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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 1387. Отображено 100.
29-06-2021 дата публикации

Устройство усовершенствованной микроповерхностной реакции гидрирования с нисходящим потоком и фиксированным слоем для производства нефтепродуктов

Номер: RU0000205181U1
Автор: Баоронг ВАНГ, Веимин МЕНГ, Гаодонг ЙАНГ, Гуокианг ЙАНГ, Женг ЖОУ, Жибинг ЖАНГ, Йу КАО, Леи ЛИ, Фенг ЖАНГ, Хонгжоу ТИАН, Хуаксун ЛУО
Принадлежит: НАНКИН ЙАНЧАНГ РИЭКШН ТЕКНОЛОДЖИ РИСЁРЧ ИНСТИТЬЮТ КО. ЛТД

Полезная модель относится к устройству усовершенствованной микроповерхностной реакции гидрирования с нисходящим потоком и фиксированным слоем для производства нефтепродуктов. Устройство включает в себя реактор с фиксированным слоем и генератор микроповерхностей, при этом генератор микроповерхностей расположен над реактором с фиксированным слоем для преобразования энергии давления водорода и/или кинетической энергии нефтепродукта во время реакции в поверхностную энергию пузырька и передачи поверхностной энергии пузырьку водорода, так что пузырек водорода дробится на микропузырьки и микропузырьки смешиваются с нефтепродуктом в процессе реакции для образования газожидкостной эмульсии; реактор с фиксированным слоем используется в качестве места протекания реакции гидрирования для образования стабильной усовершенствованной газожидкостной системы для реакции с фиксированным слоем, когда газожидкостная эмульсия поступает в реактор с фиксированным слоем; резервуар для разделения газа и жидкости соединен с реактором с фиксированным слоем для отделения газа от жидкости в смеси, являющейся результатом реакции в реакторе с фиксированным слоем. Устройство микроповерхностной реакции гидрирования с фиксированным слоем имеет преимущества низкого потребления энергии, низкого рабочего давления, большой площади межфазной границы массопереноса газ-жидкость, высокой видимой скорости реакции и высокой эффективности использования газа. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 205 181 U1 (51) МПК B01J 8/02 (2006.01) C10G 45/08 (2006.01) C10G 45/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B01J 8/02 (2021.02); C10G 45/08 (2021.02); C10G 45/22 (2021.02) (21)(22) Заявка: 2020129865, 06.06.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 29.06.2021 15.03.2019 CN 201910196596.X (45) Опубликовано: 29.06.2021 Бюл. № 19 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.09.2020 (73) ...

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Номер записи: 1
19-01-2012 дата публикации

Multiphase contact and distribution apparatus for hydroprocessing

Номер: US20120014847A1
Автор: Abdenour Kemoun, Craig Boyak, Krishniah Parimi, Ralph E. Killen, Steve Souers, Steven X. Song, Zackory Akin
Принадлежит: Chevron USA Inc

Systems and apparatus for mixing, cooling, and distributing multiphase fluid mixtures within a reactor, wherein reactor internal apparatus of the present invention provides not only improved fluid mixing and distribution to each underlying catalyst bed surface, but also offers other advantages including: decreased mixing tray height; easier maintenance, assembly and disassembly; and decreased amounts of fabrication material. In an embodiment, fluid may be evenly distributed to a catalyst bed from a fluid distribution unit comprising a nozzle tray including a plurality of nozzles, wherein the nozzles include at least one liquid inlet disposed tangentially to an inner surface of the nozzle.

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Номер записи: 2
20-09-2012 дата публикации

Split Flow Contactor

Номер: US20120237434A1
Автор: David P. Mann, Kenneth L. Blanchard
Принадлежит: Kellogg Brown and Root LLC

Systems and methods for contacting a liquid, gas, and/or a multi-phase mixture with particulate solids. The system can include a body having a first head and a second head disposed thereon. Two or more discrete fixed beds can be disposed across a cross-section of the body. One or more unobstructed fluid flow paths can bypass each fixed bed, and one or more baffles can be disposed between the fixed beds.

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Номер записи: 3
04-07-2013 дата публикации

Reaction device for producing hydrocarbons from synthesis gas

Номер: US20130171040A1
Автор: Du Eil Kim, Gyu In Jung, Jong Wook Bae, Ki Won Jun, Kyoung Su Ha
Принадлежит: Korea Research Institute of Chemical Technology KRICT

Disclosed is a reaction device for producing hydrocarbons from synthesis gas, in which hydrocarbons, olefins, oxygenates, etc., are produced over a Fischer-Tropsch catalyst by using synthesis gas, so that catalyst particles can easily be from a slurry which is discharged to the outside. That is, the present invention provides a reaction device for producing hydrocarbons from synthesis gas, in which an internal filter system for separating particles enlarged due to a agglomeration phenomenon of a catalyst is installed inside the reactor, and an separating device is separately disposed outside, such that it is possible to recirculate only particles having a size appropriate for performing F-T synthesis in the slurry phase, and additionally, it is possible to effectively discharge and process a catalyst aggregated due to a combination of fine catalyst particles, the catalyst chipped off during the operation, etc., liquid hydrocarbon, resulting water, etc., in the slurry phase reactor.

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Номер записи: 4
26-12-2013 дата публикации

Apparatus for Retaining Solid Material in a Radial Flow Reactor and Method of Making

Номер: US20130340229A1
Автор: Michael J. Vetter, Paul A. Sechrist, Quan Yuan
Принадлежит: UOP LLC

An apparatus for use in radial flow reactors is presented. The apparatus includes a first partition and a second partition with support members coupled therebetween. The first partition include a first opening and a second opening to allow the passage of fluid therethrough. A baffle extends into a flow channel formed by adjacent support members to obstruct an upper or lower portion of the first opening to interrupt a portion of the fluid flow therethrough.

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Номер записи: 5
13-02-2014 дата публикации

Regenerative Gas Generator

Номер: US20140041392A1
Автор: Charles Robin Nail
Принадлежит: NW Licensing Co LLC

Systems, methods, and computer program products are disclosed that overcome the deficiencies of traditional steam engines and internal combustion engines. In an embodiment, a system is disclosed for generating reaction products having elevated temperature and pressure. The system comprises a first chamber including a reactor to decompose hydrogen peroxide to generate oxygen and water vapor. The system further comprises a second chamber including a reactor to catalytically combust a mixture of the generated oxygen and a fuel to generate reaction products having elevated temperature and pressure. The system further comprises a passageway to receive reaction products exiting the second chamber and to channel the reaction products to come into contact with external surfaces of the first and second chambers to thereby transfer heat to the first and second chambers, and an outlet to allow the reaction products to exit the system.

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Номер записи: 6
07-01-2021 дата публикации

Bi-Modal Radial Flow Reactor

Номер: US20210001296A1
Автор: Cameron M. Crager, Vincent dePaul MCGAHEE, William Donald Treleaven
Принадлежит: Chevron Phillips Chemical Co LP

A bi-modal radial flow reactor comprising a cylindrical outer housing surrounding at least five cylindrical, concentric zones, including at least three annulus vapor zones and at least two catalyst zones. The at least two catalyst zones comprise an outer catalyst zone and an inner catalyst zone. The at least three annulus vapor zones comprise an outer annulus vapor zone, a middle annulus vapor zone, and a central annulus vapor zone, wherein the central annulus vapor zone extends along a centerline of the bi-modal radial flow reactor. The outer catalyst zone is intercalated with the outer annulus vapor zone and the middle annulus vapor zone, and the inner catalyst zone is intercalated with the middle annulus vapor zone and the central annulus vapor zone. A removable head cover can be fixably coupled to a top of the cylindrical outer housing to seal a top of the bi-modal radial flow reactor.

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Номер записи: 7
05-01-2017 дата публикации

REACTION DEVICE FOR PREPARING LIGHT OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER

Номер: US20170001164A1
Автор: Liu Zhongmin, Ye Mao, Zhang Tao
Принадлежит:

A reaction device for preparing light olefins from methanol and/or dimethyl ether, and more specifically relates to a reaction device for preparing light olefins from methanol and/or dimethyl ether, which mainly comprises a dense phase fluidized bed reactor (), a cyclone separator (), a stripper (), a lift pipe (), a dense phase fluidized bed regenerator (), a cyclone separator (), a stripper (), and a lift pipe (), wherein the dense phase fluidized bed reactor () is separated into n (n≧2) secondary reaction zones by a material flow controller (), and the dense phase fluidized bed regenerator () is separated into m (m≧2) secondary regeneration zones by the material flow controller (). 1. A reaction device for preparing light olefins from methanol and/or dimethyl ether comprising a dense phase fluidized bed reactor , a cyclone separator , a stripper , a lift pipe , a dense phase fluidized bed regenerator , a cyclone separator , a stripper , and a lift pipe; wherein a feeding line for reactor is connected to the bottom of the dense phase fluidized bed reactor; a part of the stripper is in the dense phase fluidized bed reactor , and the remaining part thereof is below the dense phase fluidized bed reactor; the bottom of the lift pipe is connected to the bottom of the stripper , and the top of the lift pipe is connected to the dense phase fluidized bed regenerator; a feeding line for regenerator is connected to the bottom of the dense phase fluidized bed regenerator; a part of the stripper is in the dense phase fluidized bed regenerator , and the remaining part thereof is below the dense phase fluidized bed regenerator; the bottom of the lift pipe is connected to the bottom of the stripper , and the top of the lift pipe is connected to the dense phase fluidized bed reactor , wherein a material flow controller is provided in the dense phase fluidized bed reactor and/or the dense phase fluidized bed regenerator , and the dense phase fluidized bed reactor is separated into ...

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Номер записи: 8
05-01-2017 дата публикации

PROCESS FOR CONTINUOUS POLYMERIZATION OF OLEFIN MONOMERS IN A REACTOR

Номер: US20170002113A1
Автор: Banat Yahya, Cevallos-Candau Jose Fernando
Принадлежит:

The invention relates to a system for the continuous polymerization of α-olefin monomers comprising a reactor, a compressor, a cooling unit and an external pipe, wherein the reactor comprises a first outlet for a top recycle stream, wherein the system comprises apparatus, wherein the reactor comprises a first inlet for receiving a bottom recycle stream, wherein the reactor comprises an integral separator, wherein the first inlet of the integral separator is connected to a first outlet, wherein the first outlet for the liquid phase is connected to the second outlet of the reactor for the liquid phase, wherein the external pipe comprises a second inlet for receiving a solid polymerization catalyst, wherein the first outlet of the external pipe is connected to a second inlet of the reactor, wherein the reactor comprises a third outlet, wherein the system comprises a first inlet for receiving a feed. 18400511. A system for the continuous polymerization of one or more α-olefin monomers of which at least one is ethylene or propylene , the system comprising a reactor () , a compressor () , a cooling unit () and an external pipe () for the production of a prepolymer and/or polymer ,{'b': '40', 'wherein the reactor comprises a first outlet for a top recycle stream (),'}wherein the system comprises apparatus for condensing the top recycle stream into a bottom recycle stream,{'b': '10', 'wherein the reactor comprises a first inlet for receiving a bottom recycle stream (),'}{'b': '6', 'wherein the first inlet for receiving the bottom recycle stream is located underneath the distribution plate (),'}{'b': '1', 'wherein the reactor comprises an integral separator () for separation of the bottom recycle stream into a gas/liquid phase and a liquid phase,'}{'b': '6', 'wherein the integral separator is located underneath the distribution plate (),'}wherein the first inlet of the integral separator is connected to a first outlet for a liquid phase,wherein the first outlet for the ...

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Номер записи: 9
05-01-2017 дата публикации

A CVI DENSIFICATION INSTALLATION INCLUDING A HIGH CAPACITY PREHEATING ZONE

Номер: US20170002466A1
Автор: DELPERIER Bernard, POTIN Jean-François, SOULIGNAC Sophie
Принадлежит:

A thermochemical treatment installation includes a reaction chamber, at least one gas inlet, and a gas preheater chamber situated between the gas inlet and the reaction chamber. The preheater chamber has a plurality of perforated distribution trays held spaced apart one above another. The preheater chamber also includes, between at least the facing distribution trays, a plurality of walls defining flow paths for a gas stream between said trays. 1. A thermochemical treatment installation comprising a reaction chamber , at least one gas inlet , and a gas preheater chamber situated between the gas inlet and the reaction chamber said preheater chamber having a plurality of perforated distribution trays held spaced apart one above another , wherein the preheater chamber also includes , between at least two facing distribution trays , a plurality of walls defining flow paths for a gas stream between said trays , each wall extending vertically between said at least two facing distribution trays.2. An installation according to claim 1 , wherein the distribution trays are disk-shaped and wherein at least some of the walls extend between said trays in a radial direction.3. An installation according to claim 1 , wherein at least some of the walls present an undulating shape.4. An installation according to claim 1 , wherein the walls present thermal conductivity that is greater in a direction parallel to the distribution trays than in a direction perpendicular to said perforated trays.5. An installation according to claim 4 , wherein the walls are made of composite material having fiber reinforcement densified by a matrix claim 4 , and wherein the reinforcing fibers extend for the most part in a direction parallel to the distribution trays.6. An installation according to claim 4 , wherein the walls are made of graphite.7. An installation according to claim 2 , wherein the number of walls is greater in the vicinity of the peripheries of the distribution trays than in the centers ...

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Номер записи: 10
12-01-2017 дата публикации

Reactor with stripping zone

Номер: US20170009152A1
Автор: Kiran Ladkat, Richard K. Hoehn, Soumendra Mohan Banerjee, Sudipto Chakraborty
Принадлежит: UOP LLC

A hydrotreating reactor including a vessel comprising an upper zone, and intermediate zone and a lower zone. The upper zone comprises at least one upper catalyst bed. The intermediate zone comprises a vapor/liquid separation zone, wherein gas separated within the vapor/liquid separation zone is directed to a high pressure knockout drum and the liquid separated within the vapor/liquid separation zone is directed to a stripping section and then the lower zone. The lower zone comprises at least one lower catalyst bed. Preferably, the stripping section is configured and arranged for removing hydrogen sulfide and ammonia from the gas.

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Номер записи: 11
09-01-2020 дата публикации

FLOW-PROMOTING DEVICE, A REACTOR ARRANGEMENT AND THE USE OF SUCH FLOW-PROMOTING DEVICE

Номер: US20200009519A1
Автор: Byström Emil, IRGUM Knut, LÖFGREN Erik, Öberg Christopher
Принадлежит:

The invention refers to a flow-promoting device (″) for performing a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic medium. The flow-promoting device (″) comprises a ferromagnetic material () and a retaining structure (″), the retaining structure having a compartment (″) defined by a permeable material (″). The retaining structure (″) comprises a top wall (″) and a circumferential side wall (″), wherein the top wall (″) and the circumferential side wall (″) is formed mainly by said permeable material (″). The compartment (″) of the retaining structure (″) is arranged to contain at least one fluid-permeable solid reaction member. 1. A flow-promoting device for performing a biological or chemical transformation , or physical or chemical trapping from , or release of agents to , a fluidic medium , whereinsaid flow-promoting device comprising a ferromagnetic material and a retaining structure, the retaining structure having a compartment defined by a permeable material, whereinthe retaining structure comprises a top wall and a circumferential side wall, wherein the top wall and the circumferential side wall is formed mainly by said permeable material, andthe compartment of the retaining structure is arranged to contain at least one fluid-permeable solid reaction member, wherebywhen the flow-promoting device is submerged into a fluidic medium and the flow-promoting device is subjected to an alternating magnetic field, the flow-promoting device is set to rotate, thereby causing a flow of fluidic medium into and through the compartment via said permeable material.2. The flow-promoting device according to claim 1 , wherein the top wall has a continuous extension across its full surface extension and does not comprise any central inlet opening.3. The flow-promoting device according to claim 1 , wherein the permeable material is a mesh material claim 1 , said mesh material having an inherent stiffness thereby ...

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Номер записи: 12
03-02-2022 дата публикации

FLOW DISTRIBUTOR AND REACTOR USING SUCH FLOW DISTRIBUTOR

Номер: US20220032244A1
Автор: Byström Emil
Принадлежит: Spinchem AB

A cylindrical flow distributor () for performing, by means of solid reaction members, a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic media is provided. The flow distributor () comprises: a top wall (); a bottom wall () comprising a central through going opening (); and an outer wall () extending between the top wall () and the bottom wall (). The top wall (), the bottom wall () and an inner envelope surface () of said outer wall () together define a confinement () configured to contain solid reaction membersor a rigid body of a reaction member material. The outer wall () comprises a first plurality of longitudinally extending ribs () arranged side by side with longitudinal gaps () extending in the circumferential direction between two adjacent ribs (), and a circumferentially extending first scaffold () encircling and being fixedly attached to a peripheral outer surface () of said plurality of longitudinally extending ribs (). Further, a reactor using such flow distributor () is provided. 1. A cylindrical flow distributor for performing , by means of solid reaction members , a biological or chemical transformation , or physical or chemical trapping from , or release of agents to , a fluidic media , the flow distributor comprising:a top wall;a bottom wall comprising a central through going opening;an outer wall extending between the top wall and the bottom wall; andan inner wall;wherein the outer wall comprises a first plurality of longitudinally extending ribs arranged side by side along a longitudinal centerline of the flow distributor with gaps extending in the circumferential direction between two adjacent ribs, and a circumferentially extending first scaffold encircling and being fixedly attached to a peripheral outer surface of said plurality of longitudinally extending ribs;wherein the inner wall comprises a second scaffold having an extension along an axial direction of the flow distributor, ...

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Номер записи: 13
19-01-2017 дата публикации

SCALE COLLECTION AND PREDISTRIBUTION TRAY FOR VESSEL WITH DOWNWARD TWO-PHASE FLOW

Номер: US20170015917A1
Автор: Muller Morten
Принадлежит: MORTEN MULLER LTD. APS

Vapor and liquid flow concurrently down through a vertical vessel. A horizontal scale collection and predistribution tray is located in the vessel to remove solid contaminants and to redistribute the liquid to a fine distribution tray. The scale collection and predistribution tray consists of a tray plate with a scale collection zone where the solid contaminants settle and deposit. In one embodiment, an upstanding permeable wall forms the scale collection zone, and liquid is filtered as it flows through the permeable wall, leaving the solid contaminants trapped upstream from the permeable wall. The predistribution tray has a rim provided with a slotted weir. Liquid from the scale collection zone forms a liquid level in a trough located between the permeable wall and the weir. Due to the uniform liquid level in the trough, liquid flow rates through the slots in the weir are nearly equal. Because of the polygonal shape of the tray, the liquid exits the slots in a direction along lanes defined between distribution units on the fine distribution tray, and the amount of liquid entering the vapor inlets of the distribution units is therefore small. Vapor by-passes the scale collection and pre-distribution tray through the area between the reactor wall and the permeable wall, and through the area between the reactor wall and the weir to the fine distribution tray. The scale collection and predistribution tray protects the fine distribution tray and the catalyst bed from fouling, pre-distributes liquid to the fine distribution tray to minimize level gradients on this tray, and reduces flow velocities to ensure calm flow conditions on the fine distribution tray. 1. A method for removal of solid contaminants from a process stream comprising a vapor and a liquid and for predistribution of the liquid to a fine distribution tray in a catalytic reactor vessel with concurrent downflow of the vapor and the liquid , the method comprising the steps of:providing a scale collection and ...

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Номер записи: 14
21-01-2021 дата публикации

USE OF TREATING ELEMENTS TO FACILITATE FLOW IN VESSELS

Номер: US20210018022A1
Автор: GLOVER JOHN N., HAM PETER GREGORY, SCHNEIDER AUSTIN
Принадлежит: CRYSTAPHASE PRODUCTS, INC.

A method for facilitating the distribution of the flow of one or more streams within a bed vessel is provided. Disposed within the bed vessel are internal materials and structures including multiple operating zones. One type of operating zone can be a processing zone composed of one or more beds of solid processing material. Another type of operating zone can be a treating zone. Treating zones can facilitate the distribution of the one or more streams fed to processing zones. The distribution can facilitate contact between the feed streams and the processing materials contained in the processing zones. 1. A method of improving flow distribution of one or more streams in a process vessel comprising:passing the one or more streams through more than one processing zone within the process vessel, wherein each processing zone contains processing materials; andpassing the one or more streams through a redistribution treating zone located within the processing vessel and between an upstream processing zone and a downstream processing zone, wherein the redistribution treating zone comprises at least one layer of fixed material which provides porous structures to facilitate stream flow redistribution by laterally dispersing the one or more streams to provide improved contact between the one or more streams and the downstream processing materials within the processing vessel,wherein there is no space between the upstream processing zone and the redistribution treating zone, andwherein the redistribution zone is located adjacent to both the upstream processing zone and the downstream processing zone.2. The method of claim 1 , wherein a bed zone is disposed upstream of the upstream processing zone.3. The method of claim 1 , wherein certain of the processing materials from the upstream processing zone mix into the redistribution treating zone to create a combo-zone having both processing zone functionality and treating zone functionality.4. The method of claim 1 , wherein the ...

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Номер записи: 15
23-01-2020 дата публикации

Cover system for a solid particle lining and reactor comprising such a system

Номер: US20200023329A1
Автор: Bernard Poussin
Принадлежит: Crealyst Group SAS

The invention relates to a cover system ( 5 ) for a solid particle lining ( 3 ) comprising an articulated structure ( 11 ) and an annular casing ( 13 ) covering the articulated structure ( 11 ), the casing ( 13 ) being formed by metal plates ( 16, 17 ) sealingly mounted so as to be movable relative to each other, the articulated structure ( 11 ) having metal skirts ( 31 ) forming articulated concentric circles ( 33 ) for supporting the plates ( 16, 17 ) of the casing ( 13 ) and adapting to the deformations of the lining ( 3 ), and metal elements ( 35 ) forming articulated spacers ( 37 ) making it possible to maintain a spacing between the articulated concentric circles ( 33 ) and to adapt to the deformations of the lining ( 3 ).

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Номер записи: 16
10-02-2022 дата публикации

Use of treating elements to facilitate flow in vessels

Номер: US20220042528A1
Автор: Austin Schneider, John N. Glover, Peter Gregory Ham
Принадлежит: Crystaphase International Inc

A method for facilitating the distribution of the flow of one or more streams within a bed vessel is provided. Disposed within the bed vessel are internal materials and structures including multiple operating zones. One type of operating zone can be a processing zone composed of one or more beds of solid processing material. Another type of operating zone can be a treating zone. Treating zones can facilitate the distribution of the one or more streams fed to processing zones. The distribution can facilitate contact between the feed streams and the processing materials contained in the processing zones.

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Номер записи: 17
04-02-2016 дата публикации

SEALING SYSTEM FOR A FLUID CATALYST CRACKING REGENERATOR

Номер: US20160030905A1
Автор: Althoff James W., La Vine Mark A., Paden Melvin, Sandacz Michael S., Stine Michael A., Walker Patrick D.
Принадлежит:

A regenerator for an FCC apparatus. The regenerator includes a riser inside of a shell. The riser includes a cone and a cone skirt. An annulus is formed between the riser and the shell. A sealing system for keeping catalyst out of a portion of the annulus comprises a first sealing element and a second sealing element disposed above the second sealing element. The second sealing element comprises a ring having one or more plates being movable to accommodate the thermal expansion of the riser. 1. A regenerator for regenerating catalyst from an FCC reactor , the regenerator comprising:an internal riser comprising a cone and a cone skirt,a shell surrounding the internal riser and forming an annulus between an outer surface of the riser and an inner surface of the shell, a bottom of the cone skirt being secured to the shell;a primary seal disposed in the annulus between the internal riser and the shell; and,a secondary seal disposed above the primary seal, wherein the secondary seal comprises a sealing ring including at least one pivotable plate.2. The regenerator of claim I wherein the sealing ring forms a cone.3. The regenerator of claim I wherein the sealing ring forms a plate4. The regenerator of claim I wherein the secondary seal further comprises an outer seal support ring secured to the inner surface of the shell , the outer seal support ring forming a lap joint with the at least one pivotable plate.5. The regenerator of wherein the secondary seal further comprises an inner seal support ring secured to the outer surface of the riser.6. The regenerator of claim 5 , wherein the inner seal support ring comprises at least one post.7. The regenerator of claim 6 , wherein the at least one pivotable plate includes an aperture to receive the at least one post claim 6 , and wherein the at least one post forms a pivot for the at least one pivotable plate.8. The regenerator of wherein the inner seal support ring includes plurality of posts claim 7 , and wherein the secondary ...

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Номер записи: 18
31-01-2019 дата публикации

METHODS FOR FLUID CONTACTING IN A DOWNFLOW VESSEL

Номер: US20190030495A1
Автор: Chen Pengfei, Lesniak Steven J., Naunheimer Christopher, Shafe Peter H., Xu Zhanping
Принадлежит:

A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone. 1. A method for fluid contacting in a downflow vessel , the method comprising:collecting liquid on a liquid collection tray;passing at least a portion of the liquid through an inlet of an enclosed mixing channel of a mixing device and downstream through the mixing channel; andpassing at least a portion of vapor through a vapor inlet of the mixing channel downstream of the liquid inlet and across the liquid stream flowing through the mixing channel to contact the vapor and liquid in the mixing channel.2. The method of claim 1 , wherein passing at least a portion of the vapor through the mixing channel vapor inlet further comprises passing at least a portion of the vapor into a lower portion of the mixing channel into the liquid flowing through the mixing channel.3. The method of claim 1 , wherein passing at least a portion of the vapor through the mixing channel vapor inlet further comprises passing at least a portion of the vapor obliquely downstream into the mixing channel to facilitate the flow and contact of the liquid and vapor in the downstream direction.4. The method of claim 1 , wherein passing at least a portion of the vapor through the mixing channel vapor inlet further comprises passing at least a portion of the vapor through an upper chimney opening of a vapor chimney surrounding the vapor inlet and passing the vapor downwardly through the chimney to the mixing channel vapor inlet.5. The method of claim 4 , further comprising passing at least another portion of the vapor through a second vapor inlet of the mixing channel at a different downstream distance from the liquid inlet than the first ...

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Номер записи: 19
31-01-2019 дата публикации

TAPERED FLUIDIZED BED REACTOR AND PROCESS FOR ITS USE

Номер: US20190030506A1
Автор: Bucci John V., Cocco Raymond Anthony, Dehtiar Max E., Harder Patrick J., Karri S.B. Reddy, Knowlton Ted M., Molnar Michael J.
Принадлежит:

A fluidized bed reactor includes a gas distributor, a tapered section above the gas distributor, and an expanded head above the tapered section. The gas distributor defines a plurality of inlets surrounding a product withdrawal tube, which extends away from the fluidized bed reactor. The fluidized bed reactor is useful in a process for fluidizing relatively large particles, such as Geldart Group B particles and/or Geldart Group D particles, where said particles are in a bubbling fluidized bed residing, in whole or in part, in the tapered section. The fluidized bed reactor and process may be used for manufacturing polycrystalline silicon. 1. A process for preparing polycrystalline silicon in a fluidized bed reactor , where the process comprises:feeding gases comprising hydrogen and a silicon bearing source gas comprising a silicon monomer into a bubbling fluidized bed containing silicon particles, where at least a portion of the bubbling fluidized bed resides in a tapered section of the fluidized bed reactor, where the tapered section expands upward and outward at a cone angle from vertical;feeding silicon particles into the fluidized bed reactor above the tapered section;heating the fluidized bed reactor, thereby causing thermal decomposition of the silicon monomer to produce polycrystalline silicon on surfaces of the silicon particles, thereby producing larger diameter particles; andremoving the larger diameter particles from the fluidized bed reactor.2. The process of claim 1 , where the cone angle ranges from 2.5° to 10.0°.3. The process of claim 1 , where the silicon bearing source gas comprises HSiCland optionally SiCl.4. The process of claim 1 , where the silicon bearing source gas comprises HSiBrand optionally SiBr.5. The process of claim 1 , where the silicon bearing source gas comprises SiH.6. The process of claim 1 , wherein i. a product withdrawal tube is mounted to the gas distributor,', 'ii. the gas distributor defines a plurality of feed inlets, and', ...

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Номер записи: 20
31-01-2019 дата публикации

REACTOR PACKING WITH PREFERENTIAL FLOW CATALYST

Номер: US20190031506A1
Автор: Jin Bo, Nicholson Kelly, Raybold Troy M.
Принадлежит:

The present invention relates to reactor tubes packed with a catalyst system employed to deliberately bias process gas flow toward the hot tube segment and away from the cold segment in order to reduce the circumferential tube temperature variation. 1. A method of producing synthesis gas within a tubular reformer , comprising:introducing a process gas, where the process gas comprises steam and at least one hydrocarbon at an inlet of one or more tubes disposed in the reformer, contacting the process gas with a catalyst in the interior of the one or more tubes, wherein at least a portion of the catalyst has a structural element that circumferentially biases a process gas flow toward at least one tube wall side of greater incident heat flux thereby reducing the maximum tube wall temperature, andremoving a reformed process gas at an outlet of the one or more tubes wherein the reformed process gas is a synthesis gas containing predominantly hydrogen, carbon monoxide, carbon dioxide, and water.2. The method of claim 1 , wherein the structural element biases the process gas flow toward the at least one tube wall side of greater incident heat flux and away from the tube wall sides of lesser incident heat flux claim 1 , thereby reducing the circumferential variation in the tube wall temperature.3. The method of claim 1 , wherein the structural element is utilized in at least a portion of the tube.4. The method of claim 3 , wherein the type and/or elevation of the structural element is predetermined by analysis of the reformer tube wall incident heat flux profile.5. The method of claim 1 , wherein the structural element has a configuration that varies over the length of the tube.6. The method of claim 1 , wherein one or more types of structured elements are utilized in one or more tubes within the tubular reformer7. A catalyst with a structural element disposed in the interior of one or more tubes within a tubular reformer claim 1 , comprising: a structural element that ...

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Номер записи: 21
30-01-2020 дата публикации

Reactors and systems for oxidative coupling of methane

Номер: US20200031734A1
Автор: Charles Reid, David Sheridan, Erik Freer, Guido Radaelli, Jarod McCormick, Jin Ki Hong, Joel Cizeron, Justin Dwight Edwards, Roberto Pellizzari, Samuel Weinberger, Satish LAKHAPATRI
Принадлежит: Lummus Technology Inc

In an aspect, the present disclosure provides a method for the oxidative coupling of methane to generate hydrocarbon compounds containing at least two carbon atoms (C 2+ compounds). The method can include mixing a first gas stream comprising methane with a second gas stream comprising oxygen to form a third gas stream comprising methane and oxygen and performing an oxidative coupling of methane (OCM) reaction using the third gas stream to produce a product stream comprising one or more C 2+ compounds.

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Номер записи: 22
08-02-2018 дата публикации

Float valve for a chemical reactor

Номер: US20180036700A1
Автор: Emir Zahirovic, Flemming PLOUGSTRUP NIELSEN, Klaus Risbjerg Jarlkov
Принадлежит: Haldor Topsoe AS

A float valve for a chemical reactor has a central pipe which glides around a liquid transfer pipe when a liquid level rises and falls, thereby opening for fluid transfer through liquid transfer apertures in the transfer pipe when the liquid level is rising and shutting off for fluid transfer when the float lowers and seals against a sealing ring placed on the transfer pipe below the liquid transfer apertures.

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Номер записи: 23
11-02-2016 дата публикации

Conversion of polymer containing materials to petroleum products

Номер: US20160040073A1
Автор: Benjamin Ralph Coates, Priyanka Bakaya
Принадлежит: Pk Clean Technologies Inc

Systems and methods achieve the conversion of polymer containing material into petroleum products such as hydrocarbon gas, wax, crude oil and diesel. The reactor and its system are designed to subject the polymer containing material to pyrolysis in a way that results in a higher petroleum product yield than conventional existing systems. The system has controls which allow for the heating temperature, rotation of the body, and throughput rate, to be adjusted depending on the reaction time required for the material inside the reactor. The condensing system is able to separate the products into the desired petroleum products by percentage output ranging from wax to crude-like oil to diesel-quality oil.

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Номер записи: 24
09-02-2017 дата публикации

BIOMASS DIGESTER WITH TWO LIQUID PHASES AND DRAFT TUBE CIRCULATION

Номер: US20170037072A1
Автор: BOON Andries Quirin Maria, CHEN Ye-Mon, Komplin Glenn Charles, POWELL Joseph Broun
Принадлежит:

A method comprises introducing biomass solids to a digester comprising a reactor, a circulation system including a first injector; providing a catalyst-containing digestion medium and an organic solvent layer floating thereon; circulating the medium through the circulation system; flowing gas through the medium; keeping the medium hot enough to digest the solids; and operating the digester such a headspace exists above the solvent. The digester includes a first eductor having an inlet in the headspace, a second eductor having an inlet in the organic layer, and a downdraft tube having an inlet in the digestion medium. A motive fluid flowing from the first injector draws gas from the headspace into the first eductor, a motive fluid flowing from the first eductor draws fluid from the organic layer into the second eductor, and a motive fluid flowing from the second eductor draws fluid from the digestion medium into the downdraft tube. 1. A method comprising: i) a reactor;', 'ii) a gas feed line for providing gas to the reactor;', 'iii) a biomass feed system for feeding biomass into the reactor;', 'iv) a fluid circulation system including a fluid inlet, a pump, and at least one fluid injector, wherein at least said fluid inlet and said fluid injector are in fluid communication with said pump and are within said reactor; and', 'v) a screen positioned within the reactor and defining a lower zone therebelow;, 'a) introducing cellulosic biomass solids to a hydrothermal digestion unit comprisingb) providing a liquid phase digestion medium containing a slurry catalyst in the hydrothermal digestion unit, the slurry catalyst being capable of activating molecular hydrogen;c) providing a layer of organic solvent in the hydrothermal digestion unit, said organic solvent being less dense than and substantially immiscible with said digestion medium, whereby said organic solvent forms an organic layer floating on said digestion medium;d) circulating said liquid phase digestion medium ...

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Номер записи: 25
24-02-2022 дата публикации

FLUIDIZED BED COOLER WITH REGIONAL COORDINATION ENHANCEMENT

Номер: US20220055004A1
Автор: LI Jiantao, Lu Chunxi, YAO Xiuying
Принадлежит:

The present disclosure discloses a fluidized bed cooler with regional coordination enhancement, comprising a shell, a catalyst inlet, an interior of the shell is divided into a catalyst inlet influence region, a dilute phase region, a dense phase region and a gas distributor influence region; a catalyst inlet inclined tube is provided obliquely upward at the catalyst inlet, and a regional particle distributor is provided at the catalyst inlet; the dense phase region is provided with a plurality of dense phase baffle plates, and the dilute phase region is provided with a plurality of dilute phase baffle plates; and the gas distributor influence region is provided with double gas distributors. The fluidized bed cooler simultaneously well solves the low internal stability and the low heat exchange efficiency of the fluidized bed cooler, thereby realizing the stable and efficient operation of the fluidized bed cooler. 1. A fluidized bed cooler with regional coordination enhancement , comprising a shell which is cylindrical and vertically provided , wherein a plurality of heat exchange tubes are vertically distributed in the shell , a catalyst inlet is provided at an upper portion of the shell , a catalyst outlet is provided at a bottom portion of the shell , and an interior of the shell is divided into a catalyst inlet influence region , a dilute phase region at the upper portion , a dense phase region at the lower portion and a gas distributor influence region at the bottom portion , and wherein the dilute phase region and the dense phase region are located above and below the catalyst inlet influence region , respectively , wherein a catalyst inlet inclined tube is provided obliquely upward at the catalyst inlet , and a regional particle distributor is provided at the catalyst inlet positioned in the catalyst inlet inclined tube;wherein the regional particle distributor comprises a local gas distribution plate, a local gas pre-distributor, a left splitter partition ...

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Номер записи: 26
07-02-2019 дата публикации

ENHANCED EFFICIENCY ENDOTHERMIC REACTOR FOR SYNGAS PRODUCTION WITH FLEXIBLE HEAT RECOVERY TO MEET LOW EXPORT STEAM GENERATION

Номер: US20190039038A1
Автор: Guazzotti Cristina, Mosca Lorena, PALO Emma
Принадлежит:

An apparatus for carrying out endothermic reactions including a plurality of catalytic vessels, immersed in a combustion chamber having a contiguous overlaid convection chamber enclosing a top portion of the catalytic vessels wherein heat is recovered at a lower temperature level from the flue gases from the combustion chamber. The catalytic vessels may contain internal and coaxial heat recovery tubes creating an annular space filled in with a catalytic device. Both the external heat recovery through the catalyst tube outer surface and the internal heat recovery through the inner tube surface can be maximized by an enhanced catalytic device acting also as a heat transfer promoter in the process gas region. The apparatus provides enhanced and flexible heat recovery that permits to meet the request of minimum or none export steam production in one single apparatus, avoiding the need of a pre-reforming section and/or of a convective reformer downstream. 114-. (canceled)15. An apparatus for conducting endothermic reactions able to meet the heat balance with a null or limited amount of export steam , through a flexible heat recovery , comprising:a combustion chamber having a closed bottom end, an open top end, two opposite end walls, and two opposite side walls;an upper convection chamber, in communication with said combustion chamber through said open top end, allowing the flow of flue gas through a plurality of convection channels in flow communication with a top plenum chamber connected to an outlet flue gas channel;a plurality of catalytic vessels arranged at a distance and disposed in line or staggered along the centerline of the combustion and convection chamber in such a way that the bottom portion is immersed in the combustion chamber and the remaining top portion is immersed in the convection chamber wherein the portion of the catalytic vessel immersed in the combustion chamber is such that the flue gas temperature at its exit and inlet of the convection chamber ...

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Номер записи: 27
03-03-2022 дата публикации

CONVERSION OF A CRUDE OIL IN A FLUIDISED BED COMPRISING ZONES WITH DIFFERENT CONTACT TIMES

Номер: US20220062845A1
Автор: CLOUPET Ann, Raynal Ludovic
Принадлежит: IFP ENERGIES NOUVELLES

The present invention relates to a device and to a process for the fluidized bed catalytic cracking of a hydrocarbon feedstock, in which: a first feedstock () is cracked in a dense fluidized bed reactor () in the presence of a catalyst () to produce a first effluent; and at least one second feedstock () is cracked in a transport fluidized bed reactor () in the presence of the catalyst () supplied by the dense fluidized bed reactor () to produce a second effluent, the second feedstock () being a heavier feedstock than the first feedstock (). 112334. A device for the fluidized bed catalytic cracking of a hydrocarbon feedstock , comprising: a dense fluidized bed reactor () suitable for at least partially cracking a first hydrocarbon feedstock () in the presence of a catalyst () to produce a first effluent , and at least partially feeding with catalyst () a transport fluidized bed reactor (); and{'b': 4', '10', '3, 'the transport fluidized bed reactor () suitable for at least partially cracking at least one second hydrocarbon feedstock () in the presence of the catalyst () to produce a second effluent,'}{'b': 10', '2, 'the second hydrocarbon feedstock () being a heavier feedstock than the first hydrocarbon feedstock ().'}21443. The device as claimed in claim 1 , in which the dense fluidized bed reactor () is directly connected to the transport fluidized bed reactor () in order to directly feed the transport fluidized bed reactor () with catalyst ().31. The device as claimed in claim 1 , in which the dense fluidized bed reactor () is an ebullating or turbulent fluidized bed reactor.44. The device as claimed in claim 1 , in which the transport fluidized bed reactor () is an upward or downward gas-solid cocurrentwise fluidized bed reactor.54. The device as claimed in claim 1 , in which the transport fluidized bed reactor () is an upward gas-solid cocurrentwise fluidized bed reactor.614. The device as claimed in claim 1 , in which the dense fluidized bed reactor () is ...

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Номер записи: 28
03-03-2022 дата публикации

HIGH PRESSURE STRIPPERS FOR USE IN UREA PLANTS

Номер: US20220064109A1
Автор: PORRO Lino Giovanni
Принадлежит:

Shell-and-tube strippers for stripping a urea/carbamate mixture, related systems, methods, and uses. The stripper includes a shell, a plurality of tubes disposed within the shell, and a heating fluid distributor for homogenizing the flow of a heating fluid near a heating fluid inlet. The heating fluid distributor includes an edge wall and a laterally disposed heating fluid distribution plate. Related systems, methods, and uses are also provided.

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Номер записи: 29
14-02-2019 дата публикации

USE OF TREATING ELEMENTS TO FACILITATE FLOW IN VESSELS

Номер: US20190048903A1
Автор: GLOVER JOHN N., HAM PETER GREGORY, SCHNEIDER AUSTIN
Принадлежит: CRYSTAPHASE PRODUCTS, INC.

A method for facilitating the distribution of the flow of one or more streams within a bed vessel is provided. Disposed within the bed vessel are internal materials and structures including multiple operating zones. One type of operating zone can be a processing zone composed of one or more beds of solid processing material. Another type of operating zone can be a treating zone. Treating zones can facilitate the distribution of the one or more streams fed to processing zones. The distribution can facilitate contact between the feed streams and the processing materials contained in the processing zones. 1passing the one or more streams through an upstream processing zone and a downstream processing zone within the process vessel, the upstream processing zone and downstream processing zone each containing one or more beds of processing materials;passing the one or more streams through a redistribution treating zone located between the upstream processing zone and downstream processing zone, wherein the redistribution treating zone comprises a single layer of a fixed, form-fit fibrous mesh material conforming to the interior dimensions of the process vessel; andlaterally dispersing the one or streams with the fibrous mesh material to provide improved contact between the one or more streams and the processing materials in the downstream processing zone.. A method of improving flow distribution of one or more streams in a process vessel comprising: This application is a continuation application and claims the benefit, and priority benefit, of U.S. patent application Ser. No. 15/720,751, filed Sep. 29, 2017, which is a continuation and claims the benefit, and priority benefit, of U.S. patent application Ser. No. 15/676,603, filed Aug. 14, 2017, which claims the benefit and priority benefit of U.S. patent application Ser. No. 15/265,405, filed Sep. 14, 2016, which claims the benefit and priority benefit of U.S. Provisional Patent Application Ser. No. 62/314,069, filed Mar. ...

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Номер записи: 30
13-02-2020 дата публикации

Hydrocarbon Pyrolysis

Номер: US20200048163A1
Автор: Barrai Federico, Hershkowitz Frank, Lattner James R., Mahoney Elizabeth G.
Принадлежит:

The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon upgrading. 124-. (canceled)25. A reactor for pyrolysing a hydrocarbon feed under predetermined pyrolysis conditions , the reactor comprising{'sub': 'R', '(a) an elongated tubular vessel having (i) an internal volume which includes first and second regions and (ii) opposed first and second openings in fluidic communication with the internal volume, the first and second openings being separated by a reactor length (L), and'}{'sub': s', 'p, 'sup': '3', 'claim-text': [ (A) a first aperture, the first aperture being proximate to the first opening and in fluidic communication with the first opening,', '(B) at least one internal channel in fluidic communication with the first aperture, and', {'sub': 1', '1', 'R, '(C) a second aperture, the second aperture being in fluidic communication with the first aperture via a flowpath Lthrough the channel, Lbeing ≥0.1*L; and'}], '(i) the first channeled thermal mass includes, [{'br': None, 'i': t', '*C', '*R*T', '*ΔT', '*X*ΔH*P, 'sub': R', 's', 'p', 'av', 'av', 'P, 'sup': '−1', '([OFA-1]/OFA)=(*ρ)*(t), wherein,'}, "(A) R is the feed's Gas Constant and", {'sub': R', 'av', 'p', 'p', 'av', 'P', 'av, '(B) the predetermined pyrolysis conditions include a residence time in the channel (t)≤1 sec., a feed conversion (X)≥50%, an average total pressure in the channel (P)≥1 bar, an average bulk gas temperature in the channel (T)≤1500° C. at the start of the pyrolysis, a peak gas temperature (T) located in the channel, T>T, a pyrolysis step time tin the range of from 0.001 sec. to 50 sec., and a change in average bulk gas temperature during the pyrolysis (ΔT)≤100° C.'}], '(ii) the OFA is determined from the formula], '(b) a channeled thermal mass located in the first region, wherein the first channeled thermal mass has a ...

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Номер записи: 31
13-02-2020 дата публикации

DEVICE AND METHOD FOR PREPARING PARA-XYLENE AND CO-PRODUCING LIGHT OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER AND BENZENE

Номер: US20200048166A1
Автор: He Changqing, JIA Jinming, LI Chenggong, Li Hua, Liu Zhongmin, TANG Hailong, Wang Xiangao, Ye Mao, Zhang Cheng, ZHANG Jinling, Zhang Tao, ZHAO Yinfeng
Принадлежит: Dalian Institute of Chemical Physics, Chinese Academy of Sciences

A fast fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of benzene, the yield of para-xylene, and the selectivity of light olefins are increased. 124-. (canceled)25. A fast fluidized bed reactor for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene , wherein the fast fluidized bed reactor comprises a first reactor feed distributor and a plurality of second reactor feed distributors , the first reactor feed distributor and the plurality of second reactor feed distributors are sequentially arranged along the gas flow direction in the fast fluidized bed reactor.26. The fast fluidized bed reactor of claim 25 , wherein the number of the second reactor feed distributors is in a range from 2 to 10.27. The fast fluidized bed reactor of claim 25 , wherein the fast fluidized bed reactor comprises a first reactor gas-solid separator and a second reactor gas-solid separator claim 25 , the first reactor gas-solid separator is placed in a dilute phase zone or outside a reactor shell claim 25 , and the second reactor gas-solid separator is placed in the dilute phase zone or outside the reactor shell;the first reactor gas-solid separator is provided with a regenerated catalyst inlet, a catalyst outlet of the first reactor gas-solid separator is placed at the bottom of a reaction zone, and a gas outlet of the ...

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Номер записи: 32
03-03-2016 дата публикации

CATALYST REGENERATORS AND METHODS FOR REGENERATING CATALYSTS

Номер: US20160059198A1
Автор: Makhania Minaz, Panchal Dharmesh Chunilal, Walker Patrick D.
Принадлежит:

Catalyst regenerators and methods of their use are provided. A method includes combusting coke from the catalyst in a second stage regenerator to produce a second flue gas, where the second stage regenerator includes a second combustion chamber and a top having a top cross-sectional area. The coke is partially combusted from the catalyst in a first stage regenerator with a first combustion chamber having a first combustion chamber cross-sectional area greater than the top cross-sectional area. The first stage regenerator is positioned above the top of the second stage regenerator. The first combustion chamber includes a cylindrical section directly over the top and an annular section surrounding the cylindrical section. The second flue gas is vented into the first stage regenerator through a vent tube, and a portion of the second flue gas is dispersed into the annular section of the first combustion chamber. 1. A method of regenerating a catalyst comprising the steps of:combusting coke from the catalyst in a second stage regenerator to produce a second flue gas, wherein the second stage regenerator comprises a second combustion chamber and a top with a top cross-sectional area;partially combusting the coke from the catalyst in a first stage regenerator, wherein the first stage regenerator comprises a first combustion chamber with a first combustion chamber cross-sectional area greater than the top cross-sectional area, wherein the first stage regenerator is positioned above the second stage regenerator, and wherein the top separates the first combustion chamber and the second combustion chamber such that the first combustion chamber comprises a cylindrical section directly over the top and an annular section surrounding the cylindrical section;venting the second flue gas into the first stage regenerator through a vent tube, wherein the vent tube comprises a discharge point; anddispersing a portion of the second flue gas into the annular section of the first ...

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Номер записи: 33
04-03-2021 дата публикации

APPARATUS FOR CATALYTIC REFORMING HYDROCARBONS HAVING FLOW DISTRIBUTOR AND PROCESS FOR REFORMING HYDROCARBONS

Номер: US20210060509A1
Автор: Grott Jeffrey, Lok Ka Leung, Maley John C., Tiwari Amresh Kumar
Принадлежит:

A reforming reactor and process of using same in which a flow distributor distributes the process gas circumferentially to the reactive zone. Feed is injected into the reactor into a non-reactive zone. The non-reactive zone has two portions, a first portion receiving the feed, and a second portion receiving a purge gas. The purge gas will flow from the second portion to the first portion to prevent flow of the feed from the first portion to the second portion. The combined gas may be passed to a reaction zone for catalytic reforming. The first portion and the second portion may be separated by a flow distributor having two horizontal portions connected to opposite ends of a vertical portion. 1. A radial flow reactor comprising:a non-reactive zone separated into a first portion and a second portion by a flow distributor, wherein the flow distributor comprises a first horizontal portion, a second horizontal portion, and a first vertical portion connecting the first and second horizontal portions, and wherein the second horizontal portion comprises, when viewed from a top, a sector shape;a reaction zone disposed below the non-reactive zone and separated from the non-reactive zone by a plate;an inlet for a hydrocarbon feed stream in the non-reactive zone; and,an outlet for an effluent stream in the non-reactive zone, the outlet in fluid communication with the reaction zone.2. The radial flow reactor of claim 1 , wherein the inlet and the outlet are both disposed within the second portion of the non-reactive zone.3. The radial flow reactor of claim 1 , wherein the second horizontal portion comprises a plurality of sections claim 1 , each having claim 1 , when viewed from a top claim 1 , a sector shape.4. The radial flow reactor of claim 1 , wherein the first horizontal portion comprises an upper horizontal portion and the second horizontal portion comprises a lower horizontal portion.5. The radial flow reactor of claim 4 , wherein the flow distributor further comprises a ...

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Номер записи: 34
20-02-2020 дата публикации

FAST FLUIDIZED-BED REACTOR, DEVICE, AND METHOD USING OXYGEN-CONTAINING COMPOUND FOR MANUFACTURING PROPENE OR C4 HYDROCARBON

Номер: US20200055014A1
Автор: He Changqing, JIA Jinming, Liu Zhongmin, TANG Hailong, Wang Xiangao, Ye Mao, ZHANG Jinling, Zhang Tao, ZHAO Yinfeng
Принадлежит: Dalian Institute of Chemical Physics, Chinese Academy of Sciences

A fast fluidized-bed reactor, device and method for preparing propylene and C4 hydrocarbons from oxygen-containing compounds. The device includes the fast fluidized-bed reactor and a fluidized-bed regenerator for regenerating a catalyst. The method includes: a) feeding a raw material containing the oxygen-containing compounds from reactor feed distributors to a dense phase zone of the fast fluidized-bed reactor, and contacting the raw material with a catalyst, to generate a stream containing target product and a spent catalyst containing carbon; b) sending the stream into a product separation system, obtaining propylene, C4 hydrocarbons, light fractions and the like after separation, returning 70 wt. % or more of the light fractions to the dense phase zone of the fast fluidized-bed reactor from the reactor feed distributor. 115-. (canceled)16. A fast fluidized-bed reactor for preparing propylene and C4 hydrocarbons from oxygen-containing compounds , comprising:a reactor shell, one or more reactor feed distributors, a first reactor gas-solid separator, a second reactor gas-solid separator, a reactor heat extractor, a product gas outlet and a reactor stripper, wherein the lower part of the fast fluidized-bed reactor is a dense phase zone, the upper part of the fast fluidized-bed reactor is a dilute phase zone, one and more reactor feed distributors are disposed in the dense phase zone, the reactor heat extractor is disposed inside or outside the reactor shell, the first reactor gas-solid separator and the second reactor gas-solid separator are placed outside the reactor shell, the first reactor gas-solid separator is equipped with a regenerated catalyst inlet, the catalyst outlet of the first reactor gas-solid separator is located at the bottom of the dense phase zone, the gas outlet of the first reactor gas-solid separator is located in the dilute phase zone, the inlet of the second reactor gas-solid separator is located in the dilute phase zone, the catalyst outlet ...

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Номер записи: 35
05-03-2015 дата публикации

FLUIDIZED BED REACTORS INCLUDING CONICAL GAS DISTRIBUTORS AND RELATED METHODS OF FLUORINATION

Номер: US20150064089A1
Автор: Johnson Robert, Tung Hsueh Sung Harry, Yang Terris
Принадлежит:

Embodiments of a fluidized bed fluorination reactor are provided, as are embodiments of a fluidized bed reactor and embodiments of a fluorination method carried-out utilizing a fluidized bed fluorination reactor. In one embodiment, the fluidized bed fluorination reactor includes a source of fluorine gas, a reaction vessel, a windbox fluidly coupled to the source of fluorine gas, and a conical gas distributor fluidly coupled between the reaction vessel and the windbox. The conical gas distributor has a plurality of gas flow openings directing fluorine gas flow from the windbox into the fluorination reaction vessel during the fluorination process. 1. A fluidized bed fluorination reactor , comprising:a source of fluorine gas;a reaction vessel;a windbox fluidly coupled to the source of fluorine gas; anda conical gas distributor fluidly coupled between the reaction vessel and the windbox, the conical gas distributor having a plurality of gas flow openings directing fluorine gas flow from the windbox and into the reaction vessel during the fluorination process.2. A fluidized bed fluorination reactor according to further comprising a solids drain pipe fluidly coupled to the reaction vessel through the conical gas distributor to remove solid aggregates from the reaction vessel during the fluorination process.3. A fluidized bed fluorination reactor according to wherein the conical gas distributor has a solids opening formed in a central portion thereof to which the solids drain pipe is fluidly coupled.4. A fluidized bed fluorination reactor according to wherein the conical gas distributor comprises a conical support wall through which the plurality of gas flow openings is formed claim 2 , the conical support wall converging toward the inlet of the solids drain pipe.5. A fluidized bed fluorination reactor according to wherein the conical support wall forms an angle with the longitudinal axis of reaction vessel between about 30 degrees and 75 degrees claim 4 , as taken in ...

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Номер записи: 36
22-05-2014 дата публикации

Counter-Current Fluidized Bed Reactor for the Dehydrogenation of Olefins

Номер: US20140140895A1
Автор: Lev Davydov, Paolo Palmas, Wolfgang A. Spieker
Принадлежит: UOP LLC

A process and apparatus for the dehydrogenation of paraffins is presented. The process utilizes a reactor that includes a slower flow of catalyst through the reactor, with a counter current flow of gas through the catalyst bed. The catalyst is regenerated and distributed over the top of the catalyst bed, and travels through the bed with the aid of reactor internals to limit backmixing of the catalyst.

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Номер записи: 37
28-02-2019 дата публикации

METHOD FOR PRODUCING POLYOLEFIN AND POLYOLEFIN PRODUCTION SYSTEM

Номер: US20190062465A1
Автор: FUNAOKA Shunpei, ITOGUCHI Satoshi, SURUVU Naganjaneyulu
Принадлежит:

A polyolefin production system is provided. The polyolefin production system includes a plurality of gas-phase polymerization tanks configured to polymerize an olefin gas to form a polyolefin, a compressor comprising an inlet and an outlet and being configured to compress a an olefin-containing gas, an individual gas feed line disposed at each of the gas-phase polymerization tanks and configured to guide the gas fed from the outlet of the compressor to each of the gas-phase polymerization tanks, an individual gas discharge line disposed at each of the gas-phase polymerization tanks and discharging the gas from each of the gas-phase polymerization tanks, and a first valve installed in each of the individual gas feed lines. 1. A polyolefin production system comprising:a plurality of gas-phase polymerization tanks configured to polymerize an olefin gas to form a polyolefin;a compressor comprising an inlet and an outlet and being configured to compress an olefin-containing gas;an individual gas feed line disposed at each of the gas-phase polymerization tanks, configured to guide the gas fed from the outlet of the compressor to each of the gas-phase polymerization tanks;an individual gas discharge line disposed at each of the gas-phase polymerization tanks, configured to discharge the gas from each of the gas-phase polymerization tanks; anda first valve installed in each of the individual gas feed lines.2. The polyolefin production system according to claim 1 , further comprising a particle transfer series line connecting the plurality of the gas-phase polymerization tanks in series.3. The polyolefin production system according to claim 1 , wherein the first valve is a butterfly valve or an eccentric rotary plug valve.4. The polyolefin production system according to claim 1 , further comprising a second valve installed in each of the individual gas discharge lines.5. The polyolefin production system according to claim 4 , wherein the second valve is a butterfly valve or ...

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Номер записи: 38
27-02-2020 дата публикации

DEVICE FOR TREATING PARTICLES IN A ROTATING FLUIDIZED BED

Номер: US20200061568A1
Автор: DE BROQUEVILLE Axel, DE WILDE Juray, TOURNEUR Thomas
Принадлежит:

Device for treating particles having a vortex chamber defined by end walls at both ends and a circular wall, a rotation imparting device with a fluid feeder arranged in a mainly tangential direction, a particle outlet and a central fluid outlet, an auxiliary chamber coaxially arranged with the vortex chamber defining a treating zone, which auxiliary chamber has a circular outer wall and an end wall and opens into the vortex chamber through an opening in the end wall of the vortex chamber opposite the central fluid outlet, a device for injecting particles coaxially into the treating zone, and a device for feeding a treating fluid into the treating zone in mainly axial direction, wherein the ratio of the area of the opening to the cross-sectional area of the vortex chamber is less than 0.50. 1. Device for treating particles , comprising a vortex chamber defined by end walls at both ends and a circular wall , a rotation imparting device comprising a fluid feeder arranged in a mainly tangential direction , a particle outlet and a central fluid outlet , an auxiliary chamber coaxially arranged with the vortex chamber defining a treating zone , which auxiliary chamber has a circular outer wall and an end wall and opens into the vortex chamber through an opening in the end wall of the vortex chamber opposite the central fluid outlet , a device for injecting particles coaxially into the treating zone , and a device for feeding a treating fluid into the treating zone in mainly axial direction , wherein the ratio of the area of the opening to the cross-sectional area of the vortex chamber is less than 0.50.2. Device according to claim 1 , wherein the ratio of the area of the opening to the cross-sectional area of the vortex chamber is less than 0.40 claim 1 , suitably in the range of from 0.04 to 0.25 and more suitably in the range of from 0.02 to 0.25.3. Device according to claim 1 , wherein the device for feeding treating fluid into the treating zone is arranged near the end ...

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Номер записи: 39
17-03-2016 дата публикации

FLUIDIZING DEVICE

Номер: US20160074827A1
Автор: Boeber Reinhard, Jacob Michael, Pila Raoul, PRITZKE Heinz
Принадлежит: GLATT INGENIEURTECHNIK GMBH

The invention starts out from a fluidizing apparatus () for conditioning solid particles, consisting of a distribution chamber (), a turbulence chamber (), wherein the turbulence chamber () has separating walls () or the like for conveying solid particles along a conveyor path, a solid particle inlet unit () as well as a solid particle outlet unit () and a flow receiving base (), wherein an air distribution plate () is arranged below the flow receiving base (), and opening ratios, which result through openings () in the air distribution plate (), vary. 11233133110286267321130: A fluidizing apparatus () for conditioning solid particles , comprising a distribution chamber () , a turbulence chamber ( , ) , wherein the turbulence chamber ( , ) has separating walls ( , ) or the like for conveying solid particles along a conveyor path , a solid particle inlet unit ( , ) as well as a solid particle outlet unit ( , ) and a flow receiving base ( , ) ,{'b': 18', '33', '11', '30', '22', '19', '33, 'an air distribution plate (, ) is arranged below the flow receiving base (, , wherein opening ratios, which result through openings () in the air distribution plate (, ), vary.'}21: The fluidizing apparatus () according to claim 1 ,{'b': 18', '33', '3', '31, 'wherein the opening ratios of the air distribution plate (, ) change with an increasing conveyor path of the solid particles, which are to be conditioned, in the turbulence chamber (, ).'}31: The fluidizing apparatus () according to claim 1 ,{'b': 18', '33', '22, 'wherein a variation of the opening ratios takes place on the air distribution plate (, ) as a function of the cross section of the openings ().'}41: The fluidizing apparatus () according to claim 1 ,{'b': 12', '27', '6', '26', '7', '32', '1, 'wherein at least one processing chamber (, ) is located between the solid particle inlet unit (, ) and the solid particle outlet unit (, ) of the fluidizing apparatus (), so that a backmixing with the solid particles, which have ...

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Номер записи: 40
05-03-2020 дата публикации

FLUIDIZING GAS NOZZLE HEAD AND A FLUIDIZED BED REACTOR WITH MULTIPLE FLUIDIZING GAS NOZZLE HEADS

Номер: US20200072460A1
Автор: Kauppinen Kari, KLAJNY Marcin
Принадлежит:

A fluidizing gas nozzle head suitable to be connected to a fluidizing gas feeding device of a fluidized bed reactor. The fluidizing gas nozzle head includes an inlet channel having a longitudinal axis, an inlet end, and a second end, the inlet end of the inlet channel being adapted to connect the inlet channel in vertical gas flow connection with the fluidizing gas feeding device, four outlet channels, each of the four outlet channels extending from a first end to an outlet end, and a gas distribution space having a bottom face and a ceiling opposite to the bottom face. The second end of the inlet channel and the first ends of the four outlet channels are connected to direct gas flow connection with the gas distribution space. Each of the first ends of the four outlet channels has a central point, which central points define a rectangle with two long sides and two short sides having an aspect ratio of at least 2:1. 115.-. (canceled)16. A fluidizing gas nozzle head suitable to be connected to a fluidizing gas feeding device of a fluidized bed reactor , the fluidizing gas nozzle head comprising:(A) an inlet channel having a longitudinal axis, an inlet end, and a second end, the inlet end of the inlet channel being adapted to connect the inlet channel in vertical gas flow connection with the fluidizing gas feeding device;(B) four outlet channels, each of the four outlet channels extending from a first end to an outlet end; and(C) a gas distribution space having a bottom face and a ceiling opposite to the bottom face,wherein the second end of the inlet channel and the first ends of the four outlet channels are connected to direct gas flow connection with the gas distribution space, andwherein each of the first ends of the four outlet channels has a central point, which central points define a rectangle with two long sides and two short sides having an aspect ratio of at least 2:1, and the gas distribution space being divided by a division wall into two identical halves ...

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Номер записи: 41
14-03-2019 дата публикации

WALLS FOR CATALYTIC BEDS OF RADIAL- OR AXIAL-FLOW REACTORS

Номер: US20190076805A1
Автор: Filippi Ermanno, Rizzi Enrico, Tarozzo Mirco
Принадлежит:

Radial or axial-radial flow catalytic chemical reactor comprising a cylindrical shell and at least one catalytic bed and comprising a plurality of perforated tubes, said tubes having an open end communicating with an inlet of a gaseous flow of reagents in the reactor, said tubes being provided with a plurality of holes on their side surface, said tubes being arranged around the catalytic bed so as to form an outer wall which bounds the catalytic bed and which distributes the reagents inside said bed; each of said tubes being formed by means of longitudinal or helical butt welding of a perforated strip. 114-. (canceled)15. A radial flow or an axial-radial flow catalytic chemical reactor , comprising:a cylindrical shell;at least one catalytic bed; anda plurality of perforated tubes that are arranged around the at least one catalytic bed to form a distributor of reagents into said at least one catalytic bed;wherein each of said plurality of perforated tubes include an open end in communication with an inlet of a gaseous flow of reagents in the catalytic chemical reactor, and a closed end opposite to said inlet end;wherein each of said plurality of perforated tubes includes a butt welded perforated strip or a butt welded perforated metal sheet.16. The radial flow or axial-radial flow catalytic chemical reactor of claim 15 , wherein the butt welded perforated strip or the butt welded perforated metal sheet is automatically butt welded.17. The radial flow or axial-radial flow catalytic chemical reactor of claim 15 , wherein said butt welded perforated strip is helically wound and helically welded.18. The radial flow or axial-radial flow catalytic chemical reactor of claim 15 , wherein said butt weld of each of said plurality of perforated tubes includes a straight longitudinal butt weld.19. The radial flow or axial-radial flow catalytic chemical reactor of claim 15 , wherein each of said plurality of perforated tubes is cylindrical and has a circular cross-section.20. The ...

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Номер записи: 42
14-03-2019 дата публикации

Methods and apparatus for fluid contacting in a downflow vessel

Номер: US20190076806A1
Автор: Christopher Naunheimer, Pengfei Chen, Peter H. SHAFE, Zhanping Xu
Принадлежит: UOP LLC

A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.

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Номер записи: 43
23-03-2017 дата публикации

Process and apparatus for regenerating catalyst

Номер: US20170080413A1
Автор: II Richard A. Johnson, James W. Althoff, Mohammad-Reza Mostofi-Ashtiani, Paolo Palmas, Quan Yuan
Принадлежит: UOP LLC

A baffle is installed on the wall of a regenerator vessel to push catalyst away from the wall to ensure adequate exposure to regeneration gas and complete combustion of coke from the catalyst. We have found that in deep beds, catalyst can flow down the walls and escape sufficient exposure to regeneration gas and undergo too little regeneration.

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Номер записи: 44
25-03-2021 дата публикации

Method and Reactor for Oxidative Coupling of Methane

Номер: US20210087121A1
Автор: Balakotaiah Vemuri, Gu Tian, SARSANI Sagar, WEST David
Принадлежит:

A method of autothermal oxidative coupling of methane (OCM) utilizes introducing a methane-containing feedstock and an oxygen-gas-containing feedstock into a reactor () as a flowing mixture () with a space time of 500 ms or less. The reactor () contains a catalyst bed () of an OCM catalyst that contacts the flowing mixture and wherein the catalyst bed () has a heat Peclet number (Pe) of from 5 or less, a mass Peclet number (Pe) of from 5 or more, and a transverse Peclet number (P) of from 1 or less while contacting the flowing mixture. The methane and oxygen of the feedstocks are allowed to react within the reactor () to form methane oxidative coupling reaction products. A reactor () for carrying out the OCM reaction is also disclosed. 1. A method of carrying out autothermal oxidative coupling of methane (OCM) comprising:{'sub': h', 'm, 'introducing a methane-containing feedstock and an oxygen-gas-containing feedstock into a reactor as a flowing mixture with a space time of 500 ms or less, the reactor containing a catalyst bed of an OCM catalyst that contacts the flowing mixture and wherein the catalyst bed has a heat Peclet number (Pe) of from 5 or less, a mass Peclet number (Pe) of from 5 or more, and a transverse Peclet number (P) of from 1 or less while contacting the flowing mixture; and'}allowing the methane and oxygen of the feedstocks to react within the reactor to form methane oxidative coupling reaction products.2. The method of claim 1 , wherein: a layer of OCM catalyst formed as catalyst particles having a particle size of from 0.1 mm to 3 mm;', 'at least one monolithic body of one of a ceramic or metal material having pores or channels with a pore or channel size from 0.1 to 5 mm, the monolithic body having an OCM catalyst material present on at least all or a portion of the surface of the monolithic body;', 'at least one monolithic body of one of a ceramic or metal material having pores or channels with a pore or channel size from 0.1 to 5 mm, and ...

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Номер записи: 45
02-04-2015 дата публикации

GENERATING CATALYSTS FOR FORMING CARBON ALLOTROPES

Номер: US20150093323A1
Автор: JR. Russell J., Koveal, Noyes Dallas B., Ring Terry A.
Принадлежит:

A system and methods for forming carbon allotropes are described. The system includes a reactor configured to use a catalyst to form a carbon allotrope from a feed stock in a Bosch reaction. The catalyst includes a roughened metal surface. 1. A system for the production of a carbon allotrope , comprisinga reactor configured to use a catalyst to form the carbon allotrope from a feed stock in a Bosch reaction; andthe catalyst, wherein the catalyst comprises a roughened metal surface.2. The system of claim 1 , wherein the feed stock comprises at least about 10 mol % oxygen.3. The system of claim 1 , wherein the catalyst comprises comminuted metal fragments.4. The system of claim 1 , wherein the catalyst comprises metal shot-blasting beads.5. The system of claim 1 , wherein the catalyst comprises particles between about 25 μm and 600 μm in size.6. The system of claim 1 , wherein the catalyst comprises particles between about 250 and 589 micrometers.7. The system of claim 1 , wherein the catalyst comprises iron.8. The system of claim 7 , wherein the catalyst comprises nickel claim 7 , chromium claim 7 , or any combinations thereof.9. The system of claim 1 , wherein the catalyst comprises metal shavings.10. The system of claim 1 , wherein the catalyst comprises metal fibers.11. The system of claim 1 , wherein the catalyst comprises metal particles.12. The system of claim 1 , wherein the catalyst comprises hematite claim 1 , magnetite claim 1 , or Wüstite claim 1 , or any combinations thereof.13. The system of claim 1 , wherein the catalyst comprises iron carbide.14. The system of claim 1 , wherein the catalyst comprises a mixture of active metal particles and inactive particles.15. The system of claim 14 , wherein the inactive particles slow the formation rate for the carbon allotrope.16. The system of claim 14 , wherein the inactive particles comprise alumina claim 14 , cerium oxides claim 14 , titania claim 14 , zirconia claim 14 , or CrO claim 14 , or any combinations ...

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Номер записи: 46
19-03-2020 дата публикации

Process for producing unsaturated nitrile

Номер: US20200087251A1
Автор: Dai NAGATA, Sho Tamura
Принадлежит: Asahi Kasei Corp

A process for producing unsaturated nitrile, using a fluidized bed reactor and comprising a reaction step of subjecting hydrocarbon to a vapor phase catalytic ammoxidation reaction in the presence of a catalyst to produce the corresponding unsaturated nitrile, wherein when an internal space of the reactor is divided into two spaces of an upper space occupying a space from an upper end of an inlet of a cyclone to an upper end of the internal space and a lower space occupying a space below the upper end of the inlet of the cyclone and ranging to a dispersion plate, a ratio of an existing amount of the catalyst in the upper space to an existing amount of the catalyst in the lower space is 0.05 to 0.45 in the reaction step.

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Номер записи: 47
09-04-2015 дата публикации

CERAMIC OXYGEN TRANSPORT MEMBRANE ARRAY REACTOR AND REFORMING METHOD

Номер: US20150098868A1
Автор: CHRISTIE GERVASE MAXWELL, Doraswami Uttam R., Gonzalez Javier E., KELLY Sean M., ROBINSON Charles, WILSON Jamie R.
Принадлежит:

The invention relates to a commercially viable modular ceramic oxygen transport membrane reforming reactor configured using repeating assemblies of oxygen transport membrane tubes and catalytic reforming reactors. 1. An oxygen transport membrane tube assembly comprising:a plurality of ceramic oxygen transport membrane tubes coupled together in series such that the tube assembly has a first end configured to be in fluid communication with a feed manifold and a second end configured to be in fluid communication with an exhaust manifold;a plurality of ceramic to ceramic coupling elements coupling respective ends of adjacent ceramic oxygen transport membrane tubes;a first ceramic to metal coupling element connected to the first end of the oxygen transport membrane tube assembly and configured to connect to a feed manifold such that the plurality of ceramic oxygen transport membrane tubes are in fluid communication with the feed manifold;a second ceramic to metal coupling element connected to the second end of the oxygen transport membrane tube assembly and configured to connect to an exhaust manifold such that the plurality of ceramic oxygen transport membrane tubes are in fluid communication with the exhaust manifoldwherein the plurality of coupled oxygen transport membrane tubes comprise a tubular porous support comprising an oxide material, a dual phase intermediate porous layer comprising a mixture of an electrically conducting perovskite structured material and an ionically conducting fluorite structure material, the intermediate porous layer disposed on the porous support; and a dual phase dense layer comprising a mixture of an electrically conducting perovskite structured material and an ionically conducting fluorite structure material, wherein the interior surface of the porous support defines a reactive side of the oxygen transport membrane tube and the outermost surface of the oxygen transport membrane tube defines a retentate side;wherein the plurality of ...

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Номер записи: 48
09-04-2015 дата публикации

Ceramic oxygen transport membrane array reactor and reforming method

Номер: US20150098872A1
Автор: Charles Robinson, Gervase Maxwell Christie, Jamie R. WILSON, Javier E. Gonzalez, Lee J. Rosen, Sean M. Kelly, Uttam R. DORASWAMI
Принадлежит: Praxair Technology Inc

A commercially viable modular ceramic oxygen transport membrane reforming reactor for producing a synthesis gas that improves the thermal coupling of reactively-driven oxygen transport membrane tubes and catalyst reforming tubes required to efficiently and effectively produce synthesis gas.

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Номер записи: 49
14-04-2016 дата публикации

SEPARATION DEVICE FOR USE IN FLUIDIZED BED REACTOR, REACTION REGENERATION APPARATUS AND PROCESS FOR PREPARING OLEFINS, AND PROCESS FOR PREPARING AROMATIC HYDROCARBONS

Номер: US20160101396A1
Автор: GU Songyuan, JIN Yongming, Li XiaoHong, QI Guozhen, Xu Jun, YU Zhinan, ZHONG Siqing
Принадлежит:

Device for use in a fluidized bed reactor includes a gas-solid separator communicated with an outlet of the fluidized bed reactor; a vertically arranged damper, a solid outlet of the gas-solid separator communicated with a lower region of the damper, a gas outlet of the gas-solid separator communicated with an upper region of the damper; a fine gas-solid separator, an inlet of the fine gas-solid separator communicated with the upper region of the damper, and a solid outlet of the fine gas-solid separator communicated with the lower region of the damper. Product from the fluidized bed reactor is fed into the preliminary gas-solid separator, most solid catalysts separated and fed into the lower region; the product entraining the rest catalysts is fed into the upper region, and into the fine gas-solid separator, the rest catalysts fed into the lower region; and final product is obtained from the fine gas-solid separator. 1. A separation device for use in a fluidized bed reactor , comprisinga preliminary gas-solid separator communicated with an outlet of the fluidized bed reactor,a vertically arranged damper, a solid outlet of the preliminary gas-solid separator being communicated with a lower region of the damper, and a gas outlet of the preliminary gas-solid separator being communicated with an upper region of the damper, anda fine gas-solid separator, an inlet of the fine gas-solid separator being communicated with the upper region of the damper, and a solid outlet of the fine gas-solid separator being communicated with the lower region of the damper, whereinthe separation device is configured so that product having catalysts entrained therein from the fluidized bed reactor is fed into the preliminary gas-solid separator, most solid catalysts being separated and fed into the lower region of the damper; the product entraining the rest catalysts is fed into the upper region of the damper, and into the fine gas-solid separator, the rest catalysts being separated and fed ...

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Номер записи: 50
14-04-2016 дата публикации

FLUIDIZED BED REACTOR, REACTION REGENERATION APPARATUS, PROCESS FOR PREPARING OLEFINS, AND PROCESS FOR PREPARING AROMATIC HYDROCARBONS

Номер: US20160102033A1
Автор: Li XiaoHong, QI Guozhen, Xu Jun, YANG Weimin, YU Zhinan, ZHONG Siqing
Принадлежит:

A fluidized bed reactor is provided, comprising an inlet zone at a lower position, an outlet zone at an upper position, and a reaction zone between the inlet zone and the outlet zone. A guide plate with through holes is disposed in the reaction zone, comprising a dense channel region in an intermediate region thereof and a sparse channel region disposed on a periphery thereof and encompassing the dense channel region. Catalysts in said fluidized bed reactor can be homogeneously distributed in the reaction zone thereof, whereby the reaction efficiency can be improved. A reaction regeneration apparatus comprising said fluidized bed reactor, and a process for preparing olefins from oxygenates and a process for preparing aromatic hydrocarbons from oxygenates using the reaction regeneration apparatus. 1. A fluidized bed reactor , comprising an inlet zone at a lower position , an outlet zone at an upper position , and a reaction zone between the inlet zone and the outlet zone , whereina guide plate is disposed in the reaction zone, comprising a dense channel region in an intermediate region thereof and a sparse channel region disposed on a periphery thereof encompassing the dense channel region.2. The fluidized bed reactor according to claim 1 , wherein a dimension of a channel in the dense channel region is smaller than that of a channel in the sparse channel region.3. The fluidized bed reactor according to claim 2 , wherein a ratio of the dimension of the channel in the dense channel region to that of the channel in the sparse channel region is in a range of 1:4 to 2:3.4. The fluidized bed reactor according to claim 3 , wherein the dimension of the channel in the dense channel region is in a range of 0.01 m to 0.08 m.5. The fluidized bed reactor according to claim 1 , wherein the dense channel region and the sparse channel region each comprise a circular plate having evenly distributed pores claim 1 , or a plurality of concentric ring shaped sloping panels spaced apart ...

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Номер записи: 51
23-04-2015 дата публикации

METHOD FOR REVAMPING A SECONDARY REFORMER

Номер: US20150107074A1
Автор: Beretti Andrea, Zanichelli Luca
Принадлежит: Cassale SA

A method for revamping a secondary reformer (), the reformer comprising an internal gas riser pipe () for routing a process gas from a bottom gas inlet to a combustion chamber () located above a catalytic zone (), distribution means () for introduction of an oxidation agent such as process air into said combustion chamber, wherein the original distribution means of the oxidation agent are discontinued, the gas riser pipe is shortened () and the outlet end of the shortened gas riser pipe is arranged to deliver a gas flow directed upwards; a new burner () is installed on top of the reactor, said new burner being arranged to deliver an oxidization agent such as process air with a downward flow, thus obtaining a counterflow mixing zone () and formation of a diffusion flame above the outlet end of the gas riser pipe. 1. A method for revamping a secondary reformer wherein said reformer comprises:a vertical pressure vessel,a bottom inlet for a process gas;a combustion chamber and a catalytic zone, the catalytic zone being located below the combustion chamber;an internal gas riser pipe connected to said bottom inlet of a process gas;distribution means for introduction of an oxidation agent such as process air into said combustion chamber;wherein said gas riser pipe has a gas outlet end which is above the combustion chamber and comprises means arranged to direct the process gas downwards, so that said process gas traverses the combustion chamber and then the catalytic zone flowing from top to bottom, and the method comprises at least the following steps:discontinuing the original distribution means of the oxidation agent,shortening the gas riser pipe so that the gas outlet end of the gas riser pipe is brought to a lower height in the pressure vessel and closer to the catalytic zone, compared to the original gas riser pipe, and the outlet end of the shortened gas riser pipe is arranged to deliver a gas flow directed upwards; andinstalling a new burner on top of the reactor, ...

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Номер записи: 52
04-04-2019 дата публикации

CARBON MONOXIDE OXIDATION DEVICE

Номер: US20190099727A1
Автор: EKDUNGE Per, GHIRELLI Federico, TOFTEFORS Ida
Принадлежит: POWERCELL SWEDEN AB

A carbon monoxide oxidation device for oxidizing carbon monoxide contained in a hydrogen rich reformat gas includes a housing, wherein the housing incorporates an oxidation catalyst, which is adapted to oxidize the carbon monoxide of the reformat gas by an oxidizing agent to carbon dioxide, includes upstream of the catalyst at least one gas inlet for providing a gas stream of at least the reformat gas into the housing, includes downstream of the catalyst a gas outlet for exiting treated gas from the housing, and incorporates a gas stream perturbation device which is arranged upstream of the catalyst and which is adapted to provide a perturbation in the gas stream, wherein the gas stream perturbation device is designed as at least one propeller-shaped plate with a plate portion having a surface facing the gas stream and at least one blade which is connected to the plate portion and has a leading edge and an effluent edge, wherein a surface defined between leading edge and effluent edge is inclined in relation to the surface of the plate portion with a predetermined blade inclination angle, thereby defining at least one opening in the plate. 1. Water gas shift reactor or preferential oxidation reactor , which purifies a carbon monoxide containing hydrogen rich reformat gas from carbon monoxide contained in the carbon monoxide containing hydrogen rich reformate gas , wherein the water gas shift reactor or the preferential oxidation reactor comprises a housing , wherein the housinga. incorporates an oxidation catalyst, which oxidizes the carbon monoxide of the carbon monoxide containing hydrogen rich reformat gas by means of an oxidizing agent to carbon dioxide,b. comprises upstream of the catalyst at least one gas inlet for providing a gas stream (B; C) of at least the carbon monoxide containing hydrogen rich reformat gas into the housing,c. comprises downstream of the catalyst a gas outlet for exiting purified hydrogen rich gas from the housing, andd. incorporates a ...

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Номер записи: 53
02-06-2022 дата публикации

GAS-SOLID CONTACTING DEVICE

Номер: US20220168700A1
Автор: Bergman Peter Christiaan Albert, Boers Robert Johan, Oltvoort Evert-Jan
Принадлежит:

A device for processing a flow of particulate material by contact with a gas flow includes a housing defining a processing chamber. This chamber includes a gas distribution plate having openings. The gas distribution plate separates a lower gas plenum from a solid-gas contact zone. The contact zone has at least one cylindrical partition upstanding from the gas distribution plate dividing an inner section from an adjacent annular outer section. The at least one partition is provided with a transfer opening for the particulate material. The housing is also provided with an inlet for supplying particulate material to the inner section and an outlet for discharging processed particulate material from the annular outer section. 118.-. (canceled)19. A device for processing a flow of particulate material by contact with a gas flow , comprisinga housing defining a processing chamber and having a gas inlet for introducing a gas flow in a plenum of the processing chamber,wherein the processing chamber comprisesthe plenum, arranged at the lower part of the processing chamber,a contact zone, arranged above the plenum, for contacting the flow of particulate material with the gas flow,wherein the plenum and contact zone are separated by a gas distribution plate,wherein the contact zone comprises a contact path for contact between the flow of particulate material and the gas flow, the contact zone having multiple cylindrical partitions upstanding from the gas distribution plate dividing an inner section of the contact path from an adjacent annular outer section, wherein each partition is provided with a transfer opening configured to allow passage of the particulate material from the inner section to the adjacent annular outer section of the contact path separated by the respective partition, wherein the inner section of the contact path is an annular inner section, and wherein the transfer opening of an inward partition and the transfer opening in an adjacent outward partition ...

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Номер записи: 54
29-04-2021 дата публикации

FLUIDIZED BED DEVICE AND METHOD FOR PREPARING PARA-XYLENE AND CO-PRODUCING LIGHT OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER AND BENZENE

Номер: US20210121842A1
Автор: He Changqing, JIA Jinming, LI Chenggong, Li Hua, Liu Zhongmin, TANG Hailong, Wang Xiangao, Ye Mao, Zhang Cheng, ZHANG Jinling, Zhang Tao, ZHAO Yinfeng
Принадлежит: Dalian Institute of Chemical Physics, Chinese Academy of Sciences

A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of benzene, the yield of para-xylene, and the selectivity of light olefins are increased. The turbulent fluidized bed reactor includes a first reactor feed distributor and a number of second reactor feed distributors; the first reactor feed distributor and the plurality of second reactor feed distributions are sequentially arranged. 126-. (canceled)27. A turbulent fluidized bed reactor for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene , the turbulent fluidized bed reactor comprising a first reactor feed distributor and a plurality of second reactor feed distributors , the first reactor feed distributor and the plurality of second reactor feed distributors are sequentially arranged along the gas flow direction in the turbulent fluidized bed reactor; andthe number of the second reactor feed distributors is in a range from 2 to 10.28. The turbulent fluidized bed reactor of claim 27 , the turbulent fluidized bed reactor further comprises a first reactor gas-solid separator and a second reactor gas-solid separator claim 27 , the first reactor gas-solid separator is placed in a dilute phase zone or outside a reactor shell claim 27 , and the second reactor gas-solid separator is placed in the dilute phase zone or outside the reactor ...

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Номер записи: 55
02-04-2020 дата публикации

Fluidizing plate and apparatus comprising such a fluidizing plate

Номер: US20200101433A1
Автор: Egon SCHMIDT, Juergen Freiberg, Michael LAIBLE, Norbert Eugen VOLL, Oskar Stephan, Reiner GIESE
Принадлежит: BASF SE

The invention relates to a fluidizing plate, comprising a supporting structure and plate segments, the plate segments respectively having openings through which gas flows during operation. The plate segments are respectively releasably connected to the supporting structure and two neighboring plate segments respectively overlap and are releasably connected to one another in the region of the overlap. The invention also relates to an apparatus with such a fluidizing plate.

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Номер записи: 56
11-04-2019 дата публикации

Methods and apparatus for fluid contacting in a downflow vessel

Номер: US20190105627A1
Автор: Christopher Naunheimer, Pengfei Chen, Zhanping Xu
Принадлежит: UOP LLC

A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone

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Номер записи: 57
11-04-2019 дата публикации

METHODS AND APPARATUS FOR FLUID CONTACTING IN A DOWNFLOW VESSEL

Номер: US20190105629A1
Автор: Chen Pengfei, Lesniak Steven J., Naunheimer Christopher, Xu Zhanping
Принадлежит:

A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone. 1. A device for fluid contacting in a downflow vessel , comprising:a liquid collection tray;a generally annular mixing channel having an inlet in communication with the liquid collection tray for contacting vapor and liquid;a generally annular liquid separation channel having an inlet in fluid communication with an outlet of the mixing channel and positioned inwardly thereof for separating at least a portion of liquid and vapor flowing therethrough;a vapor chimney positioned inwardly of the liquid separation channel having a chimney wall extending above a bottom wall of the liquid separation channel to restrict flow of liquid through the chimney; anda chimney opening in communication with the annular liquid separation channel for passing vapor therethrough.2. The device of claim 1 , wherein the liquid separation channel further includes an outer wall claim 1 , an inner wall claim 1 , and a top wall; andan opening through the liquid separation channel bottom wall for distributing liquid therethrough.3. The device of claim 1 , wherein the liquid separation channel includes an outer wall and a liquid separation channel passageway is defined between the outer wall and the chimney wall.4. The device of claim 1 , further comprising a top plate covering at least a portion of the annular liquid separation channel and the vapor chimney claim 1 ,a first baffle extending upwardly from the liquid collection tray forming an outer wall of the liquid separation channel; anda second baffle extending upwardly from the liquid collection tray defining an inner wall of the liquid separation channel and the vapor chimney, ...

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Номер записи: 58
27-04-2017 дата публикации

REACTOR INLET VAPOR VELOCITY EQUALIZER AND DISTRIBUTOR

Номер: US20170113199A1
Автор: Oshinowo Olanrewaju M., Palmer Brad P.
Принадлежит: Phillips 66 Company

The invention relates to distributing feed vapor more evenly across the interior space of a reactor vessel utilizing a distributor pipe at the inlet end that initially directs the flow of reactants through a flange plate and a series of ring plates. The ring plates are physical spaced such that vapor along the wall of the inlet is mildly obstructed by the flange plate and the ring plates cause the vapor to alter course temper down any diverse velocities that may create hot spots within the catalyst bed. At the end of the distributor pipe is a deflector which directs the feed vapor upwardly and outwardly in the head space of the reactor vessel. 1. A reactor system comprising:a) a reactor vessel including a closed shell defining a relatively large interior space inside the shell for conducting a fixed bed catalytic reaction, an inlet into the interior space of the shell for the admission of feed vapor, an outlet at the opposite end thereof to allow products of the catalytic reaction to exit the reactor vessel, a bed of catalyst between the inlet and the outlet and a head space between the inlet and the catalyst bed, wherein the inlet includes a generally cylindrical neck having a smaller internal cross sectional dimension than a comparable internal cross sectional dimension of the relatively large interior space within the shell of the reactor vessel;b) a generally cylindrical distributor pipe extending down through the generally cylindrical neck and into the head space of the reactor vessel, wherein the generally cylindrical distributor pipe has a peripheral wall, a first end through which feed vapor is received and an opposite end that is positioned in the head space of the reactor vessel, wherein the feed vapor is arranged to exit the generally cylindrical distributor pipe through openings extending radially outwardly through the peripheral wall of the distributor pipe adjacent the opposite end of the distributor pipe and into the headspace and further wherein the ...

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Номер записи: 59
04-05-2017 дата публикации

PLUG FLOW REACTOR WITH INTERNAL RECIRCULATION FLUIDIZED BED

Номер: US20170120211A1
Автор: ADHAM KAMAL, HARRIS CHRISTOPHER THOMAS, Kokourine Alexandre
Принадлежит:

A reactor comprises an outer sidewall and a bottom wall enclosing a hollow chamber comprising a lower fluidized bed zone and an upper freeboard zone. A plurality of inlets is provided for injecting at least one fluidizing medium into the fluidized bed zone and creating a swirling flow. At least one feed inlet communicates with the fluidized bed zone; and at least one product outlet is provided for removing a product from the chamber, the outlet(s) communicating with either the fluidized bed zone or the freeboard zone. The reactor has at least one internal barrier located inside the hollow chamber, and at least partly located in the fluidized bed zone. The internal barrier(s) have at least one opening within the fluidized bed zone, such as an underflow opening, to permit internal recirculation of material from the product zone to the feed zone, thereby simplifying reactor structure. 1. A reactor comprising:an outer sidewall and a bottom wall enclosing a hollow chamber in the form of a closed loop for circulation of a fluidized bed, the hollow chamber comprising a lower fluidized bed zone and an upper freeboard zone, wherein the outer sidewall has a substantially cylindrical shape, and has a central axis;a plurality of fluidizing medium inlets for injection of at least one fluidizing medium into the fluidized bed zone, wherein the fluidizing medium inlets comprise gas and/or liquid injectors which are directed in a direction of the swirling fluid flow and which are adapted to create a circumferential, swirling flow of material in the fluidized bed zone;at least one feed inlet communicating with the fluidized bed zone;at least one product outlet for removing a product from the chamber, wherein the at least one product outlet communicates with either the fluidized bed zone or the freeboard zone; andat least one internal barrier located inside the hollow chamber and at least partly located in the fluidized bed zone, wherein each said internal barrier is positioned to ...

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Номер записи: 60
25-04-2019 дата публикации

A REACTOR COMPRISING A NOZZLE FOR CLEANING FLUID, A KIT AND A METHOD

Номер: US20190118151A1
Автор: Byström Emil, Eklund Lars, IRGUM Knut
Принадлежит: Spinchem AB

The invention refers to a reactor and a method respectively for performing, by means of solid reaction members, a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic media, and a subsequent cleaning of the reactor, said reactor comprising a vessel () in which a transformation device () has been mounted. The invention also refers to a reactor kit comprising such reactor. The reactor comprises at least one nozzle () arranged on the longitudinal inner wall of the vessel (). The at least one nozzle () is arranged to direct a flow of a cleaning fluid (CF) in a direction towards a longitudinal centre axis (L) of a flow distributor () arranged in the vessel (). 2. A reactor according to claim 1 , in which the reactor comprises a plurality of nozzles claim 1 , the plurality of nozzles being distributed along the circumference and/or along the longitudinal extension of the longitudinal inner wall of the vessel claim 1 , and wherein the plurality of nozzles are arranged to direct a flow of a cleaning fluid in a direction towards the longitudinal centre axis of the flow distributor.311. A reactor according to claim 1 , wherein the nozzle(s) is/are supported by one or several supports arranged to extend in the longitudinal direction along the longitudinal inner wall of the vessel ().4. A reactor according to claim 3 , wherein the one or several supports form part of an insert.5. A reactor according to claim 3 , wherein each support comprises two or more nozzles distributed along the longitudinal extension of the support claim 3 , and wherein two adjacent nozzles are arranged to provide a longitudinally and continuously uniform spray pattern.6. A reactor according to claim 1 , wherein an inner wall of the vessel comprises means for enhancing the fluidic shear stress in any of the two rotary directions along said inner wall.7. A reactor according to claim 6 , wherein said means for enhancing the fluidic shear stress is ...

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Номер записи: 61
16-04-2020 дата публикации

METHODS OF PRODUCING LINEAR ALPHA OLEFINS

Номер: US20200115296A1
Автор: Al-Shahrani Dafer Mubarak, Azam Shahid, Meier Tobias, Meiswinkel Andreas, Müller Wolfgang, Noack Ralf, Schmaderer Harald, Wöhl Anina, Zander Hans-Jörg
Принадлежит:

A method of producing linear alpha olefins includes: introducing a catalyst stream and a first solvent stream to a reactor, wherein the reactor comprises a distributor; introducing a second solvent stream above the distributor, wherein the catalyst stream, the first solvent stream, and the second solvent stream form a reaction solution; introducing a feed stream to the reactor; passing the feed stream through the distributor; and passing the feed stream through the reaction solution, producing an oligomerization reaction forming the linear alpha olefins. 1. A method of producing linear alpha olefins , comprising:introducing a catalyst stream and a first solvent stream to a reactor, wherein the reactor comprises a distributor;introducing a second solvent stream above the distributor, wherein the catalyst stream, the first solvent stream, and the second solvent stream form a reaction solution;introducing a feed stream to the reactor;passing the feed stream through the distributor; andpassing the feed stream through the reaction solution, producing an oligomerization reaction forming the linear alpha olefins.2. The method of claim 1 , wherein the catalyst stream comprises a chromium source claim 1 , a modifier claim 1 , a ligand claim 1 , an organoaluminum compound claim 1 , or a combination comprising at least one of the foregoing.3. The method of claim 1 , wherein the first solvent stream and/or the second solvent stream comprises an alkane claim 1 , an aromatic hydrocarbon claim 1 , an olefin claim 1 , or a combination comprising at least one of the foregoing.4. The method of claim 1 , wherein the reactor is a bubble column reactor.5. The method of claim 1 , wherein the first solvent stream is introduced to a top portion of the reactor.6. The method of claim 1 , wherein an operating temperature within the reactor is 30° C. to 120° C.7. The method of claim 1 , wherein an operating pressure within the reactor is 2 claim 1 ,000 kiloPascals to 4 claim 1 ,000 kiloPascals ...

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Номер записи: 62
27-05-2021 дата публикации

APPARATUSES FOR DEHYDROGENATION OF ALKANES

Номер: US20210154635A1
Автор: Bhattacharyya Debasis, DOOSA Hima Bindu, Kapur Gurpreet Singh, MUKTHIYAR Sadhullah, NATH Vineeth Venu, RAMAKUMAR Sankara Sri Venkata, Sau Madhusudan, Thakur Ram Mohan
Принадлежит: INDIAN OIL CORPORATION LIMITED

The present disclosure relates to circulating fluidized bed apparatuses for dehydrogenation of alkanes to alkenes with higher yield and selectivity. The apparatus includes a riser-type reactor, a separator section, a regenerator and a withdrawal well disposed downstream to the regenerator. The apparatus includes a transfer line to receive hot regenerated catalyst free of oxygen from the withdrawal well, and to pre-treat the catalyst with a reducing gas to regulate-oxidation state of metals on the catalyst before reintroducing the catalyst to the riser-type reactor. The transfer line is formed in an elongated U-shaped pipe such that the oxidation state of the metals on the catalyst is regulated by the time the pre-treated catalyst reaches the bottom of the riser-type reactor. 1. A circulating fluidized bed apparatus for dehydrogenation of alkanes comprising a riser-type reactor , a separator coupled to the riser-type reactor , a regenerator coupled to the separator and a withdrawal well disposed downstream to the regenerator , and a transfer line connecting the withdrawal well with the riser-type reactor , the transfer line adapted to:receive hot regenerated catalyst free of oxygen from the withdrawal well; andpre-treat the catalyst with a reducing gas to regulate the oxidation state of metals on the catalyst before reintroducing the catalyst to the bottom of the riser-type reactor, wherein the transfer line is formed in an elongated U-shaped pipe such that the oxidation state of the metals on the catalyst is regulated by the time the catalyst reaches the bottom of the riser-type reactor.2. The circulating fluidized bed apparatus as claimed in claim 1 , wherein the riser-type reactor is adapted to accommodate a pre-heated alkane feed stream and a catalyst for dehydrogenation reaction.3. The circulating fluidized bed apparatus as claimed in claim 1 , wherein the separator comprising:a riser termination device for disengaging the catalyst and hydrocarbons;a set of ...

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Номер записи: 63
10-05-2018 дата публикации

METHOD FOR PRODUCING A HORIZONTAL FLOW ADSORBER AND DIVIDING WALL MODULE FOR USE IN SAID METHOD

Номер: US20180126319A1
Автор: BADER Wolfgang, FERSTL Johann, FIRLBECK Michael, Grahl Matthias, HENTSCHEL Harald, Keil Philipp, Schneider Helko
Принадлежит:

The method serves for producing a horizontal through flow adsorber with two adsorbents which contains two immediately adjacent packings in a horizontal or vertical container. Between the two packings there is a vertical interface. In a step (a) a vertical dividing wall is positioned on the bottom of the adsorption bed and then on each side of the dividing wall one of the two adsorbents is charged up to a first height that does not exceed the upper edge of the separating ring. In the following step (b) the vertical dividing wall is displaced upwardly until the lower edge thereof is still placed in the existing packing. Then, on each side of the dividing wall one of the two adsorbents is charged up to a second height that does not exceed the upper edge of the displaced dividing wall. Finally, step (b) is repeated until a predetermined filling height is achieved. According to the invention, the vertical dividing wall is composed of at least three dividing wall modules () that extend only over a part of the length or of the periphery of the vertical dividing wall and are movable in a vertical direction independently of one another. 1. The method for producing a horizontal through flow adsorber with two adsorbents which contains two immediately adjacent packings in a horizontal or vertical container , wherein there is a vertical interface between the two packings , and wherein a first packing contains a first adsorbent and a second packing contains a second adsorbent that differs from the first adsorbent in the chemical composition and/or particle size thereof , wherein , in the method(a) a vertical dividing wall is positioned on the bottom of the adsorption bed and then on each side of the dividing wall one of the two adsorbents is charged up to a first height that does not exceed the upper edge of the dividing wall,(b) the vertical dividing wall is displaced upwardly until the lower edge thereof is still placed in the existing packing, and on each side of the dividing ...

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Номер записи: 64
01-09-2022 дата публикации

FLOW BYPASS DEVICE FOR A VESSEL CONTAINING SOLID PARTICLES

Номер: US20220274079A1
Автор: HORLACHER Steven R.
Принадлежит:

Disclosed is a flow bypass device, a reactor system containing the flow bypass device; a method for operating a fixed bed of solid particles in which gas is re-routed to an interior of the fixed bed, for example, the flow bypass device is used to bypass a portion of the solid particles; and a method for loading solid particles and a flow bypass device into a vessel. The methods and systems can use a single flow bypass device or multiple flow bypass devices that are stacked on top of one another. 1. A flow bypass device comprising:a pipe portion having a first flow channel formed therein and extending from a first end of the pipe portion to a second end of the pipe portion;a distributor portion connected to the second end of the pipe portion, wherein the distributor portion has a second flow channel formed therein that is fluidly connected to the first flow channel of the pipe portion and to an opening formed in a bottom of the distributor portion, wherein a longitudinal axis of the opening is parallel to a longitudinal axis of the pipe portion; anda rupture disk coupled to the first end of the pipe portion,wherein the pipe portion has no perforations.2. The flow bypass device of claim 1 , further comprising:a top assembly containing the rupture disk and connected to the first end of the pipe portion; anda cap coupled to the top assembly, to the pipe portion, or to both the top assembly and the pipe portion,wherein the rupture disk is positioned between the cap and the first end of the pipe portion.3. The flow bypass device of claim 2 , wherein the cap comprises:a cover; andat least two arms, each of the at least two arms being configured to couple the cover to the top assembly, to the pipe portion, or to both the top assembly and the pipe portion.4. The flow bypass device of claim 3 , wherein each of the at least two arms has an end connected to an underside of the cover and an opposite end connected to the top assembly claim 3 , to the pipe portion claim 3 , or to ...

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Номер записи: 65
03-06-2021 дата публикации

MULTI-BED CATALYTIC CONVERTER

Номер: US20210162361A1
Автор: Baratto Francesco, BIASI Pierdomenico, Carrara Davide, Panza Sergio
Принадлежит:

A multi-bed catalytic converter comprising: a plurality of catalytic beds which are traversed in series by a process gas, sequentially from a first catalytic bed to a last catalytic bed of said plurality, and at least one inter-bed heat exchanger () positioned between a first catalytic bed and a second catalytic bed of said plurality, wherein at least the last catalytic bed of said plurality is adiabatic and is made of fine catalyst with a particle size not greater than 2 mm. 115-. (canceled)16. A multi-bed catalytic converter , comprising:a plurality of catalytic beds which are traversed in series by a process gas, sequentially from a first catalytic bed to a last catalytic bed of said plurality of catalytic beds; andat least one inter-bed heat exchanger positioned between the first catalytic bed and a second catalytic bed of said plurality of catalytic beds, and arranged to remove heat from the process gas leaving the first catalytic bed before entering the second catalytic bed;wherein at least the last catalytic bed of said plurality of catalytic beds is adiabatic and is made of a fine catalyst with a particle size not greater than 2 mm;wherein each of the plurality of catalytic beds includes at least one gas distributor and at least one gas collector arrange to provide that the catalytic bed is traversed by the process gas with a radial flow or axial-radial flow.17. The multi-bed catalytic converter of claim 16 , wherein the particle size of said fine catalyst is 0.8 mm to 1.4 mm.18. The multi-bed catalytic converter of claim 17 , wherein the particle size is 0.8 mm to 1.4 mm.19. The multi-bed catalytic converter of claim 16 , wherein said fine catalyst has a particle size of 1.3 mm or about 1.3 mm.20. The multi-bed catalytic converter of claim 16 , wherein only the last catalytic bed of said plurality of catalytic beds is made of fine catalyst claim 16 , the other catalytic bed(s) of the plurality of catalytic beds being made of catalyst with greater particle ...

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Номер записи: 66
19-05-2016 дата публикации

Collector pipe for a radial-bed reactor

Номер: US20160136605A1
Автор: Cecile Plais, Eric Sanchez, Frederic Bazer-Bachi, Mehdi LE MOEL
Принадлежит: IFP Energies Nouvelles IFPEN

This invention relates to a collector pipe ( 8 ) that is permeable to a gaseous fluid and able to retain particles having a dimension that is greater than a minimum dimension, in which the cross-section of said pipe is a convex polygon having at least three sides.

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Номер записи: 67
30-04-2020 дата публикации

Gas Injection Element for a Fluid Catalytic Cracking Unit and Gas Distribution System Equipped with this Injection Element

Номер: US20200129945A1
Автор: Simon Hubert
Принадлежит:

The invention relates to a gas injection element () for a system for distributing as gas inside a chamber of a fluid catalytic cracking unit. This injection element comprises a passage () passing right through it in a longitudinal direction (X), and —a metallic internal element () of which an internal surface () defines part of the through-passage () passing through in a longitudinal direction (X), —a hollow metal sleeve () accepting one end () of the internal element () and attached thereto, —a hollow metal support () having an internal surface () defining the remainder of the through-passage passing through in the longitudinal direction (X), the said sleeve also being attached to one end of the support (). 114.-. (canceled)15. A gas injection element for a system for distributing gas inside a chamber of a fluid catalytic cracking unit , said injection element comprising a passage passing through said element from one end to the other and extending in a longitudinal direction (X) , an internal metal element, an internal surface of which defines part of the through-passage in the longitudinal direction (X);', 'a hollow metal sleeve, receiving an end of the internal element and fixed thereto;', 'a hollow metal support having an internal surface defining the rest of the through-passage in the longitudinal direction (X), said sleeve also being fixed to an end of the support., 'characterized in that it comprises16. The gas injection element of claim 15 , wherein the sleeve is in abutment against the end of the support to which it is fixed in said longitudinal direction (X).17. The gas injection element of claim 16 , wherein a predetermined clearance is provided between an end of the proximal internal element of the support and said support in said longitudinal direction (X).18. The gas injection element of claim 15 , further comprising at least one of the following features:the sleeve is shrunk-fit on the internal element;the sleeve is soldered to the internal element; ...

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Номер записи: 68
25-05-2017 дата публикации

METHOD AND SYSTEM FOR IMPROVED REACTANT MIXING AND DISTRIBUTION

Номер: US20170144121A1
Автор: Binkley Michael J., Buttridge Ian G., Kim SooWoong
Принадлежит: GTC Technology US LLC

One aspect of the present invention relates to a mixing system for use in a chemical-process column. The mixing system includes a heavy-reactant mixing surface arranged perpendicular to a flow of reactant through the chemical-process column. The mixing system also includes an aperture formed in the heavy-reactant mixing surface. A pre-distributor is coupled to an underside of the mixing system and fluidly coupled to the aperture. 1. A method of mixing reactants in a chemical-process column , the method comprising:introducing a heavy reactant to a mixing region of the chemical process column;contacting the heavy reactant with a heavy-reactant mixing surface;homogenizing the heavy reactant within a mixing pot; anddistributing the heavy reactant via a pre-distributor.2. The method of claim 1 , comprising directing the heavy reactant toward the mixing pot via a baffle.3. The method of claim 1 , comprising mixing the heavy reactant with a vane disposed at an entrance to the mixing pot.4. The method of claim 1 , comprising mixing the heavy reactant via at least one of a vane claim 1 , a deflector claim 1 , a baffle claim 1 , or a static mixer disposed within the mixing pot.5. The method of claim 1 , comprising:introducing a light reactant to the mixing region of the chemical process column;directing the light reactant through the heavy-reactant mixing surface via a light-reactant duct; andmixing the light reactant via a vectoring member fluidly coupled to the light-reactant duct.6. The method of claim 5 , wherein the vectoring member is arranged proximate to the pre-distributor.7. The method of claim 1 , wherein the distributing comprises directing the heavy reactant through a plurality of channels fluidly coupled to the mixing pot claim 1 , the plurality of channels having a plurality of perforations formed therein.8. The method of claim 1 , wherein the homogenizing comprises inducing turbulent mixing of the heavy reactant within the mixing pot.9. The method of claim 1 , ...

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Номер записи: 69
02-06-2016 дата публикации

Continuous Preparation of Calcined Chemically-Treated Solid Oxides

Номер: US20160151755A1
Автор: BENHAM Elizabeth A., MCDANIEL Max P.
Принадлежит:

The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins. 1. A continuous calcination vessel comprising:(a) a fluidized bed vessel having a slope from horizontal in a range from about 5 degrees to less than about 15 degrees;(b) a particulate material inlet capable of introducing inlet particulate material into the fluidized bed vessel;(c) a fluidizing gas inlet capable of introducing a fluidizing gas into the fluidized bed vessel;(d) a fluidizing gas path capable of directing the fluidizing gas from the fluidizing gas inlet into the fluidized bed vessel to fluidize the inlet particulate material;(e) a heating zone within the fluidized bed vessel; and(f) an outlet capable of removing outlet particulate material from the fluidized bed vessel.2. The continuous calcination vessel of claim 1 , wherein the inlet particulate material comprises a solid oxide claim 1 , a chemically-treated solid oxide claim 1 , or a combination thereof.3. The continuous calcination vessel of claim 1 , wherein the outlet particulate material comprises a calcined chemically-treated solid oxide.4. The continuous calcination vessel of claim 1 , wherein the heating zone comprises at least one baffle claim 1 , and wherein the fluidized bed vessel contains sufficient baffles to cause a substantially plug flow profile through the fluidized bed vessel.5. The continuous calcination vessel of claim 1 , further comprising a filter apparatus adapted to remove a portion of the inlet particulate material and/or the outlet particulate material entrained in the fluidizing gas.6. The continuous calcination vessel of claim 1 , further comprising a ...

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Номер записи: 70
02-06-2016 дата публикации

BUBBLE SIZE MINIMIZING INTERNALS FOR FLUIDIZED BED REACTORS

Номер: US20160152482A1
Автор: Colomb Matthias, Deckbar Rick, Nettles Bryan
Принадлежит:

The present invention relates to internals useful for minimizing bubble size in a bubbling fluidized bed reactor. One use for the invention is in an apparatus and method for producing trichlorosilane in which metallurgical grade silicon is reacted with hydrogen chloride gas and while being fluidized by the hydrogen chloride gas, thereby producing trichlorosilane. 1. A reactor with internals for minimizing bubble size comprising:a reactor with a top, a bottom, and walls between the top and the bottom defining an internal space;a center support in the center of the reactor extending vertically from a bottom part of the reactor to a top part of the reactor;a horizontal top support connected to the center support at the top part of the reactor;a horizontal bottom support connected to the center support at the bottom part of the reactor;a horizontal intermediate support connected to and rotatably adjustable on the center support between the horizontal top support and the horizontal bottom support; andvertically extending internals selected from the group consisting of cables; chains; coils; cords; hinged rods; rods; springs; rods and chains or coils in a linear arrangement connected end to end; and an arrangement of any of the cables, chains, coils, cords, hinged rods, rods, and springs, connected together; extending among the horizontal top support, the horizontal intermediate support and the horizontal bottom support.2. The reactor with internals for minimizing bubble size according to claim 1 , wherein the vertically extending internals are chains.3. The reactor with internals for minimizing bubble size according to claim 1 , wherein the horizontal bottom support is connected to the reactor by a plurality of bolts each extending through an arm of the horizontal bottom support to a bolt support member connected to a reactor wall.4. The reactor with internals for minimizing bubble size according to claim 1 , wherein the horizontal top support is connected to the reactor ...

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Номер записи: 71
11-06-2015 дата публикации

Reactor bed component for securing rigid assemblies

Номер: US20150157999A1
Автор: Robert Frank Tammera
Принадлежит: ExxonMobil Research and Engineering Co

Reactor bed component includes a foundation grate, a rigid structure and a fastener. The foundation grate has support plates spaced apart from each other by a distance and having a height with each support plate disposed at an angle. The rigid structure has first structure plates spaced apart by a multiple of the distance and disposed at the angle, and second structure plates secured to and disposed at an opposing angle. Each second structure plate has a horizontal extent to engage an upper edge of a corresponding support plate, and a number of the first structure plates have a length extending below the horizontal extent in overlapping relation with adjacent support plates to prevent horizontal movement of the rigid structure relative the foundation grate in a first direction. The fastener is disposed to secure the rigid structure to the grate against movement in a second direction opposite the first direction.

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Номер записи: 72
17-06-2021 дата публикации

Biomass Upgrading System

Номер: US20210180787A1
Автор: Anton Larsson, Christer Gustavsson, David Pallarès, Henrik STRÖM, Henrik Thunman, Lars Stigsson, Martin Seemann
Принадлежит: Bioshare AB

Aspects provide for volatilizing a biomass-based fuel stream, removing undesirable components from the resulting volatiles stream, and combusting the resulting stream (e.g., in a kiln). Removal of particles, ash, and/or H2O from the volatiles stream improves its economic value and enhances the substitution of legacy (e.g., fossil) fuels with biomass-based fuels. Aspects may be particularly advantageous for upgrading otherwise low-quality biomass to a fuel specification sufficient for industrial implementation. A volatilization reactor may include a fluidized bed reactor, which may comprise multiple stages and/or a splashgenerator. A splashgenerator may impart directed momentum to a portion of the bed to increase bed transport via directed flow.

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Номер записи: 73
07-06-2018 дата публикации

REACTORS AND REACTOR-INTERNAL DEVICES FOR DEHYDROGENATION OF HYDROCARBONS

Номер: US20180154324A1
Автор: Bunama Ramsey, Ganguli Arijit, Nair Vinod S.
Принадлежит:

A fixed bed reactor for cyclic, catalytic de-hydrogenation of hydrocarbons, such as alkanes and a reactor-internal device for improving distribution of hydrocarbon feed into the fixed catalyst bed of the reactor. The device comprises a vertical deflector plate with multiple horizontal slits and a frustum cone with multiple perforations on the lateral surface, connected to the bottom end of the plate. The reactor includes a main horizontal reaction vessel containing a fixed catalyst bed and a cactus-shaped inlet assembly sub-divided into three inlets at the upper half portion to supply fluid streams, including hydrocarbon feed, to the catalyst bed. The distributor device is positioned inside a main central vertical arm of the inlet assembly form by the convergene of the three inlets. Various embodiments of the distributor device where the slit thicknesses, distance between slits, perforation diameter, distance between perforations are varied, are also provided. 1. A device for distributing one or more fluid streams evenly into a catalyst bed comprising:a vertical deflector plate having a top end, a bottom end and a vertical span, the vertical span comprising a plurality of horizontal slits along the vertical span length; anda frustum cone connected to the bottom end, the frustum cone having an angled, lateral surface comprising a plurality of perforations arranged in rows having a triangular pitch.2. The device of claim 1 , wherein the horizontal slits are parallel to one another.3. The device of claim 1 , wherein the horizontal slits have equal or varying thicknesses of 0.1-0.5 meters.4. The device of claim 1 , wherein the perforations have equal or varying diameters of 0.5-20.0 centimeters.5. The device of claim 1 , wherein the perforations have triangular pitch of equal or varying lengths.6. A fixed bed reactor system claim 1 , comprising:a horizontal vessel comprising an elongated, fixed catalyst bed positioned inside the horizontal vessel laterally along the ...

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Номер записи: 74
07-06-2018 дата публикации

EQUALIZING VAPOR VELOCITY FOR REACTOR INLET

Номер: US20180154326A1
Автор: Palmer Brad P.
Принадлежит: Phillips 66 Company

The invention relates to distributing reactants more evenly across the interior space of a reactor vessel utilizing a distributor at the inlet end that initially directs the flow of reactants through a flange plate and a series of ring plates. The ring plates are physical spaced such that vapor along the wall of the inlet is mildly obstructed by the flange plate and the ring plates cause the vapor to alter course temper down any diverse velocities that may create hot spots within the catalyst bed. 1. A process for damping down higher velocity vapor flows that are concentrated asymmetrically across a generally cylindrical inlet to a reactor vessel caused by one or more bends within a conduit conveying vapor to the generally cylindrical inlet of the reaction vessel , wherein the generally cylindrical inlet comprises a peripheral wall with a length from the conduit to the reactor vessel , the process comprising:a) providing a first obstruction generally transverse within the generally cylindrical inlet of the reactor vessel at a first position along the length of the generally cylindrical inlet and near the peripheral wall of the generally cylindrical inlet and having a generally circular opening wherein the size of the first obstruction and the size of the circular opening create a pressure drop of no more than 0.25 pounds for the vapor passing through the generally cylindrical inlet;b) providing a top, ring-like obstruction spaced inwardly from the peripheral wall of the generally cylindrical inlet at a second position along the length of the generally cylindrical inlet wherein the size and shape of the top, ring-like obstruction create a pressure drop of no more than 0.25 pounds for the vapor passing through the generally cylindrical inlet;c) providing a middle, ring-like obstruction spaced further inwardly from the peripheral wall of the generally cylindrical inlet as compared to the top, ring-like obstruction at a third position along the length of the generally ...

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Номер записи: 75
08-06-2017 дата публикации

INLET DISTRIBUTOR AND FIXED VALVE TRAY FOR SPHERICAL REACTOR

Номер: US20170157586A1
Автор: Palmer Brad P., Sitton Kevin Damon
Принадлежит: Phillips 66 Company

The invention relates to distributing reactants more evenly across the interior space of a reactor vessel utilizing a distributor at the inlet end that initially directs the flow of reactants through a series of circumferential nozzles. The nozzles are physical spaced such that the first nozzle provides the reactants into the vessel to spread radially and broadly outwardly into the vessel and each successive circumferential nozzle to deliver reactants in a less broadly distribution or dispersion where the interior space is filled with reactants without broadly diverse velocities that may create hot spots within the catalyst bed. The invention further includes a catalyst support tray having through holes that are sized and spaced to limit higher velocity regions within the catalyst bed and cause a more even distribution of the flow and thereby reduce hot spots within the catalyst bed. 1. A reactor vessel comprising:a) a shell having an open interior space within the shell, an inlet into the interior space for the admission of reactants and an outlet at the opposite end thereof to allow the exit of products;b) a distributor comprising a generally cylindrical body having an inlet end and an outlet end; a first deflector ring with an integrally attached first neck attached to but spaced from the outlet end of the generally cylindrical body by stanchions such that a circumferential nozzle is defined between the deflector ring and the outlet end of the generally cylindrical body and the neck extends from the first deflector ring away from the generally cylindrical body; at least one additional deflector ring with an integrally attached additional neck attached to but spaced from the first neck by stanchions such that a an additional circumferential nozzle is defined between the additional deflector ring and the first neck; and a deflector plate attached to said additional deflector ring by stanchions, but spaced from said additional neck to define a last circumferential ...

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Номер записи: 76
08-06-2017 дата публикации

Combination equalizer, inlet distributor and fixed valve tray for spherical reactor

Номер: US20170157587A1
Автор: Brad P. Palmer
Принадлежит: Phillips 66 Co

The invention relates to equalizing and distributing vapor more evenly across the interior space of a reactor vessel utilizing an equalizing section and distributor section at the inlet end and a fixed valve tray at the bottom of the reactor to equalize and distribute the flow.

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Номер записи: 77
08-06-2017 дата публикации

COMBINATION EQUALIZER AND INLET DISTRIBUTOR FOR SPHERICAL REACTOR

Номер: US20170157588A1
Автор: Palmer Brad P.
Принадлежит: Phillips 66 Company

The invention relates to equalizing and distributing reactants more evenly across the interior space of a reactor vessel utilizing a combination equalizer and distributor at the inlet end that initially impedes with uneven flow rates of vapor and then directs the flow of vapor through a series of circumferential nozzles. The nozzles are physical spaced such that the first nozzle provides the reactants into the vessel to spread radially and broadly outwardly into the vessel and each successive circumferential nozzle to deliver reactants in a less broadly distribution or dispersion where the interior space is filled with reactants without broadly diverse velocities that may create hot spots within the catalyst bed. 1. A reactor inlet system arranged to be installed into a reactor vessel and receive vapor from a tubular delivery conduit and distribute the vapor into the reactor vessel for generally even flow through the reactor vessel wherein the reactor inlet system comprises:a) a generally hollow cylindrical body having an inlet end at a top thereof and an outlet end spaced from the inlet end at a bottom thereof and also including a generally center axis and in interior wall, an equalizer section positioned generally within the generally cylindrical body at the inlet end, and a distributor section positioned near the outlet end of the generally cylindrical body; i) a flange equalizer plate positioned generally at the inlet end of the generally cylindrical body and arranged to minimally obstruct vapor entering the reactor inlet at a periphery of the tubular delivery conduit;', 'ii) a top equalizer plate positioned within the generally hollow cylindrical body and spaced downwardly from the flange equalizer plate and spaced inwardly from the generally hollow cylindrical body and arranged to minimally obstruct vapor moving generally downwardly through the generally hollow cylindrical body nearer to the interior wall than to the generally center axis;', 'iii) a middle ...

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Номер записи: 78
14-05-2020 дата публикации

RADIAL-FLOW REACTOR APPARATUS

Номер: US20200147572A1
Автор: Early Simon Robert, Graham Simon, Wise Paul
Принадлежит:

A device suitable for use as a distributor or collector in a radial-flow reaction vessel is described, comprising an open end and a plurality of rigid columnar portions, each columnar portion comprising a cylindrical outer screen formed from parallel spaced wires and a perforate inner screen fixed to the outer screen, said inner screen formed from a plurality of adjacent perforate support members that support the spaced wires, wherein the rigid columnar portions further comprise means for controlling a flow of a gaseous process fluid to or from the device. The device may be used in radial-flow vessels used in chemical processes such as methanol synthesis. 1. A device suitable for use as a distributor or collector in a radial-flow reaction vessel , comprising an open end and a plurality of rigid columnar portions , each columnar portion comprising a cylindrical outer screen formed from parallel spaced wires and a perforate inner screen fixed to the outer screen , said inner screen formed from a plurality of adjacent perforate support members that support the spaced wires , wherein the rigid columnar portions further comprise a means for controlling a flow of a gaseous process fluid to or from the device , wherein the means for controlling the flow of a gaseous process fluid to or from the device comprises the use of overlapping spigot joints to join portions of the device nearest the open end , and internal flange joints to join portions furthest from the open end.2. The device of wherein the means for controlling the flow of the gaseous process fluid to or from the device further comprises is providing a greater number and/or a larger size and/or a smaller spacing of the perforations in the inner screen in a portion adjacent the open end.3. (canceled)4. The device of wherein the wires have cross-sections that are circular claim 1 , square claim 1 , rectangular claim 1 , triangular or polygonal.5. The device of wherein the triangular or wedge-shaped bars or wires are ...

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Номер записи: 79
14-05-2020 дата публикации

NOVEL DEVICE FOR DISTRIBUTING A POLYPHASE MIXTURE IN A CHAMBER CONTAINING A FLUIDIZED MEDIUM

Номер: US20200147575A1
Автор: AMBLARD Benjamin, Gauthier Thierry, TEBIANIAN Sina
Принадлежит: IFP ENERGIES NOUVELLES

The present invention describes a device for distributing a light phase in a heavy phase inside a reaction chamber () containing said heavy phase in the fluidized state, comprising a pipe () for conveying the light phase, said pipe () being cylindrical, and being open in its upper part via first and second rectangular openings () pierced in the lateral wall of said pipe (), the second openings () being extended by branches () perpendicular to the axis of symmetry of the reaction chamber (), and the pipe () being surmounted at its upper part by a convex head (). 151515781865191069) Device for distributing a light phase in a heavy phase inside a reaction chamber () containing said heavy phase in the fluidized state , the device comprising a pipe () for conveying the light phase entering the reaction chamber () in its lower part , said pipe () being cylindrical and substantially centred along the axis of symmetry of the chamber () , and being open in its upper part via first and second rectangular openings ( , ) pierced in the lateral wall of said pipe () , the second openings () being extended by branches () perpendicular to the axis of symmetry of the reaction chamber () , and the pipe () being surmounted at its upper part by a convex head () which has notches () uniformly distributed all along its lower edge , and allows the passage of the branches () which protrude beyond the circumference of said head ().2781) Device for distributing a light phase according to claim 1 , in which the first openings () have a width B and a height J claim 1 , and the second openings () have a width A and a height K claim 1 , which are determined in such a way that the velocity of the light phase as it passes through the first and second openings is comprised between 0.3V and 20V claim 1 , and preferably comprised between 0.5V and 10V claim 1 , V denoting the velocity of said light phase in the pipe ().365568) Device for distributing a light phase according to claim 1 , in which the ...

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Номер записи: 80
18-06-2015 дата публикации

FLUID-SPARGED HELICAL CHANNEL REACTOR AND ASSOCIATED METHODS

Номер: US20150165408A1
Автор: Choros Edward, DRINNAN Nicholas B., Messiter Steven, Miller Jan D., Rajamani Raj, Zmierczak Wlodzimierz W.
Принадлежит:

A fluid-sparged helical channel reactor can include a constrained flow unit located within a reactor body. The unit has an inner wall and an outer wall which produces a helical constrained flow along a substantially enclosed helical flow path around an axial interior volume. At least part of the outer wall includes a sparging portion to allow fluid reactant to be sparged into the helical constrained flow. A liquid inlet fluidly connected to the reactor body and configured to allow addition of a liquid into the enclosed helical flow path. A sparging fluid inlet is fluidly connected to the reactor body which supplies a sparging fluid to the sparging portion of the constrained-flow unit. A liquid outlet fluidly is connected to the reactor body to allow removal of liquid from the constrained-flow unit. A gas outlet is fluidly associated with the enclosed helical flow path to allow removal of gases from the enclosed helical flow path. 1. A fluid-sparged helical channel reactor , comprising:a) a constrained-flow unit located within a reactor body, said unit having an inner wall and an outer wall configured to produce a helical constrained flow along a substantially enclosed helical flow path around an axial interior volume, wherein at least part of the outer wall includes a sparging portion to allow fluid reactant to be sparged into the helical constrained flow;b) a liquid inlet fluidly connected to the reactor body and configured to allow addition of a liquid into the enclosed helical flow path;c) a sparging fluid inlet fluidly connected to the reactor body for supply of a sparging fluid to the sparging portion of the constrained-flow unit;d) a liquid outlet fluidly connected to the reactor body to allow removal of liquid from the constrained-flow unit; ande) a gas outlet fluidly associated with the enclosed helical flow path to allow removal of gases from the enclosed helical flow path.2. The fluid-sparged helical channel reactor of claim 1 , further comprising a plenum ...

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Номер записи: 81
14-05-2020 дата публикации

USE OF TREATING ELEMENTS TO FACILITATE FLOW IN VESSELS

Номер: US20200149564A1
Автор: GLOVER JOHN N., HAM PETER GREGORY, SCHNEIDER AUSTIN
Принадлежит: CRYSTAPHASE PRODUCTS, INC.

A method for facilitating the distribution of the flow of one or more streams within a bed vessel is provided. Disposed within the bed vessel are internal materials and structures including multiple operating zones. One type of operating zone can be a processing zone composed of one or more beds of solid processing material. Another type of operating zone can be a treating zone. Treating zones can facilitate the distribution of the one or more streams fed to processing zones. The distribution can facilitate contact between the feed streams and the processing materials contained in the processing zones. 1. A method of loading a process vessel comprising:loading a downstream zone of processing materials into the process vessel;loading a zone of treating elements into the process vessel above the downstream zone of processing materials; andloading an upstream zone of processing materials into the process vessel above the zone of treating elements,wherein the upstream zone of processing materials is loaded such that it is adjacent to the zone of treating elements,and wherein there is no physical device disposed between the upstream zone of processing materials and the zone of treating elements in the process vessel,and wherein there is no physical device disposed between the downstream zone of processing materials and the zone of treating elements in the process vessel,and wherein at least some of the processing elements from the upstream zone are capable of migrating into, and commingling with, treating elements in a section of the zone of treating elements adjacent the upstream zone to form a combination zone having processing and treating functionality.2. The method of claim 1 , further comprising loading a pre-mixed zone of treating elements and processing elements into the process vessel prior to loading the upstream zone of processing materials.3. The method of claim 1 , further comprising loading claim 1 , upstream of the upstream zone of processing materials ...

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Номер записи: 82
16-06-2016 дата публикации

Inter-bed mixing in fixed bed reactors

Номер: US20160167007A9
Автор: Anastasios Ioannis Skoulidas, Antonio O. Ramos, Benjamin Santiago Umansky, Hans Georg Korsten, Keith Wilson
Принадлежит: ExxonMobil Research and Engineering Co

A stator-type mixing device is used as a mixing device between fixed catalyst beds in a reactor. The mixing device includes a plurality of blades or surfaces arranged around a central hub. The blades are arranged at an angle relative to vertical so that a fluid cannot pass vertically through the mixing device without contacting at least one blade or surface. The blades or surfaces allow the stator-type mixing device to span the full cross-sectional surface area of the reactor, so that concentration of liquids in a localized portion of the reactor cross-sectional area is reduced or minimized. For reactors where at least part of the process fluid is a liquid under reaction conditions, a distributor tray can be included below the stator-type mixing device.

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Номер записи: 83
30-05-2019 дата публикации

SCALLOP SUPPORT DISTRIBUTOR FOR RADIAL FLOW REACTOR

Номер: US20190160444A1
Автор: Bennett Heather, Eberhardt Gene, HILLENBURG Russell
Принадлежит:

A supported scallop and a support distributor therefor for use in a radial flow reactor. The support distributor includes an elongated sheet having a plurality of perforations extending through a thickness thereof, and at least one edge along a length thereof so as to form a member having at least one support point which engages an inner surface of the scallop. 1. A support distributor for a scallop for use in a radial flow reactor , comprising: a plurality of perforations extending through a thickness thereof, the plurality of perforations being configured to allow gases, vapors, or liquids to flow through the thickness of the elongated sheet, and', 'at least one edge along a length thereof so as to form a member having at least one support point which engages an inner surface of the scallop., 'an elongated sheet having2. The support distributor of claim 1 , wherein the elongated sheet has a plurality of edges along the length thereof so that the member has a plurality support points which engage the inner surface of the scallop.3. The support distributor of claim 1 , wherein the support distributor has one of a V-shaped cross-section claim 1 , a W-shaped cross-section claim 1 , a triangular cross-sectional shape claim 1 , a square cross-sectional shape claim 1 , or a rectangular cross-sectional shape.4. The support distributor of claim 1 , wherein each of the plurality of perforations has a generally circular claim 1 , square claim 1 , or rectangular shape.5. The support distributor of claim 1 , wherein the elongated sheet is formed of a metal alloy.6. The support distributor of claim 5 , wherein the metal alloy is stainless steel.7. A support distributor for a scallop for use in a radial flow reactor claim 5 , comprising: a plurality of perforations extending through a thickness thereof, the plurality of perforations being configured to allow gases, vapors, or liquids to flow through the thickness, and', 'at least one edge along a length thereof so as to form a ...

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Номер записи: 84
21-05-2020 дата публикации

HYDROPROCESSING SYSTEM WITH IMPROVED COOLING LIQUID ATOMIZATION

Номер: US20200156094A1
Автор: Patel Bandish
Принадлежит:

A hydroprocessing system having a processing vessel that discharges a high temperature effluent that must be cooled prior to collection in a reflux drum. One or more gas assisted spray nozzle are provided that utilize light atomizing gas having a density of 8-15 times less than air, such as hydrogen, which preferably is the processing or recycle gas of the system. The spray nozzles are designed for the efficient atomization and direction of cooling water into a micron sized droplet distribution utilizing the light atomizing gas for affecting higher mass and heat transfer from the effluent. The spray nozzles each include a unique atomizing gas and cooling liquid passageway systems, a downstream impingement post, and a plurality of discharge orifices which sequentially breakdown the liquid into micron sized droplets as low as 500 microns and less. 1. A hydroprocessing system comprising:a processing vessel having a hydrocarbon inlet coupled to a hydrocarbon supply for directing hydrocarbon into the processing vessel,said processing vessel having a process gas inlet coupled to a light process gas supply for directing light process gas into said processing vessel;said processing vessel having a vapor outlet for directing high temperature vapor from the processing vessel to a vapor discharge line for direction to an effluent cooler;a spraying system for directing atomized cooling water into the high temperature vapor directed through said vapor discharge line;said spraying system including a spray nozzle having an atomizing gas inlet coupled to a light gas supply and a water inlet coupled to a cooling water supply;said nozzle body having an internal protrusion extending downstream within an enlarged diameter expansion chamber of said nozzle body, said protrusion having a central gas passage communicating with said atomizing gas inlet and spray nozzle light gas supply;said protrusion having a plurality of circumferentially spaced cross gas passages communicating with said ...

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Номер записи: 85
21-05-2020 дата публикации

Hydrocarbon Conversion

Номер: US20200157022A1
Автор: Barrai Federico, Bhandari Dhaval A., CHUN ChangMin
Принадлежит:

The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area ≤55%. The refractory can include non-oxide ceramic. 120.-. (canceled)21. A reverse-flow reactor , comprising: (i) the second aperture is separated from the first aperture by a first flow-path through the channel,', {'sub': n+1', 'n', 'i', 'j', 'k', 'm, '(ii) the refractory includes one or more of a first ceramic comprising at least one compound represented by the formula MAX, a second ceramic comprising at least one compound represented by the formula NB, and a third ceramic comprising at least one compound represented by the formula PQ, and'}, '(iii) M is at least one element selected from Groups 3-6 of the Periodic Table, A is at least one element selected from Groups 13-15 of the Periodic Table; X is carbon and/or nitrogen; N is at least one element selected from Groups 4 and 5 of the Periodic Table; B is boron; P is at least one element selected from Groups 4-10 of the Periodic Table; Q is silicon and/or aluminum; n is 1, 2, or 3; i and k are each a positive integer; j is i+1 or i+2; and m is a positive integer that can be greater than k, less than k, or equal to k;, '(a) a first channeled member having open frontal area (OFA)≤55%, the first channeled member comprising at least one refractory and having opposed first and second apertures and at least one internal channel, wherein'}(b) a second channeled member comprising at least one refractory and having opposed first and second apertures and at least one internal channel, the first and second apertures being separated by a second flow-path through the channel,(c) a reactor vessel having opposed first and second openings and an internal volume, wherein (i ...

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Номер записи: 86
01-07-2021 дата публикации

MIXING AND DISTRIBUTION DEVICE WITH LONGITUDINAL OPENING

Номер: US20210197159A1
Автор: AUGIER Frederic, BEARD Philippe, PLAIS Cecile
Принадлежит: IFP ENERGIES NOUVELLES

Fluid mixing and distribution device for a downflow catalytic reactor, the said device comprising a mixing zone comprising at least one fluid-mixing space of length L1′ and a fluid-exchange space of length L2′, situated underneath and superposed with said mixing space, it being understood that the length L2′ of the said exchange space is strictly greater than the length L1′ of the said mixing space so as to create a roof at the level of the said exchange space, the said roof comprising at least one longitudinal opening suited to the passage of the following its from the said exchange space to the said distribution zone. 1. A device for mixing and distributing fluids for a downflow catalytic reactor , said device comprising:{'b': '5', 'at least one collecting zone (A) comprising at least one collecting means ();'}{'b': 7', '5', '8', '7, 'at least one substantially vertical collecting pipe () that is able to receive a reaction fluid collected by said collecting means () and at least one injection means () opening into said collecting pipe () in order to inject a quench fluid;'}{'b': 7', '15', '1', '15', '7', '16', '2', '15, 'at least one mixing zone (B), situated downstream of said collecting pipe () in the direction of flow of the fluids, said mixing zone (B) comprising at least one fluid mixing chamber () of length L′, said mixing zone () comprising a first end in communication with said collecting pipe () and a second end in communication with a fluid exchange chamber () of length L′, situated underneath and superposed with said mixing chamber ();'}{'b': 12', '13, 'at least one distribution zone (C) situated at the same level as the mixing zone (B), downstream of said mixing zone (B) in the direction of flow of the fluids, said distribution zone (C) comprising a distribution plate () supporting a plurality of chimneys ();'}{'b': 2', '16', '1', '15', '30', '16', '30', '31', '16, 'wherein the length L′ of said exchange chamber () is greater than the length L′ of said ...

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Номер записи: 87
01-07-2021 дата публикации

CONTINUOUS ACOUSTIC CHEMICAL MICROREACTOR

Номер: US20210197168A1
Автор: Farrar Lawrence C., Martineau Zachary Ruprecht, Sperry Grayson
Принадлежит: Resodyn Corporation

A continuous acoustic chemical microreactor system is disclosed. The system includes a continuous process vessel (CPV) and an acoustic agitator coupled to the CPV and configured to agitate the CPV along an oscillation axis. The CPV includes a reactant inlet configured to receive one or more reactants into the CPV, an elongated tube coupled at a first end to the reactant inlet and configured to receive the reactants from the reactant inlet, and a product outlet coupled to a second end of the elongated tube and configured to discharge a product of a chemical reaction among the reactants from the CPV. The acoustic agitator is configured to agitate the CPV along the oscillation axis such that the inner surface of the elongated tube accelerates the one or more reactants in alternating upward and downward directions along the oscillation axis. 1. A method of continuously processing a combination of materials in a chemical microreactor , the method comprising:introducing, via a reactant inlet, one or more reactants into an elongated tube coupled at a first end to the reactant inlet and configured to receive the reactants from the reactant inlet, wherein the elongated tube has an inner surface having a hydraulic diameter of less than 2.5 cm;agitating, using an acoustic agitator coupled to the continuous process vessel, the continuous process vessel along the oscillation axis at a frequency greater than 10 Hz and less than 100 Hz such that the inner surface of the elongated tube accelerates the one or more reactants in alternating upward and downward directions along the oscillation axis; anddischarging, from a product outlet coupled to a second end of the elongated tube, a product of a chemical reaction among the reactants from the continuous process vessel.2. The method of claim 1 , comprising:introducing, via a coolant inlet, a cooling fluid into an interstitial region within the continuous process vessel and surrounding the elongated tube, the interstitial region ...

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Номер записи: 88
15-07-2021 дата публикации

A Multi-Stage Fluidized Catalytic Reaction Process of Petroleum Hydrocarbons and an Apparatus Thereof

Номер: US20210214623A1
Автор: Shi Baozhen, SHI Lin
Принадлежит:

The present invention relates to the technical field of petroleum hydrocarbon catalytic conversion, referring to a multi-stage fluidized catalytic reaction process of petroleum hydrocarbon. In the present reaction process, multi-stage reaction takes place in the same reactor, including first order reaction and the second order reaction of FCC feedstock oil, cracking reaction process of light hydrocarbons and/or cycle oil. In the present process, catalyst replacement and two-stage relayed reaction takes place between the first and second order reaction of feedstock oil. Two-stage reaction of light hydrocarbons and/or cycle oil takes place too. These reactions take place in different region in the same one reactor. The first order reaction of light hydrocarbons and/or cycle oil takes place in independent region. In the present invention, catalytic cracking conversion of catalytic feedstock oil, light hydrocarbon and cycle oil takes place in respective reaction region and reaction condition. Multi-stage and stepped selectivity control of catalyst and reaction temperature is realized. Multi-stage reaction and stepped arrangement of temperature is realized in the same reactor. It could improve the yield and selectivity of olefin, and decrease the yield of by-products such as coke obviously. 1. A multi-stage fluidized catalytic reaction process of petroleum hydrocarbon , characterized in that:in the present reaction process, multi-stage reaction takes place in the same reactor, including the first order reaction, the second order reaction of feedstock oil and cracking reaction process of light hydrocarbons and/or cycle oil; in the present process, catalyst replacement and two-stage relayed reaction takes place between the first and second order reaction of catalytic cracking feedstock oil, two-stage reaction of light hydrocarbons and/or cycle oil takes place too; these reactions take place in different region in the same one reactor; the first order reaction of light ...

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Номер записи: 89
11-06-2020 дата публикации

DEVICE AND METHOD FOR PREPARING PARA-XYLENE AND CO-PRODUCING LIGHT OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER AND TOLUENE

Номер: US20200179891A1
Автор: He Changqing, JIA Jinming, LI Chenggong, Li Hua, Liu Zhongmin, TANG Hailong, Wang Xiangao, Ye Mao, Zhang Cheng, ZHANG Jinling, Zhang Tao, ZHAO Yinfeng
Принадлежит:

Disclosed are a fast fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, with the reactor, device and method being capable of solving or improving the problem of competition between an alkylation reaction and an MTO reaction during the process of producing the para-xylene and co-producing light olefins from toluene and methanol, thus achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, the competition between the alkylation reaction and the MTO reaction is coordinated and optimized to achieve a synergistic effect, thereby increasing the conversion rate of toluene, the yield of para-xylene and the selectivity of the light olefins. The fast fluidized bed reactor comprises a first reactor feed distributor and a plurality of second reactor feed distributors, the first reactor feed distributor and the plurality of second reactor feed distributors are sequentially arranged along the gas flow direction in a reaction zone of the fast fluidized bed reactor. 1. A fast fluidized bed reactor for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene , wherein the fast fluidized bed reactor comprises a first reactor feed distributor and a plurality of second reactor feed distributors , the first reactor feed distributor and the plurality of second reactor feed distributors are sequentially arranged along the gas flow direction in the fast fluidized bed reactor.2. The fast fluidized bed reactor of claim 1 , wherein the fast fluidized bed reactor comprises a first reactor gas-solid separator and a second reactor gas-solid separator claim 1 , the first reactor gas-solid separator is placed in a dilute phase zone or outside a reactor shell claim 1 , and the second reactor gas-solid separator is placed in the dilute phase zone or outside the reactor shell;the first ...

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Номер записи: 90
23-07-2015 дата публикации

APPARATUS TO REDUCE CATALYST FLUIDIZATION IN REGENERATION UNITS

Номер: US20150202583A1
Автор: Chen Pengfei, Lok Ka L., Sabitov Alexander V., Wier Mary Jo
Принадлежит:

The invention reduces the potential for catalyst fluidization in a reduction vessel of a continuous catalyst regeneration system. The gas exit area from the catalyst reduction zone is increased by ventilating the cylindrical baffle of the upper reduction zone. This provides an increased exit cross-sectional area for the upper reduction gas to escape and reduce the overall exit velocity of the combined upper and lower reduction gases and reduces the potential for catalyst fluidization. 1. A reduction vessel having a reduction zone comprising an upper zone and a lower zone wherein said upper zone comprises an annular shaped baffle and an annular shaped opening and wherein a portion of said annular shaped baffle adjacent to said opening is a ventilated section.2. The vessel of wherein said portion of said baffle comprises a screen or ventilation device.3. The vessel of wherein said screen is a profile wire screen.4. The vessel of wherein said ventilated section is annular in configuration and wherein said ventilated section is from 1 to 24 inches (25.4 to 611 mm) in height measured in a vertical direction along said reduction vessel.5. The vessel of wherein said lower zone comprises a lower annular baffle.6. An apparatus to increase a flow of gas exiting a reaction vessel comprising a cylindrical shaped reactor wherein within said cylindrical shaped reactor is positioned at least one annular baffle wherein a portion of a surface of said annular baffle comprises a screen.7. The apparatus of wherein about 70 to 100 percent of said upper reduction gas flow exits the said ventilation device inside the reduction vessel.8. The apparatus of wherein said at least one annular baffle is an upper annular baffle.9. The apparatus of wherein said at least one annular baffle further comprises a lower annular baffle.10. The apparatus of wherein said screen has a length that is 10-40% of a length of said upper annular baffle.11. The apparatus of wherein below said screen is a catalyst ...

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Номер записи: 91
27-06-2019 дата публикации

PROCESS AND APPARATUS FOR FLUIDIZING A CATALYST BED

Номер: US20190193040A1
Автор: Brandner Kevin J.
Принадлежит:

A process and apparatus for fluidizing a catalyst cooler with fluidization gas fed to the cooler below the catalyst bed is disclosed. Fluidization headers extend through an outlet manifold and deliver fluidization gas through distributors protruding through an outlet tube sheet defining said outlet manifold. The outlet manifold collects heated water vapor from the catalyst cooler and discharges it from the catalyst cooler. 1. A process for fluidizing a bed of catalyst in a catalyst cooler comprising internals and said bed of catalyst:passing water from a water manifold to an inner tube;heating water in said inner tube by indirect heat exchange with said bed of catalyst to vaporize at least some of the water;passing vaporized water to an outer tube nested around said inner tube;collecting said vaporized water in an outlet manifold;feeding fluidizing gas to said catalyst cooler through an inlet located below said bed of catalyst and distributing said fluidizing gas to said bed of catalyst to fluidize said bed of catalyst.2. The process of further comprising a plurality of inner tubes and a plurality of outer tubes are respectively nested around a respective inner tube and water is passed from the water manifold to said plurality of inner tubes and vaporized water is passed from said outer tubes to said outlet manifold.3. The process of further comprising feeding said fluidizing gas to said catalyst cooler through a header that supplies fluidization distributors.4. The process of further comprising passing fluidizing gas from said header to said bed of catalyst between said outer tubes.5. The process of further comprising feeding said fluidizing gas through said header in said outlet manifold.6. The process of further comprising heating said fluidizing gas by indirect heat exchange with said vaporized water in said outlet manifold.7. The process of further feeding water to said water manifold and vaporized water exits from said outlet manifold.8. The process of further ...

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Номер записи: 92
27-06-2019 дата публикации

Process and apparatus for fluidizing a catalyst bed

Номер: US20190193041A1
Автор: Dharmesh C. Panchal
Принадлежит: UOP LLC

A process and apparatus is disclosed for gradually starting fluidization in a bed of particulate from the top down so as to avoid thrusting the entire mass of particulates upwardly in the bed at the same time which may damage internals in the bed. The particulate bed may comprise a catalyst cooler for an FCC unit containing internals such as cooling, fluidization and support equipment.

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Номер записи: 93
06-08-2015 дата публикации

TAPER FLUIDIZED BED REACTOR AND PROCESS FOR ITS USE

Номер: US20150217252A1
Автор: Bucci John V., Cocco Raymond Anthony, Dehtiar Max E., Harder Patrick J., Karri S.B. Reddy, Knowlton Ted M., Molnar Michael J.
Принадлежит:

A fluidized bed reactor includes a gas distributor, a tapered section above the gas distributor, and an expanded head above the tapered section. The gas distributor defines a plurality of inlets surrounding a product withdrawal tube, which extends away from the fluidized bed reactor. The fluidized bed reactor is useful in a process for fluidizing relatively large particles, such as Geldart Group B particles and/or Geldart Group D particles, where said particles are in a bubbling fluidized bed residing, in whole or in part, in the tapered section. The fluidized bed reactor and process may be used for manufacturing polycrystalline silicon. 1. A process for preparing polycrystalline silicon in a fluidized bed reactor , where the process comprises:feeding gases comprising hydrogen and a silicon bearing source gas comprising a silicon monomer into a bubbling fluidized bed containing silicon particles, where at least a portion of the bubbling fluidized bed resides in a tapered section of the fluidized bed reactor, where the tapered section expands upward and outward at a cone angle from vertical;feeding silicon particles into the fluidized bed reactor above the tapered section;heating the fluidized bed reactor, thereby causing thermal decomposition of the silicon monomer to produce polycrystalline silicon on surfaces of the silicon particles, thereby producing larger diameter particles; andremoving the larger diameter particles from the fluidized bed reactor.2. The process of claim 1 , where the cone angle ranges from 2.5° to 10.0°.3. The process of claim 1 , where the silicon bearing source gas comprises HSiCland optionally SiCl claim 1 , or where the silicon bearing source gas comprises HSiBrand optionally SiBr claim 1 , or where the silicon bearing source gas comprises SiH.4. (canceled)5. (canceled)6. The process of claim 1 , where a product withdrawal tube is mounted to the gas distributor, where all, or a portion, of the hydrogen is fed into the fluidized bed reactor ...

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Номер записи: 94
28-07-2016 дата публикации

HYDROGENATION REACTOR AND PROCESS

Номер: US20160214913A1
Автор: Baksh Faisal, Nawaz Zeeshan
Принадлежит:

A reactor and process for removing unsaturated alkynes and diolefinic impurities from olefins and oxygenates is described. 1. A reactor suitable for use in a hydrogenation process , the reactor comprising:a. a catalyst bed comprising a tube for cooling the catalyst bed;b. a plurality of inlets for conveying a feed material to the catalyst bed; andc. one or more outlets,{'sup': 2', '2, 'wherein the catalyst bed comprises a catalyst having a surface area of from about 15 m/g to about 650 m/g, and wherein the reactor can provide a space velocity of from about 500/h to about 50,000/h for hydrogenation reactions.'}2. The reactor of claim 1 , further comprising one or more distributors for distributing the feed material uniformly or substantially uniformly across the catalyst bed.3. The reactor of claim 1 , wherein the catalyst bed is a fixed bed comprising a selective hydrogenation catalyst.4. The reactor of claim 1 , wherein the catalyst bed is positioned in contact with one or more catalyst bed supports.5. The reactor of claim 1 , being a hydrogenation reactor comprising a plurality of inlets for an olefin feed claim 1 , an oxygenate feed claim 1 , or a combination thereof.6. The reactor of claim 1 , further comprising a drip trap for recovering a condensate and/or a green oil.7. The reactor of claim 1 , further comprising one or more thermowells disposed between an exterior surface of the reactor and the catalyst bed.8. (canceled)9. (canceled)10. (canceled)11. The reactor of claim 1 , wherein the catalyst has a surface area of from about 30 m/g to about 650 m/g.12. The reactor of claim 1 , having a space velocity of at least about 25 claim 1 ,000/h.13. The reactor of claim 1 , having a high space velocity claim 1 , a low pressure drop claim 1 , a uniform distribution of feed material across the catalyst bed claim 1 , or a combination thereof claim 1 , as compared to a conventional hydrogenation and/or dehydrogenation reactor.14. A reactor system comprising a plurality ...

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Номер записи: 95
06-08-2015 дата публикации

REACTOR ASSEMBLY AND METHOD FOR POLYMERIZATION OF OLEFINS

Номер: US20150218295A1
Автор: Al-Haj Ali Mohammad, Kanellopoulos Vasileios
Принадлежит: Borealis AG

Reactor assembly for the production of polymers including a fluidized bed reactor and method for operating the reactor assembly. 114-. (canceled)1516. A method for polymerizing olefins in a fluidized bed reactor () , wherein the fluidized bed is formed by polymer particles in an upwards rising fluidization gas said upwards rising fluidization gas has a superficial velocity in the middle zone () of from 0.05 to 0.8 m/s , said method comprising the steps of:{'b': 34', '9', '1', '1, '(i) withdrawing a fluidization gas stream () via outlet () from said fluidized bed reactor () at a height of more than 90% of the total height of said fluidized bed reactor ();'}{'b': 34', '42', '36, '(ii) separating polymer particles from said fluidization gas stream () to produce an overhead stream () and a solid recycling stream ();'}{'b': 36', '40, '(iii) branching off from said solid recycling stream () a stream to downstream process stages ();'}{'b': '40', '(iv) directing said stream to downstream process stages () to downstream process stages; and'}{'b': 36', '1, 'claim-text': [{'b': 1', '5', '6', '7', '5', '7', '1', '5', '7, 'wherein said fluidized bed reactor () comprises a bottom zone (), a middle zone () and an upper zone (), the equivalent cross-sectional diameter of the bottom zone () being monotonically increasing with respect to the flow direction of the fluidization gas through the fluidized bed reactor and the equivalent cross-sectional diameter of the upper zone () being monotonically decreasing with respect to the flow direction of the fluidization gas through the fluidized bed reactor (); and wherein there is an unobstructed passageway in the direction of flow of the fluidization gas through the fluidized bed reactor from the bottom zone () to the upper zone (); and'}, {'b': 1', '14', '40, 'the reactor further comprises an outlet for the polymer whereby the polymer stream withdrawn from the fluidized bed reactor () via outlet of the polymer () and the solid recycling ...

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Номер записи: 96
05-08-2021 дата публикации

Hydroprocessing Reactor to Lower Pressure Drop and Extend Catalyst Life

Номер: US20210237027A1
Автор: Ackerson Michael D., Byars Michael Steven
Принадлежит:

A reactor for accommodating high contaminant feedstocks includes a reactor vessel having an inlet for introducing a feedstock containing contaminants into an interior of the reactor vessel. A basket is located within the reactor vessel interior and contains a particulate material for removing contaminants from the feedstock to form a purified feedstock that is discharged to a purified feedstock outlet. A catalyst is located within the reactor vessel and in fluid communication with the purified feedstock outlet of the basket for contacting the purified feedstock to form a desired product. 1. A reactor for accommodating high contaminant feedstocks comprising:a reactor vessel having an inlet for introducing a feedstock containing contaminants into an interior of the reactor vessel, the interior being defined by an interior wall of the reactor vessel;a distributor assembly located below and in fluid communication with the inlet for discharging the feedstock radially outward towards the interior walls of the reactor vessel;a basket located within the reactor vessel interior and below the distributor assembly, the basket having a fluid permeable outer wall and a first fluid permeable inner wall that is spaced radially inward from the outer wall to define a first annular interior space of the basket, the first annular interior space of the basket containing a particulate material for removing contaminants from the feedstock, the outer wall of the basket being spaced radially inward from the interior wall of the reactor vessel to define an annular flow space between the outer wall of the basket and the interior wall of the reactor vessel, and wherein feedstocks introduced into the reactor vessel from the distributor assembly flow through the annular flow space and radially inward through the first annular interior space of the basket and through the particulate material to facilitate removal of contaminants from the feedstock to form a purified feedstock, the first fluid ...

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Номер записи: 97
03-08-2017 дата публикации

CONVERSION OF POLYMER CONTAINING MATERIALS TO PETROLEUM PRODUCTS

Номер: US20170218278A1
Автор: Bakaya Priyanka, Coates Benjamin Ralph
Принадлежит: PK Clean Technologies Inc.

Systems and methods achieve the conversion of polymer containing material into petroleum products such as hydrocarbon gas, wax, crude oil and diesel. The reactor and its system are designed to subject the polymer containing material to pyrolysis in a way that results in a higher petroleum product yield than conventional existing systems. The system has controls which allow for the heating temperature, rotation of the body, and throughput rate, to be adjusted depending on the reaction time required for the material inside the reactor. The condensing system is able to separate the products into the desired petroleum products by percentage output ranging from wax to crude-like oil to diesel-quality oil. 1. An apparatus to convert polymer containing materials into petroleum products , the apparatus comprises:a generally horizontal reactor body that has an inlet at the first end, at least one outlet at the other end and which is sealed on both ends, wherein the cylindrical body is inclined up to 30% from the inlet to the outlet;a controller configured to adjust the revolutions per minute of the cylindrical body depending on the reaction needs;a heating source disposed adjacent to the reactor body to apply external heating along one or more sides of the reactor body between the inlet and the outlet; andone or more internal scrapers disposed inside of the cylindrical body, wherein each scraper is configured to promote directional movement of materials within the cylindrical body.2. An apparatus as in claim 1 , further comprising a mechanism configured to adjust the incline of the cylindrical body at different sloped angles during operation of the cylindrical body.3. An apparatus as in claim 1 , further comprising a rotator mechanism configured to control rotation of the cylindrical body.4. An apparatus as in claim 1 , wherein the controllers further comprise feedback controls that provide guidance as to conditions required to vary yields of desired products from the ...

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Номер записи: 98
11-07-2019 дата публикации

WALL FOR CATALYTIC BEDS OF REACTORS AND METHOD FOR REALIZING THE SAME

Номер: US20190209990A1
Автор: Rizzi Enrico
Принадлежит: Casale SA

Catalytic chemical reactor comprising a perforated wall () adjacent to a supporting wall of the reactor or of a catalytic cartridge contained in the reactor, wherein said perforated wall comprises a plurality of panels () and comprises first sectors () resting on the supporting wall and second sectors () spaced from said supporting wall defining a cavity (), and wherein means are provided for local securing said gas-permeable wall to said supporting wall, said securing means comprising: a plurality of support elements () fixed to the supporting wall () and passing through respective openings () of the first sectors () of the gas-permeable wall and a respective plurality of locking elements () which can be associated with the said support elements, the panels of the gas-permeable wall being gripped between said supporting wall and said locking elements. 1. A catalytic chemical reactor comprising a catalytic bed and a gas-permeable wall facing the catalytic bed , wherein:said gas-permeable wall is an assembly of a plurality of panels and each of said panels extends over an angular sector of said permeable wall;the gas-permeable wall comprises first wall sectors which bear against a supporting wall adjacent to the gas permeable wall, and second wall sectors which are spaced from said supporting wall, the first sectors and the second sectors alternating with each other along the circumferential extension of the permeable wall;wherein said supporting wall is cylindrical or substantially cylindrical,wherein said second wall sectors comprise passages for a gas;the reactor further comprising local securing means of said gas-permeable wall to said supporting wall, said securing means comprising:a plurality of supports firmly fixed to the supporting wall and passing through respective openings of the first sectors of the gas-permeable wall;a respective plurality of locking elements which can be associated with said supports, the panels of the gas-permeable wall being clamped ...

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Номер записи: 99
12-08-2021 дата публикации

SPRAY, JET, AND/OR SPLASH INDUCED CIRCULATION AMONG INTEGRATED BUBBLING ZONES IN A BUBBLING FLUIDIZED BED REACTOR

Номер: US20210245130A1
Автор: Gustavsson Christer, Larsson Anton, Pallarès David, Seemann Martin, Ström Henrik, Thunman Henrik
Принадлежит:

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination. 1400400410410420500700. A fluidized bed reactor ( , ′ , , ′ , , , ) configured to react a fuel in a fluidized bed of bed solids , the reactor comprising:{'b': '303', 'claim-text': [{'b': '312', 'claim-text': [{'b': 314', '312, 'a LowOx gas inlet () disposed at a first portion of a bottom of the container and configured to fluidize the bed solids in the LowOx reaction zone () to create a first bubbling fluidized bed; and'}, {'b': 311', '314, 'a LowOx gas supply () configured to supply an inert and/or less-oxidizing gas to the LowOx gas inlet () to volatilize the fuel to yield a volatiles stream and char; and'}], 'a LowOx reaction zone () comprising, {'b': '332', 'claim-text': [{'b': 334', '332, 'an oxidant inlet () disposed at a second portion of the bottom of the container configured to fluidize the bed solids in the HiOx reaction zone () to create a second bubbling fluidized bed;'}, {'b': 331', '334', '311, 'a HiOx gas supply () configured to supply the oxidant inlet () with a gas that is more oxidizing than that supplied by the LowOx gas supply (), the HiOx gas supply and oxidant inlet configured to combust ...

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Номер записи: 100