling Metal-Organic Framework Systems

Provided herein are methods of novel methods of synthesizing a metal-organic framework system by vapor-phase appending of a plurality of ligands appended to a metal-organic framework. Also, provided are methods of recycling metal-organic framework systems by detaching the ligand and re-appending the same ligand or appending a different ligand to the metal-organic framework to provide a recycled or repurposed metal-organic framework system.

Advanced adsorption processes for separation of bio-derived products

Disclosed herein are methods for the recovery of target bio-based products using a sorption-based technology with a mixed elution solvent optimized for minimized downstream distillation energy input.

Activated Carbon And Coal Combustion Residue Treatment System And Method

A method for treating powdered activated carbon (PAC) and/or coal combustion residues (CCRs) by heating at least one of a spent PAC and/or a CCR to separate at least one heavy metal from the at least one of the spent PAC and/or the CCR to create a clean stream and a heavy metal stream, combining the heavy metal stream with a water soluble alkaline-earth metal sulfide to create a combined stream, and removing at least a portion of the at least one heavy metal from the combined stream. The heating may further include heating the at least one of the spent PAC and/or the CCR in an inert atmosphere. Further, the combining may include combining the heavy metal stream with the water soluble alkaline-earth metal sulfide and a catalyst and/or a surfactant or hyperdispersant. 1. A method for treating powdered activated carbon (PAC) and/or coal combustion residues (CCRs) , comprising:heating at least one of a spent PAC and/or a CCR to separate at least one heavy metal from the at least one of the spent PAC and the CCR to create a clean stream and a heavy metal stream;combining the heavy metal stream with a water soluble alkaline-earth metal sulfide to create a combined stream; andremoving at least a portion of the at least one heavy metal from the combined stream.2. The method of claim 1 , further comprising collecting at least one of the spent PAC and/or the CCR from an industrial process.3. The method of claim 1 , further comprising providing the water soluble alkaline-earth metal sulfide.4. The method of claim 1 , wherein the combining step includes combining a catalyst with the heavy metal stream.5. The method of claim 1 , wherein the combining step includes combining a surfactant or hyperdispersant with the heavy metal stream.6. The method of claim 1 , wherein the heating step includes heating at least one of the spent PAC and/or the CCR in an inert atmosphere.7. The method of claim 1 , further comprising allowing the at least one of the spent PAC and/or the CCR to ...

METHOD FOR REGENERATING A USED SORBENT HAVING A GAS ADSORBATE ADSORBED THERETO

The invention relates to methods for regenerating a used sorbent having a gas adsorbate adsorbed thereto. In particular, the used sorbent comprises liquid marbles. The liquid in the liquid marbles is comprised of a material or mixture of materials that selectively removes unwanted gaseous component in the gas to be purified. 1. A method for regenerating a used sorbent having a gas adsorbate adsorbed thereto , comprising exposing the used sorbent to dielectric heating wherein the used particles and/or a mixture of a plurality of particles encapsulating at least one type of liquid therein2. The method according to claim 1 , wherein exposing the used sorbent to dielectric heating comprises exposing the used sorbent to microwave radiation claim 1 ,3. The method according to claim 2 , when the used sorbent is exposed to microwave radiation in microwave synthesizer.4. The method according to claim 3 , wherein the microwave synthesizer is configured to operate at 100 to 1 claim 3 ,200 Watts.5. The method according to claim 4 , wherein the microwave synthesizer is configured to operate at 500 to 1 claim 4 ,200 Watts.6. (canceled)7. The method according to claim 2 , wherein the used sorbent is exposed to microwave radiation for 3 hours or less.8. The method according to claim 7 , wherein the used sorbent is exposed to microwave radiation for 1 hour or less.9. The method according to wherein the used sorbent is exposed to microwave radiation for an interval of 10-30 seconds.10. The method according to claim 2 , wherein the used sorbent is exposed to microwave radiation at 90-150° C.11. The method according to claim 10 , wherein the used sorbent is exposed to microwave radiation at 90-120° C.12. The method according to claim 2 , wherein the used sorbent is exposed to microwave radiation in the absence of an inert purge gas.13. (canceled)14. The method according to claim 1 , wherein the gas adsordate comprises natural gas claim 1 , flue gas claim 1 , carbon monoxide claim 1 , ...

Method for reclaiming used superabsorbent polymer

A method enabling a used superabsorbent polymer recovered from used absorbent, etc., to be readily and inexpensively recovered without using acids or alkalies. The used superabsorbent polymer is treated with an aqueous solution of a multivalent metal salt such as calcium chloride, etc., the superabsorbent polymer treated with the aqueous solution of a multivalent metal salt is treated with an aqueous solution of an alkaline metal salt such as sodium chloride, etc., the superabsorbent polymer treated with the aqueous solution of an alkaline metal salt is washed with water, and the superabsorbent polymer washed with water is then dried.

REGENERABLE SORBENT FOR CARBON DIOXIDE REMOVAL

A mixed salt composition adapted for use as a sorbent for carbon dioxide removal from a gaseous stream is provided, the composition being in solid form and including magnesium oxide, an alkali metal carbonate, and an alkali metal nitrate, wherein the composition has a molar excess of magnesium characterized by a Mg:X atomic ratio of at least about 3:1, wherein X is the alkali metal. A process for preparing the mixed salt is also provided, the process including mixing a magnesium salt with a solution comprising alkali metal ions, carbonate ions, and nitrate ions to form a slurry or colloid including a solid mixed salt including magnesium carbonate; separating the solid mixed salt from the slurry or colloid to form a wet cake; drying the wet cake to form a dry cake including the solid mixed salt; and calcining the dry cake to form a mixed salt sorbent. 1. A method for removing carbon dioxide from a gaseous stream , comprising contacting a gaseous stream containing carbon dioxide with a sorbent material comprising a mixed salt composition in solid form comprising:i) magnesium oxide;ii) an alkali metal carbonate; andiii) an alkali metal nitrate, wherein the composition has a molar excess of magnesium characterized by a Mg:X atomic ratio of at least about 1.1:1, wherein X is the alkali metal.2. The method of claim 1 , wherein the contacting step occurs at a temperature of about 100° C. to about 450° C.3. The method of claim 1 , wherein the contacting step occurs at a temperature of about 250° C. to about 375° C.4. The method of claim 1 , wherein the carbon dioxide pressure in the gaseous stream is about 1 to about 300 psia.5. The method of claim 1 , wherein the carbon dioxide pressure in the gaseous stream is less than about 5 psia.6. The method of claim 1 , wherein the sorbent material is contained within a fixed bed or fluidized bed absorber.7. The method of claim 1 , further comprising the step of regenerating the sorbent material using pressure-swing absorption claim ...

Process to Recycle and Reuse Trona and Coal Combustion Byproducts in a Coal-Fired Power Plant

A process is developed wherein sodium carbonate is reclaimed from Trona-treated fly ash waste stream, and the fly ash rendered suitable for use as a Pozzolan. The process is a closed system wherein all separated aspects of the waste stream are reused by the generating power plant or offered as a commercial product. 1. A process whereby Trona-treated fly ash is beneficiated by water washing1.a) results in the removal of Cenospheres by flotation separation1.b) results in the removal of iron-laden particles by wet magnetic separation1.c) results in the removal of carbon-laden particles by froth flotation2. A process whereby Trona-treated fly ash is beneficiated by the removal of sodium contaminants2.a) results in the removal of arsenic and selenium by use of reducing or oxidizing agents2.b) results in the precipitation of sulfates and sulfites by addition of calcium chloride2.c) salt brine after precipitation is useable as ice control media3. A process whereby Trona , represented as sodium carbonates , is reclaimed from Trona-treated fly ash3.a) results in capture of sodium carbonate through Solvay process. This application claims the benefit of U.S. Provisional Application No. 62/216,856, 10 Sep., 2015Fly ash beneficiation process, U.S. Pat. No. 4,121,945 A, Apr. 16, 1978, Vernon J. Hurst & Robert W Styron (Inventors)Method of removing carbon from fly ash, U.S. Pat. No. 6,068,131 A, Jul. 13, 1999, Robert W. Styron & Jiann-Yang Hwang (Inventors)Coal fly ash is produced by the combustion of pulverized coal at high boiler temperatures in modern electric power generating plants. Coal combusted in these facilities produces a combustion residual (ash) that is normally formed as both: coarse aggregate ‘bottom ash’ captured and removed from the bottom of the units; and fine particulate ‘fly ash’ removed from the flue gas stream via electrostatic precipitation or bag houses. The fly ash is fused into particles partially consisting of glass beads and spheroids. Most fly ash has ...

Modified Walnut Shell and Use

Herein are described compositions useful in the purification of hydrocarbon-contaminated liquids (e.g., oil-contaminated water), methods of their manufacture, and methods of their use. In one instance, the composition can include a porous agricultural substrate selected from the group consisting of walnut shell, pecan shell, apricot pit, peach pit, corn cob, and a mixture thereof; the porous agricultural substrate having an external surface and pores, wherein the external surface is hydrophilic; and an organo-amine carried within the pores of the porous agricultural substrate. These compositions are utilized as regenerable filter media in place of, for example, ground walnut media.

METHOD FOR REGENERATION OF SOLID AMINE CO2 CAPTURE BEDS

A carbon dioxide capture system includes a solid sorbent material including an amine. A base solution is in communication with the sorbent material when the amine becomes deactivated. The base solution is removed from the sorbent material when the amine is regenerated by the base solution. 1. A carbon dioxide capture system comprising:a solid sorbent material comprising an amine;a base solution in communication with the sorbent material when the amine becomes deactivated; andthe base solution being removed from the sorbent material when the amine is regenerated by the base solution.2. The carbon dioxide capture system of claim 1 , wherein the solid sorbent material comprises the amine applied to a substrate via a covalent linkage.3. The carbon dioxide capture system of claim 1 , wherein the amine is selected from the group consisting of claim 1 , a primary claim 1 , a secondary claim 1 , a tertiary amine claim 1 , and combinations thereof.4. The carbon dioxide capture system of claim 1 , wherein the amine is selected from the group consisting of claim 1 , diethanolamine (DEA) claim 1 , diisopropanolamine (DIPA) claim 1 , and 2-hydroxyethyl piperazine (HEP).5. The carbon dioxide capture system of claim 1 , wherein the base solution is selected from the group consisting of solutions of NaOH claim 1 , KOH claim 1 , NaCOand KCOand slurries of CaO.6. The carbon dioxide capture system of claim 1 , wherein the base solution comprises NaOH having a concentration of 1-50 wt %.7. The carbon dioxide capture system of claim 1 , wherein the base solution comprises NaOH having a concentration of 1-10 wt %.8. The carbon dioxide capture system of claim 1 , wherein the base solution comprises KOH having a concentration of 1-50 wt %.9. The carbon dioxide capture system of claim 1 , wherein the base solution comprises KOH having a concentration of 1-10 wt %.10. The carbon dioxide capture system of claim 1 , comprising a water supply in communication with the solid sorbent material ...

MULTI-STAGE ACTIVATED CARBON SYSTEMS AND PROCESSES WITH RECYCLED STREAMS

There are provided herein methods and systems for increasing efficiency in a multi-stage activated carbon system. The methods and systems provide a cleaned carbon solids fraction and a waste liquor from wet air regeneration, and direct the same to a second stage and a first stage, respectively, of the multi-stage activated carbon system to enhance removal efficiency therein. 1. A method for treating wastewater comprising:treating an amount of wastewater in a powdered activated carbon treatment (PACT) system comprising a first stage and at least a second stage, each stage comprising an amount of powdered activated carbon therein, wherein the treating removes at least one contaminant from the wastewater and produces a spent carbon material;directing an amount of the spent carbon material to a wet air regeneration system (WAR) for regeneration of the spent carbon material;separating an effluent from the WAR system into a cleaned carbon solids fraction and a waste liquor;directing the cleaned carbon solids fraction to the second stage; and{'b': '108', 'directing the waste liquor to the first stage for use in treating additional wastewater () in the first stage, thereby relieving the second stage from gross pollutant removal and allowing the second stage to serve as a polishing step to remove first stage effluent contaminants.'}2. The method of claim 1 , wherein the separating of the effluent further comprises washing the cleaned carbon solids fraction with an amount of an aqueous wash solution.3. The method of claim 2 , wherein the separating of the effluent from the WAR system is done by vacuum filtration of the effluent to provide the cleaned carbon solids fraction and the waste liquor.4. The method of claim 2 , wherein the separating is done by repeated decanting and redilution of the effluent to provide the cleaned carbon solids fraction and the waste liquor.5. The method of claim 1 , further comprising adding water to the cleaned carbon solids fraction to bring the ...

A Process For Regenerating An Adsorbent For Nitrogen-Containing Compounds Present In A Hydrocarbon Feed

A process for regenerating an adsorbent for nitrogen-containing compounds present in a hydrocarbon feed comprising contacting the adsorbent with an inert gas at a temperature in the range of from 10 to 60° C., followed by contacting the adsorbent with an inert gas at an elevated temperature in the range of from 200 to 260° C. and cooling the adsorbent in an inert gas. 1. A process for regenerating an adsorbent for nitrogen-containing compounds present in a hydrocarbon feed comprising the steps ofa) contacting the adsorbent with a stream comprising an inert gas at a temperature in the range of from 10 to 60° C.;b) followed by contacting the adsorbent with a stream comprising an inert gas at an elevated temperature in the range of from 200 to 260° C.;c) followed by cooling the adsorbent in an inert gas.2. The process according to claim 1 , wherein the inert gas is selected from the group consisting of nitrogen claim 1 , saturated hydrocarbons and mixtures thereof.3. The process of claim 1 , wherein the stream used in steps (a) claim 1 , and (b) comprises at least 96 wt % claim 1 , preferably at least 98 wt % claim 1 , more preferably at least 99 wt % of at least one inert gas claim 1 , preferably nitrogen.4. The process according to claim 1 , wherein the stream used in steps (a) and (b) comprises at least one inert gas claim 1 , typically nitrogen claim 1 , and water claim 1 , said process optionally further comprising contacting the adsorbent from step (b) with an inert gas at a temperature in the range of from 200 to 250° C. in order to remove water from the adsorbent before cooling according to step (c).5. The process according to claim 1 , wherein the steam used in steps (a) and (b) comprises at least 99.5 wt % nitrogen gas and the nitrogen gas resulting from the regeneration may be washed with a hydrocarbon having a low vapor pressure claim 1 , in particular with a hydrocarbon having 8 to 13 carbon atoms or mixture thereof.6. The process according to claim 1 , ...

POROUS CYCLODEXTRIN POLYMERIC MATERIALS AND METHODS OF MAKING AND USING SAME

A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance. 5. The mesoporous polymeric material of claim 2 , wherein the molar ratio of cyclodextrin moieties to aryl moieties ranges from about 1:1 to about 1:X claim 2 , wherein X is three times the average number of glucose subunits in the cyclodextrin moieties.6. The mesoporous polymeric material of claim 2 , wherein the cyclodextrin is selected from the group consisting of α- claim 2 , β- claim 2 , γ-cyclodextrin claim 2 , and combinations thereof.7. The mesoporous polymeric material of claim 2 , wherein the cyclodextrin moieties comprise β-cyclodextrin.8. The mesoporous polymeric material of claim 7 , wherein the cyclodextrin moieties comprise β-cyclodextrin and the ratio of β-cyclodextrin moieties to crosslinking moieties is 1:1 to 1:21.9. The mesoporous polymeric material of claim 2 , wherein the mesoporous polymeric material has a Brunauer-Emmett-Teller (BET) surface area of 50 m/g to 2000 m/g.10. The mesoporous polymeric material of claim 3 , wherein the molar ratio of cyclodextrin moieties to aryl moieties ranges from about 1:1 to about 1:X claim 3 , wherein X is three times the average number of glucose subunits in the cyclodextrin moieties.11. The mesoporous polymeric material of claim 3 , wherein the cyclodextrin is selected from ...

Device For Regenerating Activated Carbon

The invention concerns a device for regenerating activated carbon in the form of porous fibres by electro-Fenton reaction, a method for regenerating activated carbon loaded with organic pollutants using the device of the invention, and the use of a filter consisting of porous fibres of activated carbon, which filter has previously been loaded with organic pollutants by filtration of polluted water or polluted air, as the cathode of an electro-Fenton reaction for regenerating the activated carbon porous fibres loaded with organic pollutants. 2. The device as claimed in claim 1 , wherein the electroactive surface of the cathode comprises at least 90% of the porous activated carbon fibers.3. The device as claimed in or claim 1 , wherein the electroactive surface of the cathode comprises only porous activated carbon fibers.4. The device as claimed in any one of to claim 1 , wherein the porous activated carbon fibers are in the form of fabric.5. The device as claimed in any one of to claim 1 , wherein the porous activated carbon fibers are in the form of felt.6. The device as claimed in any one of to claim 1 , wherein the activated carbon in the form of porous fibers having served as a filter for organic pollutants is saturated with organic pollutants.7. The device as claimed in any one of to claim 1 , wherein the initial supply of Fe ions has a catalytic concentration in the electrolyte solution greater than 10M and less than 10M.8. The device as claimed in any one of to claim 1 , wherein the organic pollutants adsorbed on the porous fibers of the cathode comprise phenol compounds.9. The device as claimed in any one of to claim 1 , wherein the pH is adjusted between 2 and 5 claim 1 , preferably between 2.6 and 3.6.10. The device as claimed in any one of to wherein the diameter of the porous fibers is greater than 0.1 micrometers and less than 1 000 micrometers.11. The device as claimed in any one of to claim 1 , wherein the specific surface area (S) of the porous fibers ...

Recycling of Superabsorbent Polymer Via UV Irradiation In Flow System

Poly(acrylic acid)-based superabsorbent polymer (SAP) in a feed stream is converted with UV irradiation into poly(acrylic acid) (PAA) in a flow system. The UV total energy used to convert SAP into PAA is less than about 50 MJ/kg SAP. 1. A method for degrading a superabsorbent polymer (SAP) to poly(acrylic acid) (PAA) comprising flowing a feed stream comprising said SAP into a UV irradiation zone , irradiating said feed stream with UV , and producing a product stream comprising said PAA at the end of said irradiation zone; wherein said feed stream comprises said SAP at a concentration greater than about 1 wt %; wherein said feed stream has a residence time in said UV irradiation zone of less than about 120 s; and wherein said UV used to convert SAP to PAA requires a UV total energy of less than about 50 MJ/kg SAP.2. The method of claim 1 , wherein said residence time is less than about 60 s.3. The method of claim 1 , wherein said UV total energy is less than about 16 MJ/kg SAP.4. The method of claim 1 , wherein said feed stream comprises SAP and water.5. The method of claim 1 , wherein said feed stream comprises SAP and hydrogen peroxide.6. The method of claim 1 , wherein said SAP has degree of neutralization (DN) greater than about 50%.7. The method of claim 1 , wherein said SAP has DN between about 65% and about 75%.8. The method of claim 1 , wherein said feed stream has a viscosity; wherein said product stream has a viscosity; wherein the ratio of the viscosity of the product stream to the viscosity of the feed stream is the viscosity ratio; and wherein the negative logarithm of said viscosity ratio is less than about 6.9. The method of claim 1 , wherein said feed stream has a viscosity; wherein said product stream has a viscosity; wherein the ratio of the viscosity of the product stream to the viscosity of the feed stream is the viscosity ratio; and wherein the negative logarithm of said viscosity ratio is less than about 4.10. The method of claim 1 , wherein ...

System and Method for Carbon Dioxide Capture and Sequestration

A method for removing carbon dioxide directly from ambient air, using a sorbent under ambient conditions, to obtain relatively pure CO. The COis removed from the sorbent using process heat, preferably in the form of steam, at a temperature in the range of not greater than about 130° C., to capture the relatively pure COand to regenerate the sorbent for repeated use. Increased efficiency can be achieved by admixing with the ambient air, prior to contacting the sorbent, a minor amount of a preferably pretreated effluent gas containing a higher concentration of carbon dioxide. The captured carbon dioxide can be stored for further use, or sequestered permanently. The above method provides purified carbon dioxide for further use in agriculture and chemical processes, or for permanent sequestration. 136-. (canceled)37. A system for cyclically removing carbon dioxide from a CO-laden gas flow selected from ambient air or a blended mixture of a minor portion of carbon dioxide-containing effluent gases with a major portion of carbon dioxide laden ambient air , by adsorbing or binding the COon a sorbent for CO , and capturing the COby stripping the COfrom the sorbent , the system comprising:a contact structure comprising a porous substrate with a surface area along which an amine sorbent is distributed that is capable of reversibly adsorbing, or binding to, carbon dioxide, an air conduit, open at one end to the ambient atmosphere and at a second end to a blending zone, an effluent gas conduit having an inlet and an outlet, the blending zone being also connected to the outlet from the effluent gas conduit, the inlet to the effluent gas conduit being connected to a source of effluent gases, the outlet from the blending zone emptying into the contact structure, the relative flow of effluent gases and ambient air into the blending zone being such as to result in a gas blend comprising not greater than 25% by volume of effluent gases and a blended temperature of not greater than 25 ...

Extracted Lignocellulosic Material as an Adsorbent and Uses Thereof

According to an example aspect of the present invention, there is provided a method of removing dissolved contaminants from an aqueous liquid. The aqueous liquid is contacted with an adsorbent which comprises a finely divided lignocellulosic material, which has been subjected to extraction to remove hemicellulose and/or other components therefrom, to bind at least a portion of the organic compounds to the adsorbent. Furthermore, the invention relates to a method for removing or separating dissolved contaminants from a liquid and to a method for producing a liquid containing hemicellulose and/or an adsorbent containing lignin and/or other components. In particular the invention concerns the use of an adsorbent lignocellulosic material for removing dissolved contaminants from a liquid.

PROCESSES FOR REMOVING CONTAMINANTS FROM A DEHYDROGENATION EFFLUENT

A process for the providing a regenerant gas stream for a regenerable adsorbent used to remove water and hydrogen sulfide from a reactor effluent in a catalytic dehydrogenation process is described. The reactor effluent is compressed in a compressor to provide a compressed effluent. The compressed effluent may be treated to remove chlorides, and then passed to a dryer zone having a regenerable adsorbent. A regenerant gas stream is used to desorb the water and hydrogen sulfide and the spent regenerant stream may be passed to a cleaning zone having a sorbent configured to remove hydrogen sulfide from the spent regenerant stream. The cleaned regenerant gas stream may be recycled to the dryer zone to desorb and/or regenerate the regenerable adsorbent. 1regenerating a regenerable adsorbent with a regenerant gas stream to provide a spent regenerant stream, the spent regenerant stream including water and hydrogen sulfide;removing the hydrogen sulfide from the spent regenerant stream in a regenerant cleaning zone to provide a cleaned regenerant stream, the regenerant cleaning zone including one or more vessels having a solid adsorbent including a metal oxide on a support configured to selectively immobilize hydrogen sulfide; and,regenerating a regenerable adsorbent with at least a portion of the cleaned regenerant stream.. A process for cleaning a regenerant stream, the process comprising: This application is a Division of copending application Ser. No. 14/727,246 filed Jun. 1, 2015, the contents of which are hereby incorporated by reference in its entirety.This invention relates generally to processes for removing contaminants from a dehydrogenation effluent, and more particularly to processes for removing sulfur compounds from same, and even more particularly to processes for treating a regenerant gas used with an adsorbent used to remove sulfur compounds.Catalytic dehydrogenation can be used to convert paraffins to the corresponding olefin, e.g., propane to propene, or ...

WATER COLLECTION DEVICE AND WATER COLLECTION METHOD

An object of the present invention is to provide a water collecting device and a water collecting method each of which makes it possible to efficiently extract water absorbed as moisture in a polymeric moisture-absorbing material. The object is achieved by a water collecting device including: a stimulus applying section for applying an external stimulus which is intended to decrease the affinity with water of a polymeric moisture-absorbing material; and a vibration section for providing vibration to the polymeric moisture-absorbing material having a decreased affinity with water and thereby causing water to be released from the polymeric moisture-absorbing material. 1. A water collecting device comprising:a polymeric moisture-absorbing material containing a stimuli-responsive polymer whose affinity with water changes reversibly in response to an external stimulus;a stimulus applying section for applying an external stimulus so as to decrease the affinity with water of the polymeric moisture-absorbing material; anda vibration section for providing vibration to the polymeric moisture-absorbing material having a decreased affinity with water.2. The water collecting device as set forth in claim 1 , wherein the vibration section is an ultrasonic vibration section for providing ultrasonic vibration to the polymeric moisture-absorbing material.3. The water collecting device as set forth in claim 1 , wherein the stimuli-responsive polymer is porous.4. The water collecting device as set forth in claim 1 , wherein the external stimulus is heat claim 1 , light claim 1 , an electric field claim 1 , or pH.5. A water collecting method comprising the steps of:decreasing affinity with water of a polymeric moisture-absorbing material, by applying an external stimulus to the polymeric moisture absorbing material having absorbed moisture in air, the polymeric moisture-absorbing material containing a stimuli-responsive polymer whose affinity with water changes reversibly in response to ...

METHODS AND SYSTEMS FOR MANAGING GAS PURIFICATION

A method for extending useful life of a sorbent for purifying a gas by sorption of an impurity is provided. The method generating a electrical discharge within the gas to obtain a spectral emission representative of a concentration of the impurity. The method also includes monitoring the concentration of the impurity according to the spectral emission. The method also includes lowering the concentration of the impurity by conversion of at least a portion of the impurity into a secondary impurity having a greater affinity to the sorbent than the impurity. The method also includes comparing the concentration of the impurity to a polluting concentration and managing the sorption of the gas onto the sorbent according to the comparison. 1. A method for extending useful life of a sorbent , the sorbent being for purifying a gas by sorption of an impurity , the method comprising:{'sub': 'i', 'generating an electrical discharge within the gas to obtain a spectral emission representative of a concentration of the impurity C;'}{'sub': 'i', 'monitoring the concentration of the impurity Caccording to the spectral emission;'}{'sub': 'i', 'lowering the concentration of the impurity Cby conversion of at least a portion of the impurity into a secondary impurity having a greater affinity to the sorbent than the impurity; and'}{'sub': i', 'p, 'comparing Cto a polluting concentration C, and managing the sorption of the impurity according to the comparison, comprising{'sub': i', 'p, 'when C Подробнее

MOULDABLE DESICCANT COMPOSITION

A reaction product of a mixture of components suitable for molding into shaped desiccant particles, wherein the mixture includes: 1. Reaction product of a mixture of components suitable for molding into shaped desiccant particles , wherein the mixture comprises:a. a porous siliceous material,b. hygroscopic salt,c. polyvinyl alcohol (PVA) with a degree of hydrolysis between 82 and 95 mol % and a viscosity between 12 and 40 mPa·s, as determined on an aqueous solution of 4% PVA at 20° C. according to DIN53015,d. water,e. optionally, an OH-containing polymer, different from PVA,wherein the weight ratio between hygroscopic salt and the porous siliceous material is chosen between 0.1:1 and 0.9:1 andwherein the weight ratio between hygroscopic salt and PVA is chosen between 1:1 and 5:1.2. The reaction product according to claim 1 , wherein the hygroscopic salt component comprises >70 wt. % CaCl claim 1 , having a purity above 50 wt. %.3. The reaction product according to claim 1 , wherein the OH-containing polymer claim 1 , different from PVA claim 1 , is chosen from the group of hydroxyethyl cellulose claim 1 , starch claim 1 , and polyacrylic acid.4. The reaction product according to claim 1 , wherein the weight ratio in the mixture of components between PVA and the OH-containing polymer claim 1 , different from PVA claim 1 , is between 1:1 and 9:1.5. The reaction product according to claim 1 , wherein the mixture of components comprises:a. 10-30 wt. % hygroscopic salt,b. 1-20 wt. % PVA,c. 30-50 wt. % porous siliceous material, andd. 20-59 wt. % water,relative to the total weight of the mixture of components.6. The reaction product according to claim 1 , wherein the mixture of components comprises OH-containing polymer and the mixture of components comprises:a. 10-30 wt. % hygroscopic salt,b. 1-20 wt. % PVA,c. 30-50 wt. % porous siliceous material,d. 20-58.99 wt. % water ande. 0.01-30 wt. % OH-containing polymer, different from PVA, relative to the total weight of the ...

CATALYTIC OZONE REMOVAL

A method is disclosed for removing ozone from a gas. According to this method, the gas is contacted with an adsorbent that includes a transition metal oxide or metal organic framework to form a treated gas. The treated gas is contacted with a noble metal catalyst to catalytically decompose ozone in the treated gas, thereby forming an ozone-depleted treated gas. 1. A method of removing ozone from a gas , comprising:contacting the gas with an adsorbent comprising a transition metal oxide or metal organic framework to form a treated gas;contacting the treated gas with a noble metal catalyst and catalytically decomposing ozone in the treated gas to form an ozone-depleted treated gas.2. The method of claim 1 , wherein the adsorbent comprises a transition metal oxide.3. The method of claim 2 , wherein the transition metal oxide comprises an oxide of manganese claim 2 , copper claim 2 , cobalt claim 2 , magnesium claim 2 , nickel claim 2 , or combinations comprising any of the foregoing.4. The method of claim 1 , wherein the adsorbent comprises a metal organic framework.5. The method of claim 4 , further comprising regenerating the adsorbent by applying heat.6. The method of claim 4 , wherein the metal organic framework comprises a transition metal or transition metal oxide.7. The method of claim 6 , wherein the metal organic framework comprises a transition metal or oxide of a transition metal selected from manganese claim 6 , copper claim 6 , cobalt claim 6 , magnesium claim 6 , nickel claim 6 , or combinations comprising any of the foregoing.8. An aircraft cabin air system claim 6 , comprisinga compressor that receives and compresses outside air;a first air treatment module comprising an inlet in fluid communication with the compressor, an adsorbent comprising a transition metal oxide or metal organic framework, and an outlet;a second air treatment module comprising an inlet in fluid communication with the first air treatment module outlet, a noble metal catalyst and an ...

PROCESS FOR SEPARATE REMOVAL AND RECOVERY OF HEAVY METALS FROM INDUSTRIAL WASTEWATER

A process for separate removal and recovery of heavy metals from industrial wastewater is provided. The wastewater to be treated flows through adsorbents after filtration and adjustment of a pH to about 3 to 7 to obtain the adsorbents which have adsorbed corresponding heavy-metal ions, which are then eluted from the corresponding adsorbents using an acidic solution such that eluates containing the corresponding heavy-metal ions are obtained. 1. A process for separate removal and recovery of heavy metals from industrial wastewater , comprising the steps of:(a) adjusting the pH of the wastewater to a pH in the range of about 3 to 7 after filtration;(b) discharging the wastewater obtained in said step (a) after flowing the wastewater through adsorbents to obtain the adsorbents which have adsorbed the corresponding heavy-metal ions; and(c) eluting the heavy-metal ions from the corresponding adsorbents obtained in said step (b) using an acidic solution such that eluates containing the corresponding heavy-metal ions are obtained.2. The process of claim 1 , wherein at least two different kinds of adsorbents claim 1 , which adsorb different kinds of heavy-metal ions claim 1 , are provided.3. The process of claim 2 , wherein the industrial wastewater obtained in said step (a) flows through the at least two different kinds of adsorbents in series.4. The process of claim 2 , wherein the number of the adsorbents of the same kind is at least 3.5. The process of claim 1 , wherein the wastewater obtained in said step (a) flows through a plurality of adsorption paths in parallel claim 1 , and the number of the adsorption paths in parallel is at least 2.6. The process of claim 1 , wherein the adsorbents are ion-imprinted polymers.7. The process of claim 1 , wherein the acidic solution in said step (c) is a hydrochloric acid solution and/or a nitric acid solution.8. The process of claim 1 , wherein a ratio of the volume (ml) of the acidic solution to the mass (g) of the corresponding ...

METHOD FOR RECYCLING SUPERABSORBENT POLYMER DERIVED FROM USED ABSORBENT ARTICLE AND RECYCLED SUPERABSORBENT POLYMER DERIVED FROM USED ABSORBENT ARTICLE

A method of recycling superabsorbent polymers derived from a used absorbent article, the method including: treating the superabsorbent polymers with ozone water after inactivation; reactivating, with an alkaline aqueous solution, the superabsorbent polymers treated with the ozone water; and adding hydrophilic fine particles to the superabsorbent polymers reactivated with the alkaline aqueous solution and then drying the superabsorbent polymers. 1. A method of recycling superabsorbent polymers derived from a used absorbent article , the method comprising:treating the superabsorbent polymers with ozone water after inactivation;reactivating, with an alkaline aqueous solution, the superabsorbent polymers treated with the ozone water; andadding hydrophilic fine particles to the superabsorbent polymers reactivated with the alkaline aqueous solution and then drying the superabsorbent polymers.2. The method according to claim 1 , further comprising:after the reactivating of the superabsorbent polymers and before the adding of the hydrophilic fine particles, dehydrating and washing the superabsorbent polymers with an organic solvent.3. The method according to claim 1 , whereinthe reactivating of the superabsorbent polymers includes:dehydrating and washing the superabsorbent polymers while reactivating the superabsorbent polymers with an aqueous solution containing an organic solvent and an alkali metal ion supply source supplying an alkali metal ion.4. The method according to claim 1 , further comprising:inactivating the superabsorbent polymers with an inactivating agent, whereinin the treating of the superabsorbent polymers, the superabsorbent polymers inactivated with the inactivating agent are treated with the ozone water.5. The method according to claim 4 , whereinthe inactivating agent contains an acidic aqueous solution.6. The method according to claim 1 , whereinthe hydrophilic fine particles include silica fine particles.7. The method according to claim 1 , ...

Dehumidifying unit, layered temperature control dehumidifying element, drying device and method for temperature controlling the same

A dehumidifying unit, a layered temperature control dehumidifying element, a drying device and a temperature control method thereof are provided. The dehumidifying element has a plurality of dehumidifying units. The dehumidifying units are made of a direct heating desorption material and used for dehumidifying air by adsorption and capable of being regenerated by desorption. By performing temperature compensation through a preheater and performing a layered temperature control method on the dehumidifying element, the disclosure achieves a uniform temperature control on the air flow passage of the dehumidifying element so as to improve regeneration performance of the dehumidifying element and reduce energy consumption of the drying device.

Process to Decouple Regeneration Gas Compressor from Regeneration Gas Treating

A method for continuously treating a regeneration gas stream used to regenerate a molecular sieve adsorption vessel is disclosed. The regeneration gas stream is cooled in a cooler to a temperature suitable to condense liquids therein. A separator removes liquids condensed in the regeneration gas stream. The regeneration gas stream is compressed in a compressor. The regeneration gas stream is flowed through the cooler, the separator, and the compressor when the compressor is operational. The regeneration gas stream is flowed through the second cooler and the second separator but not the compressor when the compressor is not operational, thereby enabling continuous treatment of the regeneration gas stream. 1. A method for continuously treating a regeneration gas stream used to regenerate a molecular sieve adsorption vessel , comprising:cooling the regeneration gas stream in a cooler to a temperature suitable to condense liquids in the regeneration gas stream;in a separator, removing liquids condensed in the regeneration gas stream;compressing the regeneration gas stream in a compressor;flowing the regeneration gas stream through the cooler, the separator, and the compressor when the compressor is operational; andflowing the regeneration gas stream through the cooler and the separator but not the compressor when the compressor is not operational, thereby enabling continuous treatment of the regeneration gas stream.2. The method of claim 1 , wherein the cooler is a first cooler and the separator is a second separator claim 1 , and further comprising:cooling the regeneration gas stream in a second cooler to remove at least part of the heat added to the regeneration gas stream when the regeneration gas stream is compressed by the compressor;in a second separator, removing liquids condensed in the second cooler;arranging the second cooler, the second separator, and the compressor between first and second isolation valves;opening the first and second isolation valves when ...

SELECTIVE, ADSORBATE-INDUCED SPIN STATE CHANGES IN TRANSITION METAL-BASED METAL-ORGANIC FRAMEWORKS

An adsorbate-selective metal organic framework includes a transition metal; and a plurality of organic molecules coordinated to the transition metal so as to preserve open coordination sites for selectively adsorbing molecules that have low-lying π* orbitals. The transition metal has a lowest energy spin state in the presence of the selectively adsorbed molecules that are strongly bonding to the transition metal through π-donating interactions which is different than the lowest energy spin state in the absence of these adsorbed molecules. The transition metal has also a lowest energy spin state in the presence of non-selected molecules that are weakly bonding to the transition metal through σ- and/or π-accepting and/or donating interactions. 2. The adsorbate-selective metal organic framework according to claim 1 , wherein said transition metal is switchable to a higher energy spin state by controlling a temperature or a pressure claim 1 , or both in said adsorbate selective metal organic framework to enable desorption of said selectively adsorbed molecules.3. The adsorbate-selective metal organic framework according to claim 2 , wherein said transition metal is switchable to a higher energy spin state by increasing the temperature or lowering the pressure claim 2 , or both in said adsorbate selective metal organic framework to enable desorption of said selectively adsorbed molecules.4. The adsorbate-selective metal organic framework according to claim 1 , wherein said transition metal is selected from the group of transition metals consisting of vanadium claim 1 , chromium claim 1 , manganese claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , and copper.5. The adsorbate-selective metal organic framework according to claim 1 , wherein said transition metal is iron.7. The adsorbate-selective metal organic framework according to claim 1 , wherein said transition metal is iron claim 1 , and wherein said plurality of organic molecules are one of HBTTri claim 1 , ...

METHODS AND SYSTEMS FOR PERFORMING CHEMICAL SEPARATIONS

The present disclosure provides a method for generating higher hydrocarbon(s) from a stream comprising compounds with two or more carbon atoms (C), comprising introducing methane and an oxidant (e.g., O) into an oxidative coupling of methane (OCM) reactor. The OCM reactor reacts the methane with the oxidant to generate a first product stream comprising the C compounds. The first product stream can then be directed to a separations unit that recovers at least a portion of the C compounds from the first product stream to yield a second product stream comprising the at least the portion of the C compounds. 163.-. (canceled)64. A method for generating compounds with two or more carbon atoms (C compounds) , comprising:{'sub': 2', '4', '2', '4', '2+', '2, '(a) directing oxygen (O) and methane (CH) into an oxidative coupling of methane (OCM) reactor that reacts the Oand the CHin an OCM process to yield a product stream comprising (i) C compounds including olefins and paraffins and (ii) carbon monoxide (CO) and/or carbon dioxide (CO);'}(b) directing the product stream from the OCM reactor into a separations unit that selectively adsorbs the olefins from the paraffins, wherein the separations unit comprises (i) a pressure swing adsorption (PSA) unit, (ii) a temperature swing adsorption (TSA) unit, or (iii) a membrane unit, and wherein the PSA unit, the TSA unit or the membrane unit comprises a sorbent that selectively adsorbs the olefins; and(c) desorbing the olefins from the sorbent.65. The method of claim 64 , wherein the separations unit selectively separates ethylene from the paraffins.66. The method of claim 64 , wherein the sorbent has dispersed metal ions that are capable of complexing with the olefins.67. The method of claim 64 , wherein the sorbent is selected from a zeolite claim 64 , a molecular sieve sorbent claim 64 , a carbon molecular sieve claim 64 , an activated carbon claim 64 , a carbon nanotube claim 64 , a metal-organic framework (MOF) claim 64 , and a ...

Process For Extracting A Surfactant Using A Boronic Acid Modified Material

A process for extracting a surfactant from a mixture using a boronic acid modified material.

CARBIDE DERIVED CARBON FOR USE IN CHEMICAL SCRUBBERS

In the method for scrubbing a chemical from a medium, wherein the improvement comprises the steps of using a carbide derived carbon to adsorb the chemical which may later be released by heating. The carbide derived carbon may be a powder, a fiber, a solid foam, a mesh, or other solid form. The carbide derived carbon can adsorb a chemical in the gaseous, liquid, particulate, or aerosol phase. 1. A method for chemical scrubbing , comprisingproviding at least one chemical from a medium; andusing a carbide derived carbon (CDC) to adsorb the at least one chemical.2. The method of claim 1 , wherein the carbide-derived carbon can be used in low-humidity environments.3. The method of claim 1 , wherein the carbide-derived carbon can be used in high-humidity environments.4. The method of claim 1 , wherein the carbide-derived carbon can be used in water.5. The method of claim 1 , wherein the carbide-derived carbon can adsorb a chemical in the gaseous claim 1 , liquid claim 1 , particulate claim 1 , or aerosol phase.6. The method of claim 1 , wherein the carbide-derived carbon can be made from a carbide by the removal of the metal element(s).7. The method of claim 6 , wherein the starting material may be varied in order to tailor the porosity of the carbide-derived carbon to favor adsorption of certain molecules.8. The method of claim 6 , wherein the reaction conditions may be varied in order to tailor the porosity of the carbide-derived carbon to favor adsorption of certain molecules.9. The method of claim 6 , wherein the carbide-derived carbon may be treated post-fabrication in order to enhance adsorption of certain molecules.10. The method of claim 1 , wherein the carbide-derived carbon may be a powder claim 1 , a fiber claim 1 , a solid foam claim 1 , a mesh claim 1 , or other solid form.11. The method of claim 1 , wherein the carbide-derived carbon may exist as a lone material or as a skin on the surface of an underlying support structure.12. The method of claim 1 , ...

Overcoming two carbon dioxide adsorption steps in diamine-appended metal-organic frameworks

Primary, secondary (1º,2º) alkylethylenediamine- and alkylpropylenediamine-appended variants of metal-organic framework are provided for CO2 capture applications. Increasing the size of the alkyl group on the secondary amine enhances the stability to diamine volatilization from the metal sites. Two-step adsorption/desorption profiles are overcome by minimizing steric interactions between adjacent ammonium carbamate chains. For instance, the isoreticularly expanded framework Mg2(dotpdc) (dotpdc4−=4,4″-dioxido-[1,1′:4′,1″-terphenyl]-3,3″-dicarboxylate), yields diamine-appended adsorbents displaying a single CO2 adsorption step. Further, use of the isomeric framework Mg-IRMOF-74-II or Mg2(pc-dobpdc) (pc-dobpdc4−=3,3-dioxidobiphenyl-4,4-dicarboxylate, pc=para-carboxylate) also leads to a single CO2 adsorption step with bulky diamines. By relieving steric interactions between adjacent ammonium carbamate chains, these frameworks enable step-shaped CO2 adsorption, decreased water co-adsorption, and increased stability to diamine loss. Variants of Mg2(dotpdc) and Mg2(pc-dobpdc) functionalized with large diamines such as N-(n-heptyl)ethylenediamine have utility as adsorbents for carbon capture applications.

POROUS CYCLODEXTRIN POLYMERIC MATERIALS AND METHODS OF MAKING AND USING SAME

A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance. 1. A mesoporous polymeric material comprising one or more cyclodextrins crosslinked with at least an equimolar amount of one or more aryl compounds that can react with a cyclodextrin to form an aryl ether bond , wherein the one or more aryl compounds are substituted with 2 or more chloride groups.2. The mesoporous polymeric material of claim 1 , wherein the one or more aryl compounds are substituted with 2-4 chloride groups.3. The mesoporous polymeric material of claim 1 , wherein the one or more aryl compounds comprise C-Chydrocarbon aryl or heteroaryl rings substituted with 2 or more chloride groups.4. The mesoporous polymeric material of claim 1 , wherein the one or more aryl compounds comprise phenyl substituted with 2 or more chloride groups.5. The mesoporous polymeric material of claim 3 , wherein the one or more aryl compounds is a chloro-substituted terephthalonitrile.6. The mesoporous polymeric material of claim 2 , wherein the one or more aryl compounds further comprise one or more electron-withdrawing groups selected from the group consisting of —F claim 2 , —NO claim 2 , and —CN.7. The mesoporous polymeric material of claim 3 , wherein the one or more aryl compounds further comprise one or more electron-withdrawing groups ...

METHODS OF PRODUCING FERRIHYDRITE NANOPARTICLE SLURRIES, AND SYSTEMS AND PRODUCTS EMPLOYING THE SAME

The present disclosure relates to methods of synthesizing slurries comprising ferrihydrite nanoparticles, and systems and methods employing the same. The method may include the steps of preparing an aqueous solution having ferric iron cations, halide anions, and a two-line iron promoter, and precipitating the ferrihydrite nanoparticles in the aqueous solution, thereby producing a ferrihydrite slurry. The ferrihydrite slurries may be useful in treating a polluted fluid having sulfur contaminants therein. 120.-. (canceled)21. A method for treating a HS-containing fluid stream , the method comprising:{'sub': '2', 'claim-text': [{'sub': 2', '2, '(i) a treated fluid stream comprising less HS than the HS-containing stream and'}, {'sub': '2', '(ii) a used slurry including ferrous sulfide, a 2LI promotor, and a first sulfur concentration of sulfur obtained from the HS-containing stream;'}], '(a) contacting a HS-containing fluid stream with a ferrihydrite slurry, wherein the ferrihydrite slurry includes ferrihydrite nanoparticles and a 2LI promotor wherein the contacting step results in'} (i) contacting the used slurry with an oxidizing agent thereby converting at least some of the sulfur in the used slurry into elemental sulfur and converting at least some of the ferrous sulfide in the used slurry into regenerated ferrihydrite thereby forming regenerated ferrihydrite slurry; and', '(ii) separating the elemental sulfur from the regenerated ferrihydrite slurry, wherein the regenerated ferrihydrite slurry includes ferrihydrite nanoparticles and a 2LI promotor and a second sulfur concentration less than the first sulfur concentration of the used slurry;, '(b) regenerating the used slurry to obtain elemental sulfur and a regenerated ferrihydrite slurry, wherein regenerating includeswherein the 2LI promotor is selected from the group consisting of alcohols, polyols, polysaccharides, alkali metasilicates and combinations thereof.22. The method of claim 21 , wherein steps (a) ...