Swing Adsorption Processes Utilizing Controlled Adsorption Fronts

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

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

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

Gas Purification Process Utilizing Engineered Small Particle Adsorbents

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

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

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

SYSTEMS, DEVICES AND METHODS FOR REGENERATION OF A SORBENT

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

REGENERABLE SORBENT FOR CARBON DIOXIDE REMOVAL

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

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

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

METHODS AND SYSTEMS FOR PERFORMING CHEMICAL SEPARATIONS

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

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

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

MOLECULAR GELATORS FOR CONTAINING OIL SPILLAGE

In accordance with the present subject matter there is provided peptide-based compounds. methods of making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for the containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds. 2. The compound as claimed in claim 1 , wherein Ris unsubstituted Cto Calkyl.3. The compound as claimed in claim 1 , wherein Ris unsubstituted Cto Calkyl.4. The compound as claimed in claim 1 , wherein Ris unsubstituted Calkyl.5. The compound as claimed in claim 1 , wherein Ris Cto Calkyl substituted with a heteroatom selected from O claim 1 , N and S claim 1 , wherein the heteroatom is substituted with Cto Calkyl.6. The compound as claimed in claim 1 , wherein Ris Cto Calkyl substituted with S which is further substituted with Cto Calkyl.7. The compound as claimed in claim 1 , wherein Ris unsubstituted Cto Calkyl claim 1 , Ris Cto Calkyl substituted with S which is further substituted with Cto Calkyl.9. A method of preparing the compound as claimed in .10. A gel comprising a compound as claimed in and a solvent.11. The gel as claimed in claim 10 , wherein the solvent comprises water claim 10 , an organic solvent claim 10 , or mixtures thereof.12. A method for producing a gel comprising contacting the compound as claimed in with a solvent.13. The method as claimed in claim 12 , wherein the solvent is selected from water claim 12 , an organic solvent claim 12 , or mixtures thereof.14. The method of claim 12 , wherein the solvent is a hydrocarbon.15. The method of claim 12 , wherein the solvent comprises a mixture of a hydrocarbon and water.16. A method of containing the spill of a hydrocarbon claim 1 , the method comprising contacting the hydrocarbon with the compound as claimed in to obtain a gel.17. A method of reclaiming solvent and a compound as claimed in from the gel. The subject matter described herein in general relates to peptide-based ...

Co-current regeneration process for adsorption media used for recovering condensable components from a gas stream

Disclosed is an improved process for recovering condensable components from a gas stream, in particular, heavier hydrocarbons from a gas stream. The present process uses solid adsorbent media to remove said heavier hydrocarbons wherein the adsorbent media is regenerated in a continuous fashion in a continuous adsorbent media co-current regeneration system using a stripping gas to provide a regenerated adsorbent media and a product gas comprising heavier hydrocarbons from a loaded adsorbent media.

METHOD OF DEPLETING A VOLATILE COMPONENT IN A MIXTURE USING A SORBENT CROSSLINKED ELASTOMER AND APPARATUS FOR PRACTICING THE METHOD

A method and apparatus for removing a volatile component from a mixture are disclosed. The method and apparatus employ a crosslinked elastomer with a glass transition temperature ≤+25° C. as the sorbent. 1. A method for depleting a volatile component in a mixture comprising the volatile component and at least one other component , the method comprising1) sorbing at least some of the volatile component into bulk of a nonporous crosslinked elastomer with a glass transition temperature ≤+25° C., thereby forming a depleted mixture containing less of the volatile component than the mixture before sorbing and enriching the nonporous crosslinked elastomer with sorbed volatile component thereby forming an enriched crosslinked elastomer, wherein during step 1), at least some of the volatile component is in gas phase,2) desorbing at least some of the sorbed volatile component from the enriched crosslinked elastomer, thereby forming a desorbed volatile component and a regenerated elastomer containing less of the sorbed volatile component than the enriched crosslinked elastomer prior to desorbing, and3) using the regenerated elastomer as all or a portion of the nonporous crosslinked elastomer in repeating step 1), and4) directing one or both of the depleted mixture during and/or after step 1) and the desorbed volatile component during and/or after step 2).2. The method of claim 1 , where the nonporous crosslinked elastomer is a nonporous crosslinked polyorganosiloxane elastomer.3. The method of or claim 1 , where the volatile component is a cyclic polyorganosiloxane with a degree of polymerization from 3 to 12 claim 1 , a silane claim 1 , or a noncyclic polyorganosiloxane with a DP up to 14.4. The method of or claim 1 , where the volatile component is a volatile organic compound.5. The method of claim 4 , where the volatile organic compound is selected from the group consisting of (i) an aldehyde claim 4 , (ii) an aromatic compound claim 4 , (iii) an alkane claim 4 , (iv) an ...

Method for reducing forces (hot fill/re-fill)

A method for controlling the magnitude of mechanical forces exerted by a solid ammonia storage material on walls of a container: determining a mechanical-strength limit of the container in terms of a hydraulic pressure P LIMIT or force F LIMIT under which the walls of container do not undergo plastic deformation, or deformation of more than 200% of deformation at the yield point; using a correlation between a temperature T SAT for the ammonia saturation/resaturation process, and the hydraulic pressure P MAT , or F MAT generated by the storage material during saturation/resaturation, to identify a minimum temperature T SATMIN where P MAT , or F MAT is kept below the limit for the mechanical strength by carrying out the saturation/resaturation process at the temperature T SAT fulfilling the condition of T SAT ≧T SATMIN .

METAL ORGANIC FRAMEWORK ABSORBENT PLATFORMS FOR REMOVAL OF CO2 AND H2S FROM NATURAL GAS

Provided herein are metal organic frameworks comprising metal nodes and N-donor organic ligands which have high selectivity and stability in the present of gases and vapors including HS, HO, and CO. Methods include capturing one or more of HS, HO, and COfrom fluid compositions, such as natural gas. 1. A method of capturing chemical species from a fluid composition , comprising:{'sub': a', 'b', '6-n', '2', 'w', 'x', 'y', 'z, 'contacting a metal organic framework of formula [MMF(O/HO)(Ligand)(solvent)]with a fluid composition including at least carbon dioxide and hydrogen sulfide; and'}capturing carbon dioxide and hydrogen sulfide from the fluid composition;{'sub': 'a', 'wherein Mis selected from periodic groups IB, IIA, IIB, IIIA, IVA, IVB, VIB, VIIB, and VIII;'}{'sub': 'b', 'sup': +3', '3+', '+2', '+3', '2+', '3+', '3+', '3+', '5+', '3+', '3+', '5+', '3+, 'wherein Mis selected from Al, Ga, Fe, Fe, Cr, Cr, Ti, V, V, Sc, In, Nb, and Y;'}wherein the Ligand is a polyfunctional organic ligand, and x is 1 or more;wherein n is 1, w is 1, x is 2, y is 0 to 4, solvent is a guest molecule, and z is at least 1.2. The method of claim 1 , wherein Mincludes at least one of Zn claim 1 , Co claim 1 , Ni claim 1 , Mn claim 1 , Zr claim 1 , Fe claim 1 , Ca claim 1 , Ba claim 1 , Pb claim 1 , Pt claim 1 , Pd claim 1 , Ru claim 1 , Rh claim 1 , Mg claim 1 , Al claim 1 , Fe claim 1 , Fe claim 1 , Cr claim 1 , Cr claim 1 , Ru claim 1 , Ru claim 1 , and Co.3. The method of claim 1 , wherein the Ligand includes at least one of pyridine claim 1 , pyrazine claim 1 , pyrimidine claim 1 , pyridazine claim 1 , triazine claim 1 , thiazole claim 1 , oxazole claim 1 , pyrrole claim 1 , imidazole claim 1 , pyrazole claim 1 , triazole claim 1 , oxadiazole claim 1 , thiadiazole claim 1 , quinoline claim 1 , benzoxazole claim 1 , and benzimidazole.4. The method of claim 1 , wherein Mis Ni.5. The method of or claim 1 , wherein the Ligand is pyrazine.6. The method of claim 1 , wherein the metal organic ...

METAL ORGANIC FRAMEWORK ABSORBENT PLATFORMS FOR REMOVAL OF CO2 AND H2S FROM NATURAL GAS

Provided herein are metal organic frameworks comprising metal nodes and N-donor organic ligands which have high selectivity and stability in the present of gases and vapors including HS, HO, and CO. Methods include capturing one or more of HS, HO, and COfrom fluid compositions, such as natural gas. 1. A method of capturing chemical species from a fluid composition , the method comprising{'sub': a', 'b', '6-n', '2', 'w', 'x', 'y', 'z, 'contacting a first metal organic framework characterized by the formula [MMF(O/HO)(Ligand)(solvent)]with a fluid composition comprising one or more of carbon dioxide, water, and hydrogen sulfide; and'}capturing one or more of carbon dioxide, water, and hydrogen sulfide from the fluid composition.2. The method of claim 1 , wherein Mcomprises elements selected from periodic groups IB claim 1 , IIA claim 1 , IIB claim 1 , IIIA claim 1 , IVA claim 1 , IVB claim 1 , VIB claim 1 , VIIB claim 1 , and VIII claim 1 , Mcomprises elements selected from periodic groups IIIA claim 1 , IIIB claim 1 , IVB claim 1 , VB claim 1 , VIB claim 1 , and VIII claim 1 , Ligand comprises an organic claim 1 , poly-functional claim 1 , N-donor ligand3. The method of claim 1 , wherein Mcomprises Cu claim 1 , Zn claim 1 , CO claim 1 , Ni claim 1 , Mn claim 1 , Zr claim 1 , Fe claim 1 , Ca claim 1 , Ba claim 1 , Pb claim 1 , Pt claim 1 , Pd claim 1 , Ru claim 1 , RhCd claim 1 , Mg claim 1 , Al claim 1 , Fe claim 1 , Fe claim 1 , Cr claim 1 , Cr claim 1 , Ru claim 1 , Ru claim 1 , or Co claim 1 , and Mcomprises Al claim 1 , Fe claim 1 , Fe claim 1 , Cr claim 1 , Cr claim 1 , Ti claim 1 , V claim 1 , V claim 1 , Sc claim 1 , In claim 1 , N claim 1 , or Y.4. The method of claim 1 , wherein Mcomprises Ni and Mcomprises Al claim 1 , Fe claim 1 , Fe claim 1 , V claim 1 , V claim 1 , or Nb.5. The method of claim 1 , wherein the ligand comprises pyridine claim 1 , pyrazine claim 1 , pyrimidine claim 1 , pyridazine claim 1 , triazine claim 1 , thiazole claim 1 , oxazole ...

RHO ADSORBENT COMPOSITIONS, METHODS OF MAKING AND USING THEM

Disclosed herein are novel RHO zeolites useful as kinetically selective adsorbents for oxygen and/or nitrogen. The adsorbents can be used in pressure swing adsorption processes for selectively adsorbing oxygen and/or nitrogen from feed streams such as an air stream or crude argon stream. Also disclosed are novel methods of preparing RHO zeolites, including in particular mixed-cation RHO zeolites. 1. A RHO zeolite having a Si/Al ratio of from 3.2 to 4.5 and containing non-proton extra-framework cations , wherein the zeolite contains at most 1 proton per unit cell , and wherein the size , number and charge of the extra-framework cations that are present in the zeolite are such that 1 or fewer non-proton extra-framework cations per unit cell are required to occupy 8-ring sites.2. The zeolite of claim 1 , wherein the zeolite has a Si/Al ratio of from 3.6 to 4.2.3. The zeolite of claim 1 , wherein the non-proton extra-framework cations comprise Li claim 1 , Mg claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu and/or Zn cations.4. The zeolite of claim 1 , wherein the non-proton extra-framework cations comprise Li and/or Zn cations.5. The zeolite of claim 4 , wherein said Land/or Zn cations make up the majority of the extra-framework cations that are present per unit cell.6. The zeolite of claim 4 , wherein said Land/or Zn cations make up at least 70% of the extra-framework cations that are present per unit cell.7. The zeolite of wherein said Land/or Zn cations make up at least 80% of the extra-framework cations that are present per unit cell.8. The zeolite of claim 1 , wherein the zeolite has a unit cell axis length of from 14.23 Å to 14.55 Å.9. The zeolite of claim 1 , wherein the zeolite has a unit cell axis length of from 14.23 Å to 14.50 Å.10. The zeolite of claim 1 , wherein the zeolite has a unit cell axis length of from 14.30 Å to 14.45 Å.11. The zeolite of claim 8 , wherein the zeolite is selected from LiZnRHO(3.9) claim 8 , LiZnHNaRHO(3.9) claim 8 ...

OXYGEN ADSORBENT, OXYGEN MANUFACTURING EQUIPMENT USING THE OXYGEN ADSORBENT AND OXYGEN MANUFACTURING METHOD

An oxygen adsorbent which can be manufactured at a low cost, and an oxygen manufacturing equipment and an oxygen manufacturing method which are capable of producing oxygen-enriched gas at a low cost by using the oxygen adsorbent are provided. The oxygen adsorbent comprises at least an oxide of a perovskite structure. The oxide is represented by a compositional formula of SrCaFeO, wherein 0.12≦x≦0.40, 0≦σ≦0.5 Since this oxide does not include La and Co included in a conventional oxygen adsorbent, it can be manufactured at a low cost. 1. An oxygen adsorbent comprising at least an oxide of a perovskite structure wherein said oxide is an oxide represented by a compositional formula of SrCaFeOwherein 0.12≦x0.40 , 0≦σ≦0.5.2. An oxygen manufacturing equipment comprising:an adsorption tower configured to store an oxygen adsorbent which adsorbs oxygen under an environment of a predetermined pressure and a predetermined temperature;a mixed gas feed unit configured to feed a mixed gas, which contains oxygen and other substances than oxygen, into said adsorption tower;a separated gas discharge unit configured to discharge a separated gas from said adsorption tower, the separated gas being produced by removing oxygen from the mixed gas with said oxygen adsorbent adsorbing oxygen; andan adsorbed gas discharge unit configured to reduce an inner pressure of said adsorption tower to desorb, from the oxygen adsorbent, oxygen adsorbed on the oxygen adsorbent so as to discharge the desorbed oxygen from the adsorption tower, wherein{'sub': 1−x', 'x', '3−σ, 'said oxygen adsorbent comprises at least an oxide of a perovskite structure wherein said oxide is an oxide represented by a compositional formula of SrCaFeOwherein 0.12≦x≦0.40, 0≦σ≦0.5.'}3. An oxygen manufacturing method comprising following steps performed repeatedly:{'sub': 1−x', 'x', '3−σ, 'a feed step of feeding a mixed gas into an adsorption tower, said mixed gas containing oxygen and other substances than oxygen, said ...

Carbon dioxide concentration apparatus and carbon dioxide supply method

Enhanced concentration of carbon dioxide, typically of carbon dioxide in the air, is advantageous in areas such as agriculture and horticulture involving raising of plants which utilize carbon dioxide for photosynthesis. Various carbon dioxide concentration apparatus have been developed, but the problems thereof are numerous. It is accordingly the purpose of the present invention to develop an adsorbent having exceptional adsorption of carbon dioxide, and to provide an apparatus for concentration of carbon dioxide in the air through the use thereof. Provided is a pressure swing concentration apparatus that uses ferrierite as the adsorbent, the ferrierite having been subjected to alkali treatment to give a pore diameter of 0.01-1 μm and a pore volume of 0.1 mL/g or above.

Molecular sieve depressurization system utilizing a low pressure inductor type vapor condenser

A method and system of depressurizing a molecular sieve used in ethanol production is shown and described. The method and system utilizes a vapor mixing condenser that receives a vapor sieve feed from the molecular sieve during the depressurization cycle. The vapor from the molecular sieve during the pressurization cycle is used to heat the 190-proof product flow. The heated product flow is diverted directly to the 190-proof product vaporizer, which increases the input product flow temperature to the vaporizer, thereby reducing the amount of heat needed to vaporize the 190-proof product flow. The reduction in heat needed reduces energy costs and increases equipment life.

STORING MOLECULE WITHIN POROUS MATERIALS WITH A SURFACE MOLECULAR BARRIER LAYER

In some aspects, the present disclosure provides compositions comprising a nanoporous material such as a metal organic framework and an amine containing compound. In some aspects, these compositions may be used to improve the affinity of a guest molecule to the nanoporous material relative a nanoporous material which had not been treated with the amine containing compound. 1. A composition comprising:(A) nanoporous material;(B) an amine-containing compound; and(C) a guest molecule;wherein the guest molecule is contained within the pores of the nanoporous material and the amine-containing compound is deposited at the openings of the pores of the nanoporous material.2. The composition of claim 1 , wherein the amine-containing compound is an alkylamineor substituted alkylamine.3. The composition of claim 2 , wherein the amine-containing compound is a terminal amine.4. (canceled)5. The composition of claim 3 , wherein the amine-containing compound is ethylenediamine.6. The composition of claim 1 , wherein the amine-containing compound is ammonia.7. The composition of claim 1 , wherein the amine-containing compound is deposited such that the amine group of the amine-containing compound is bound to the metal atom of the nanoporous material.8. The composition of claim 1 , wherein the nanoporous material is a metal organic framework.9. The composition of claim 8 , wherein metal organic framework comprises a pore diameter of less than 25 Å.1011.-. (canceled)1329.-. (canceled)30. The composition of claim 1 , wherein the guest molecule is CO claim 1 , CO claim 1 , SO claim 1 , NO claim 1 , CHor CH.31. A method of preparing a composition of comprising reacting a nanoporous material with a gaseous mixture of an amine-containing compound.32. The method of claim 31 , wherein the nanoporous material is a metal organic framework.33. The method of claim 31 , wherein the method comprises adding the amine-containing compound at a pressure from about 1 torr to about 50 torr.3435.-. ( ...

PROCESSES FOR REGENERATING SORBENTS, AND ASSOCIATED SYSTEMS

Processes for regenerating sorbents at high temperatures, and associated systems, are generally described. 1. A method , comprising:regenerating a sorbent that has been exposed to an acid gas via exposure to steam such that at least part of the acid gas is separated from the sorbent.2. The method of claim 1 , wherein the sorbent comprises an alkali metal borate claim 1 , ABO claim 1 , wherein A is one or more alkali metals claim 1 , B is Boron claim 1 , O is Oxygen claim 1 , and x is a number such that 0 Подробнее

METHOD FOR CLEANING A WASTE GAS FROM A METAL REDUCTION PROCESS

Gaseous perfluorocarbons in a waste gas are adsorbed by an adsorption device. Subsequently a decomposition of the perfluorocarbons takes place with formation of hydrogen fluoride. The hydrogen fluoride is converted with an oxide of a metal to be reduced, to the metal fluoride thereof. The metal fluoride formed is then fed again to the reduction process. 19-. (canceled)10. A method for cleaning a waste gas from a metal reduction process , comprising:adsorbing gaseous perfluorocarbons in the waste gas by an adsorption device;forming hydrogen fluoride by decomposing the perfluorocarbons obtained from said adsorbing;converting the hydrogen fluoride, using an oxide of a metal to be reduced, to a metal fluoride of the metal to be reduced; andfeeding the metal fluoride formed by said converting to the metal reduction process.11. The method as claimed in claim 10 ,further comprising detecting perfluorocarbons by a sensor system, andwherein the waste gas is supplied to the adsorption device if a pre-set limit value of the gaseous perfluorocarbons is exceeded.12. The method as claimed in claim 10 , wherein the adsorption device is operated according to a pressure swing adsorption principle.13. The method as claimed in claim 10 , wherein the adsorption device is operated according to a temperature swing adsorption principle.14. The method as claimed in claim 10 , wherein adsorption materials in the adsorption device are selected from the group consisting of activated carbon claim 10 , carbon nanotubes and a molecular sieve.15. The method as claimed in claim 10 , wherein adsorption materials in the adsorption device include silicalite-1.16. The method as claimed in claim 10 , wherein said forming of the hydrogen fluoride is by thermally decomposing the perfluorocarbons.17. The method as claimed in claim 10 , wherein the perfluorocarbons are decomposed by a plasma device.18. The method as claimed in claim 10 ,wherein said adsorbing uses at least two adsorption devices, ...

Adsorbent Materials And Methods of Adsorbing Carbon Dioxide

Methods of designing zeolite materials for adsorption of CO. Zeolite materials and processes for COadsorption using zeolite materials. 1. A pressure swing adsorption process for separating COfrom a feed gas mixture , wherein the process comprises:{'sub': '2', 'claim-text': a feed input end and a product output end; and', {'sub': '2', 'claim-text': (i) a zeolite having a Si/Al ratio above about 100 and a framework structure selected from the group consisting of AFT, AFX, DAC, EMT, EUO, IMF ITH, ITT, KFI, LAU, MFS, MRE, MTT, MWW, NES, PAU, RRO, SFF, STF, STI, SZR, TER, TON, TSC, TUN, VFI, and a combination thereof; or', a. a Si/Al ratio of about 5 to about 85; and', 'b. a potassium cation concentration of about 5% to about 100%;, '(ii) a zeolite with a framework structure selected from the group consisting of CAS, EMT, FAU, HEU, IRR, IRY, ITT, LTA, RWY, TSC and VFI, and a combination thereof, having], 'an adsorbent material selective for adsorbing CO, wherein the adsorbent material comprises one or more of the following], 'a) subjecting the feed gas mixture comprising COto an adsorption step by introducing the feed gas mixture into a feed input end of an adsorbent bed, wherein the adsorbent bed comprises{'sub': 2', '2, 'wherein the adsorbent bed is operated at a first pressure and at a first temperature wherein at least a portion of the COin the feed gas mixture is adsorbed by the adsorbent bed and wherein a gaseous product depleted in COexits the product output end of the adsorbent bed;'}{'sub': '2', 'b) stopping the introduction of the feed gas mixture to the adsorbent bed before breakthrough of COfrom the product output end of the adsorbent bed;'}{'sub': '2', 'c) reducing the pressure in the adsorption bed to a second pressure resulting in desorption of at least a portion of COfrom the adsorbent bed; and'}{'sub': '2', 'd) recovering at least a portion of COfrom the adsorbent bed.'}2. The process of claim 1 , wherein the first temperature is from about −20° C. to ...

INCREASING HYDROTHERMAL STABILITY OF AN ADSORBENT COMPRISING A SMALL PORE ZEOLITE IN A SWING ADSORPTION PROCESS

A method of increasing hydrothermal stability of an adsorbent comprising a small pore cationic zeolite in a swing adsorption process is disclosed. The method comprises the steps of coating the zeolite with a silylation agent to result in a silylated zeolite; and performing the swing adsorption process. The swing adsorption process comprises contacting the silylated zeolite with feed stream comprising water. The swing adsorption process may comprise removing COfrom a feed stream comprising COand water. 1. A process of increasing hydrothermal stability of an adsorbent comprising a zeolite in a swing adsorption process , the process comprising the steps of:coating the zeolite with a silylation agent to result in a silylated zeolite; andperforming the swing adsorption process,wherein the swing adsorption process comprises contacting the silylated zeolite with feed stream comprising water, andwherein the zeolite is a small pore cationic zeolite.2. The process of claim 1 , wherein the small pore zeolite has an 8 membered ring structure.3. The process of claim 1 , wherein the small pore zeolite has a maximum effective pore size of less than about 5 Å.4. The process of claim 1 , wherein the small pore zeolite comprises a structure type ABW claim 1 , AEI claim 1 , AFX claim 1 , ANA claim 1 , ATT claim 1 , BCT claim 1 , BIK claim 1 , BRE claim 1 , CAS claim 1 , CDO claim 1 , CHA claim 1 , DDR claim 1 , EAB claim 1 , EDI claim 1 , EEI claim 1 , EPI claim 1 , ERI claim 1 , ESV claim 1 , GIS claim 1 , GOO claim 1 , IHW claim 1 , ITE claim 1 , JBW claim 1 , KFI claim 1 , LEV claim 1 , LTA claim 1 , LTJ claim 1 , LTN claim 1 , MER claim 1 , MON claim 1 , MTF claim 1 , MWF claim 1 , NSI claim 1 , PAU claim 1 , PHI claim 1 , RHO claim 1 , RTH claim 1 , SAS claim 1 , SFW claim 1 , THO claim 1 , TSC claim 1 , UFI claim 1 , YUG claim 1 , ETL claim 1 , IFY claim 1 , ITW claim 1 , RTE claim 1 , RWR claim 1 , or combinations thereof.5. The process of claim 2 , wherein the small pore ...

Process for conditioning a container comprising a granular material

Process for conditioning a container including a granular material A enabling the adsorption of the nitrogen contained in a feed gas stream, including a step of injecting, into the container, a gas or a gas mixture G such that the adsorption capacity of the material A with respect to G is less than 10 Ncm 3 /g at 25° C. and 1 atm.

Gas separation device and gas separation method

A gas separation device having a simple structure and reducing the cost incurred in gas separation. The gas separation device ( 100 ) includes an adsorption tower ( 110 ) having at least one part thereof exposed to an atmosphere at a higher or lower temperature than normal temperature, a mixed gas feed unit ( 120 ), an adsorbent ( 130 ) provided inside the adsorption tower to adsorb a matter contained in a mixed gas upon contact with the mixed gas in a prescribed pressure and temperature environment, and separate the matter from the mixed gas, a separated gas discharge unit ( 140 ) that discharges a separated gas from the adsorption tower, and an adsorbed gas discharge unit ( 150 ) that reduces the pressure inside the adsorption tower and discharges from the adsorption tower the adsorption gas which is adsorbed by the adsorption agent. Heat reserving elements ( 160 ) are arranged in the adsorption tower at positions upstream and downstream of the adsorption agent in the mixed gas supply direction respectively such that the mixed gas, separated gas, and adsorbed gas flow through the heat reserving elements.

Metal complex, and absorbent, occlusion material and separation material produced therefrom

An object is to provide a metal complex with high water resistance. The above object is achieved by the metal complex comprising a multivalent carboxylic acid compound, a metal ion belonging to Groups 2 to 13 of the periodic table, an organic ligand capable of multidentate binding to the metal ion, and a monodentate organic ligand capable of binding to the metal ion. The metal complex has excellent gas adsorption, storage, and separation performance as well as excellent water resistance. The metal complex is stably present under high temperature and high humidity conditions, and can maintain high adsorption performance.

REGENERATIVE ADSORBENTS OF MODIFIED AMINES ON SOLID SUPPORTS

The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption. 1. A solid carbon dioxide sorbent with structural integrity for adsorbing carbon dioxide from a gas mixture , comprising a modified polyamine which is supported upon and within a solid support , wherein the modified polyamine is a reaction product of an excess of an amine selected from the group consisting of tetraethylenepentamine , pentaethylenehexamine , hexaethyleneheptamine , triethylenetetramine , diethylenetriamine , polyethylenimine and a mixture thereof , and a diepoxide , a triepoxide , a polyepoxide , and a polymeric epoxide to provide a material with amine functionalities , wherein the solid support is (a) a nano-structured support of silica , silica-alumina , alumina , titanium oxide , calcium silicate , carbon nanotubes , carbon , or a mixture thereof and having a primary particle size of less than about 100 nm; or (b) a natural or synthetic clay or a mixture thereof.2. The carbon dioxide sorbent according to claim 1 , in which the modified polyamine is present in an amount of 1% to 90% by weight of the sorbent claim 1 , or in an approximately equal amount by weight as the support.3. The carbon dioxide sorbent according to claim 1 , which further comprises a polyethylene oxide or a polyol or various mixtures thereof in an amount of 1 up to about 25% by weight of the sorbent claim 1 , wherein the polyol is glycerol claim 1 , oligomers of ethylene glycol or polyethylene glycol claim 1 , and the polyethylene oxides may be present as ...

METHODS AND SYSTEMS FOR PERFORMING CHEMICAL SEPARATIONS

The present disclosure provides a method for generating higher hydrocarbon(s) from a stream comprising compounds with two or more carbon atoms (C), comprising introducing methane and an oxidant (e.g., O) into an oxidative coupling of methane (OCM) reactor. The OCM reactor reacts the methane with the oxidant to generate a first product stream comprising the C compounds. The first product stream can then be directed to a separations unit that recovers at least a portion of the C compounds from the first product stream to yield a second product stream comprising the at least the portion of the C compounds. 1. A method for separating a product from a gas mixture , the method comprising:(a) at a first total pressure, directing a gas mixture comprising at least one impurity and a product gas into a pressure swing adsorption (PSA) vessel containing an adsorbent to adsorb the product gas on the adsorbent, wherein the product gas has a first partial pressure;(b) at a second total pressure, directing a sweep gas into the PSA vessel to adsorb the sweep gas on the adsorbent and displace the product from the adsorbent to yield a displaced product, wherein the sweep gas has a second partial pressure that is greater than the first partial pressure of the product in the gas mixture; and(c) desorbing the sweep gas from the adsorbent such that additional product is capable of adsorbing on the adsorbent.2. The method of claim 1 , wherein (c) is performed at substantially the first total pressure.3. The method of claim 1 , wherein an amount of the product that adsorbs on the adsorbent at the first partial pressure in (a) is substantially equivalent to the amount of sweep gas that adsorbs on the adsorbent at the second partial pressure in (b).4. The method of claim 1 , wherein an amount of heat released by the adsorption of the product in (a) is substantially equivalent to an amount of heat released by the adsorption of the sweep gas in (b).5. The method of claim 1 , wherein the ...

REGENERATIVE ADSORBENTS OF MODIFIED AMINES ON SOLID SUPPORTS

The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption. 1. A method for capturing and separating carbon dioxide from a gas mixture , which comprises:exposing a carbon dioxide sorbent to a gas mixture that contains carbon dioxide to effect adsorption of the carbon dioxide by the sorbent; andtreating the sorbent that contains adsorbed carbon dioxide under conditions sufficient to release the adsorbed carbon dioxide either at a higher carbon dioxide concentration or as purified carbon dioxide;wherein the sorbent has a sufficiently high surface area for solid-gas contact and sufficient structural integrity for adsorbing carbon dioxide from the gas mixture without degrading, the sorbent comprising a modified polyamine which is supported upon and within a solid support, with the modified polyamine formed as a reaction product that includes amine functionalities from reaction of an excess of amine and an epoxide, and with the solid support being (a) a nano-structured support of silica, silica-alumina, alumina, titanium oxide, calcium silicate, carbon nanotubes, carbon, or a mixture thereof and having a primary particle size of less than about 100 nm; or (b) a natural or synthetic clay or a mixture thereof.2. The method of claim 1 , wherein the sorbent is provided in a fixed claim 1 , moving claim 1 , or fluidized bed and the gas and bed are in contact for a sufficient time to trap the carbon dioxide in the sorbent claim 1 , wherein the sorbent is treated with sufficient heat claim 1 , reduced pressure claim ...

REGENERABLE SORBENT FOR CARBON DIOXIDE REMOVAL

A mixed salt composition adapted for use as a sorbent for carbon dioxide removal from a gaseous stream is provided, the composition being in solid form and including magnesium oxide, an alkali metal carbonate, and an alkali metal nitrate, wherein the composition has a molar excess of magnesium characterized by a Mg:X atomic ratio of at least about 3:1, wherein X is the alkali metal. A process for preparing the mixed salt is also provided, the process including mixing a magnesium salt with a solution comprising alkali metal ions, carbonate ions, and nitrate ions to form a slurry or colloid including a solid mixed salt including magnesium carbonate; separating the solid mixed salt from the slurry or colloid to form a wet cake; drying the wet cake to form a dry cake including the solid mixed salt; and calcining the dry cake to form a mixed salt sorbent. 1. A mixed salt composition adapted for use as a sorbent for carbon dioxide removal from a gaseous stream , the composition being in solid form and comprising:i) magnesium oxide;ii) an alkali metal carbonate; andiii) an alkali metal nitrate, wherein the composition has a molar excess of magnesium characterized by a Mg:X atomic ratio of at least about 1.1:1, wherein X is the alkali metal.2. The mixed salt composition of claim 1 , wherein the alkali metal comprises sodium.3. The mixed salt composition of claim 1 , wherein the Mg:X atomic ratio of at least about 4:1.4. The mixed salt composition of claim 1 , wherein the Mg:X atomic ratio of at least about 6:1.5. The mixed salt composition of claim 1 , wherein the alkali metal nitrate is present in an amount of at least about 1% by weight claim 1 , based on total dry weight of the mixed salt composition.6. The mixed salt composition of claim 1 , comprising the mixture MgO:NaCO:NaNO.7. The mixed salt composition of claim 1 , having a crush strength in pellet form claim 1 , as determined by the Shell method claim 1 , of at least about 0.3 MPa.8. A method for removing carbon ...

METHODS, MATERIALS, AND APPARATUSES ASSOCIATED WITH ADSORBING HYDROCARBON GAS MIXTURES

Adsorbed natural gas (ANG) technology is an energy efficient approach for storing NG at room temperature and low pressure. ANG technology can be applied to several aspects of the NG industry. The usage of an adsorbent material in natural gas storage and transport may provide increased storage density of NG at a given pressure and decreased pressure of gaseous fuel at a given gas density. Such adsorbent materials have been shown to store substantial quantities of natural gas at relatively modest pressures. Because lower-pressure vessels can be far less expensive than comparable sized high-pressure vessels, ANG based storage can be used to lower the cost of storing natural gas in various applications. 1. A method for producing an adsorbent material configured to adsorb hydrocarbon gas mixtures , the method comprising:obtaining an activated carbon material having a first surface area per weight and/or volume; andperforming a second stage activation process on the activated carbon material such that the activated carbon develops a second surface area per weight and/or volume, the second surface area per weight and/or volume being greater than the first surface area per weight and/or volume.2. The method of claim 1 , wherein the first surface area per weight and/or volume is less than about 1200 square meters per gram.3. The method of claim 1 , wherein the second surface area per weight and/or volume is greater than about 3000 square meters per gram.4. The method of claim 1 , wherein the second stage activation process includes a combination of two or more of a chemical activation claim 1 , a physical activation claim 1 , a controlled oxidation claim 1 , ultraviolet-ozone etching claim 1 , plasma etching claim 1 , or a carbonization.5. The method of claim 1 , further comprising performing a third stage activation process on the activated carbon material such that the activated carbon develops a third surface area per weight and/or volume claim 1 , the third surface area ...

SORBENT SYSTEM FOR REMOVING AMMONIA AND ORGANIC COMPOUNDS FROM A GASEOUS ENVIRONMENT

A first process and sorbent for removing ammonia from a gaseous environment, the sorbent comprised of graphene oxide having supported thereon at least one compound selected from metal salts, metal oxides and acids, each of which is capable of adsorbing ammonia. A second process and sorbent system for removing ammonia and a volatile organic compound from a gaseous environment; the sorbent system comprised of two graphene-based materials: (a) the aforementioned graphene oxide, and (b) a nitrogen and oxygen-functionalized graphene. The sorbents are regenerable under a pressure gradient with little or no application of heat. The processes are operable through multiple adsorption-desorption cycles and are applicable to purifying and revitalizing air contaminated with ammonia and organic compounds as may be found in spacesuits, aerospace cabins, underwater vehicles, and other confined-entry environments. 19-. (canceled)10. A sorbent composition comprising graphene oxide having supported thereon at least one compound selected from metal salts , metal oxides , and acids , each of which is capable of reversibly adsorbing ammonia.11. The sorbent composition of wherein the metal of the metal salts or metal oxides is selected from the group consisting of cations of Groups 1 claim 10 , 2 claim 10 , and the first row transition metals of Groups 3 through 12 of the Periodic Table claim 10 , and mixtures thereof; and wherein the acids are selected from the group consisting of hydrochloric claim 10 , sulfuric claim 10 , nitric claim 10 , and phosphoric acids.12. The sorbent composition of wherein the metal of the metal salts or metal oxides is selected from the group consisting of cations of lithium claim 10 , magnesium claim 10 , calcium claim 10 , strontium claim 10 , iron claim 10 , copper claim 10 , zinc claim 10 , and mixtures thereof; and further wherein the metal salt comprises a halide anion selected from the group consisting of fluoride claim 10 , chloride claim 10 , iodide ...

PROCESS FOR CARBON DIOXIDE RECOVERY FROM A GAS STREAM CONTAINING CARBON DIOXIDE AND HYDROCARBONS

The present invention relates to a process for purification of a carbon dioxide feedstock, for example from a production well, which comprises carbon dioxide and gaseous and liquid C+ hydrocarbons. Specifically, a carbon dioxide feedstream is passed through one or more separation unit wherein each separation unit removes one or more C+ hydrocarbon from the carbon dioxide feedstream to provide a richer carbon dioxide gas stream. The process comprises one or more separation unit which employs an adsorption media and has an adsorption step and a media regeneration step wherein the regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process. One embodiment of this method provides for the use of a different regenerable adsorbent media in two or more separation units. 1. A process to provide a carbon dioxide-rich gas stream from a carbon dioxide feedstream comprising one or more C+ hydrocarbon (i.e. , one or more of methane , ethane , propane , butane , pentane , or heavier hydrocarbons) , whereby the one or more C+ hydrocarbon is separated from the carbon dioxide feedstream to form a first treated carbon dioxide-rich gas stream by means of a first separation unit comprising:{'sub': '1', '(i) a first adsorption unit comprising a first adsorption bed comprising a first adsorbent media which adsorbs one or more C+ hydrocarbon to form a loaded first adsorbent media and'}{'sub': '1', 'claim-text': [{'sub': '1', '(a) passing the carbon dioxide feedstream through the first adsorption unit of the first separation unit at a first flow rate generating a loaded first adsorbent media comprising one or more C+ hydrocarbon and a first treated carbon dioxide-rich gas stream,'}, {'sub': 1', '1, '(b) regenerating the loaded first adsorbent comprising one or more C+ hydrocarbon by releasing the adsorbed one or more C+ hydrocarbon from the loaded first adsorbing media and forming regenerated first adsorbent media,'}, {'sub': '1', '(c) recovering ...

METHOD FOR SOLVENT RECOVERY AND ACTIVATED CARBON REGENERATION

An activated carbon device for adsorbing solvent from a flow of air is regenerated by feeding heated inert gas to the activated carbon and by applying a reduced pressure to the heated activated carbon. 1101. A method of regenerating activated carbon in a solvent adsorbing device () , said carbon containing a solvent that was adsorbed on said activated carbon in solvent adsorbing step in which a flow of air that contains solvent is passed through said carbon , said method comprising the steps of:i) heating said activated carbon, said heating being carried out at least in part by a flow of heated inert gas;ii) applying a reduced pressure Pred to the heated carbon in said device to remove at least part of said solvent from said activated carbon;iii) recovering the solvent;wherein during said heating step i),{'b': 107', '1', '102', '2', '1', '2, 'a.—said heated inert gas is circulated from said activated carbon to at least one heat exchanger () to increase the gas temperature to temperature T and from said heat exchanger to said activated carbon () to increase the temperature of the carbon, at least some of said activated carbon having temperature T, wherein T>T,'}{'b': '2', 'b.—the temperature T of at least part of said activated carbon is lower than the boiling point of said solvent at the pressure P present in said activated carbon adsorbing device, whereby no solvent is recovered in step i).'}2102102102. The method of claim 1 , wherein in said step of solvent adsorption claim 1 , said solvent-containing air is passed through a bed () of said activated carbon along a first direction claim 1 , from a first side (A) to a second side (B) of said bed () claim 1 , and wherein in said heating step said heated inert gas is passed through said carbon () along a second direction from said second side (B) to said first side (A) claim 1 , said second direction being opposite to said first direction.3. The method of claim 2 , wherein at least during said heating step i) the ...

OXYGEN CONCENTRATION DEVICE

Provided is an oxygen concentration device which, as an oxygen concentration device having a reduced difference in flow rates of gas which flows through a pressure equalization valve of a pressure equalization path during a purge step and a pressure equalization step, is provided at at least one end side of the pressure equalization valve with a pressure control member having a difference in pressure loss due to the direction of gas flow so that pressure loss of the gas which flows through the pressure equalization path in one direction becomes nearly equal to that of the gas which flows therethrough in the opposite direction. 1. An oxygen concentration device which generates oxygen-enriched gas , comprising: adsorbent cylinders packed with an adsorbent which preferentially adsorbs nitrogen rather than oxygen; a compressor which supplies compressed air to the adsorbent cylinders; a flow path switching valve for switching between a flow path between the compressor and the adsorbent cylinders and a flow path between the adsorbent cylinders and an exhaust pipe for discharging desorbed gas to outside of the system in order to repeat at a fixed timing an adsorption step in which compressed air is supplied to the adsorption cylinders and nitrogen in the compressed air is adsorbed to generate unadsorbed oxygen , a desorption step in which the adsorption cylinders are purged under reduced pressure to desorb the nitrogen and regenerate the adsorbent , and a pressure equalization step in which an adsorbent cylinder after completion of the adsorption step and an adsorption cylinder after completion of the desorption step are connected to each other to equalize pressure of the two cylinders; and a pressure equalization valve provided on a pressure equalization path which connects between the adsorbent cylinders , wherein a pressure control member having a difference in pressure loss due to the direction of gas flow is provided at at least one end side of the pressure ...

METAL ORGANIC FRAMEWORK ABSORBENT PLATFORMS FOR REMOVAL OF CO2 AND H2S FROM NATURAL GAS

Provided herein are metal organic frameworks comprising metal nodes and N-donor organic ligands which have high selectivity and stability in the present of gases and vapors including HS, HO, and CO. Methods include capturing one or more of HS, HO, and COfrom fluid compositions, such as natural gas. 1. A method of capturing chemical species from a fluid composition , comprising:{'sub': a', 'b', '6-n', '2', 'w', 'x', 'y', 'z, 'contacting a metal organic framework of formula [MMF(O/HO)(Ligand)(solvent)]with a fluid composition including at least carbon dioxide and hydrogen sulfide; and'}capturing carbon dioxide and hydrogen sulfide from the fluid composition;{'sub': 'a', 'sup': 2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '2+', '+3', '2+', '+3', '2+', '3+', '2+', '3+', '3+, 'wherein Mis selected from Zn, Co, Ni, Mn, Zr, Fe, Ca, Ba, Pb, Pt, Pd, Ru, Rh, Mg, Al, Fe, Fe, Cr, Cr, Ru, Ru, and Co;'}{'sub': 'b', 'wherein Mis selected from periodic groups IIIA, IIIB, IVB, VB, VIB, and VIII;'}wherein the Ligand is a polyfunctional organic ligand, and x is 1 or more;wherein n is 1, w is 1, x is 2, y is 0 to 4, solvent is a guest molecule, and z is at least 1.2. The method of claim 1 , wherein Mis selected from Al claim 1 , Ga claim 1 , Fe claim 1 , Fe claim 1 , Cr claim 1 , Cr claim 1 , Ti claim 1 , V claim 1 , V claim 1 , Sc claim 1 , InNb claim 1 , and Y.3. The method of claim 1 , wherein the Ligand comprises pyridine claim 1 , pyrazine claim 1 , pyrimidine claim 1 , pyridazine claim 1 , triazine claim 1 , thiazole claim 1 , oxazole claim 1 , pyrrole claim 1 , imidazole claim 1 , pyrazole claim 1 , triazole claim 1 , oxadiazole claim 1 , thiadiazole claim 1 , quinoline claim 1 , benzoxazole claim 1 , or benzimidazole.4. The method of claim 1 , wherein the metal organic framework includes open metal sites.5. The method of claim 1 , wherein capturing comprises physical adsorption claim 1 , chemisorption claim 1 , or both physical adsorption and ...

METHOD AND DEVICE FOR THE REVERSIBLE ADSORPTION OF CARBON DIOXIDE

The present invention relates to a device for the reversible adsorption of carbon dioxide from a gas mixture, comprising at least one adsorbent vessel comprising one or a plurality of gas permeable cartridge vessels of an inert and dimensionally stable material, and each cartridge comprising a suitable polymeric particular adsorbent having a primary amino functionality; to an arrangement including the device, and to a method for adand desorption of carbon dioxide. 1. A device for the reversible adsorption of carbon dioxide from a gas mixture , comprising one adsorbent vessel comprising one or a plurality of gas permeable cartridge vessels of an inert and dimensionally stable material , and each cartridge comprising a suitable polymeric particular adsorbent having a primary amino functionality at a total capacity of at least 2.0 eq./l , a surface area (BET) in the range of from 25 to 75 m/g , and an average pore diameter of 1 to 200 nm , and further comprising means for desorption of the adsorbed carbon dioxide by pressure , humidity or a means for temperature adsorption swing , or both , and means for directing the desorbed gas mixture from the adsorbent cartridges.2. The device according to claim 1 , wherein the cartridge vessels comprise a gas permeable membrane with an average pore diameter in the range of from 0.01-0.25 mm.3. The device according to claim 1 , wherein the shape and thickness of the cartridges is determined by allowing for an adsorption-desorption regeneration cycle of between 2 and 24 hours.4. The device according to claim 1 , further comprising means for the supplying the gas mixture to the cartridges; a means for recuperation of heat or fluids or heat and fluids claim 1 , and a desorbed gas mixture claim 1 , and at least one of: a means for measuring the carbon dioxide adsorption level claim 1 , a means for measuring the carbon dioxide gas flow rates; a means for contacting the adsorbent with a warm fluid for inducing desorption of the carbon ...

ADSORBENTS WITH STEPPED ISOTHERMS FOR GAS STORAGE APPLICATIONS

The disclosure provides for adsorbents with stepped isotherms for gas storage applications. 4. The adsorbent claim 1 , wherein M is selected from the group consisting of Mg claim 1 , Ca claim 1 , Ba claim 1 , Zr claim 1 , V claim 1 , Cr claim 1 , Mo claim 1 , W claim 1 , Mn claim 1 , Fe claim 1 , Ni claim 1 , Cu claim 1 , and Ce.5. The adsorbent of claim 4 , wherein M is Fe.8. The adsorbent of claim 1 , wherein the adsorbent's volumetric usable capacity is (i) not significantly reduced when there is a minimum desorption pressure requirement claim 1 , (ii) not significantly reduced due to heat released during adsorption of the one or more gases to the adsorbent claim 1 , and/or (iii) is not significantly reduced due to cooling resulting from de-adsorption of the one or more gases from the adsorbent.9. The adsorbent of claim 1 , wherein the minimum desorption pressure requirement is around 5.8 bar and the one or more gases is a natural gas.10. The absorbent or device of claim 9 , wherein natural gas is adsorbed under an adsorption pressure between 35 and 65 bar.11. The device of claim 6 , wherein the one or more gases are selected from natural gas claim 6 , hydrogen or methane.12. The device of claim 6 , wherein the device is a fuel tank or fuel cylinder.13. The device of claim 12 , wherein the fuel tank or fuel cylinder delivers stored natural gas claim 12 , methane or hydrogen to a combustion engine.14. An automobile claim 12 , bus claim 12 , or truck comprising the device of .18. The method of claim 15 , wherein M is selected from the group consisting of Mg claim 15 , Ca claim 15 , Ba claim 15 , Zr claim 15 , V claim 15 , Cr claim 15 , Mo claim 15 , W claim 15 , Mn claim 15 , Fe claim 15 , Ni claim 15 , Cu claim 15 , Co and Ce.19. The method of claim 18 , wherein M is Fe or Co.20. The method of claim 15 , wherein the one or more gases are selected from natural gas claim 15 , hydrogen or methane. This application claims priority under 35 U.S.C. § 119 from ...

ORGANIC-INORGANIC HYBRID NANOPOROUS MATERIAL CONTAINING INTRAMOLECULAR ACID ANHYDRIDE FUNCTIONAL GROUP, COMPOSITION FOR ADSORPTION COMPRISING THE SAME, AND USE THEREOF FOR SEPARATION OF HYDROCARBON GAS MIXTURE

The present invention relates to an organic-inorganic hybrid nanoporous material, maintaining a nanoporous skeleton structure formed by coordination of an organic ligand containing an aromatic compound to a trivalent central metal ion, and further having an intramolecular acid anhydride functional group modified on the aromatic compound of the nanoporous skeleton structure, and thereby exhibits selectivity for olefins, and an adsorbent comprising the same. Specifically, the organic-inorganic hybrid nanoporous material of the present invention exhibits an excellent olefin-selective adsorption capacity through differences in adsorption equilibrium and adsorption rate, and thus can be usefully employed in the separation of C2-C4 hydrocarbons. Further, the olefins adsorbed to the organic-inorganic hybrid nanoporous material can be desorbed by purging of an inert gas which is not liquefied by way of mild vacuum conditions or compression, and thus, the organic-inorganic hybrid nanoporous material can be used to prepare olefins by separating C2-C4 hydrocarbon mixtures. 1. An organic-inorganic hybrid nanoporous material ,maintaining a nanoporous skeleton structure formed by coordination of an organic ligand containing an aromatic compound to a trivalent central metal ion, andfurther comprising an intramolecular acid anhydride functional group modified on the aromatic compound of the nanoporous skeleton structure.221.-. (canceled)22. The organic-inorganic hybrid nanoporous material of claim 1 , {'br': None, 'sub': 6', '3', '2', '2', '3', 'a', '4', 'b', 'c, '{[CH(CO)CO]M(O)(OH)}\u2003\u2003[Chemical Formula 1]'}, 'wherein at least a portion of the skeleton structure is represented by Chemical Formula 1 below, or a hydrate or solvate thereofin Chemical Formula 1, M is a trivalent metal ion, and a, b, and c are each independently a rational number from 0 to 4.23. The organic-inorganic hybrid nanoporous material of claim 1 , in which an independent COOH functional group claim 1 ...

COMPOSITIONS FOR CARBON DIOXIDE SEPARATION USING STEAM REGENERATION, AND METHOD FOR PREPARING SAME

Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a COadsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed COis disclosed.

Adsorbent Materials And Methods of Adsorbing Carbon Dioxide

Methods of designing zeolite materials for adsorption of CO. Zeolite materials and processes for COadsorption using zeolite materials. 1. A vacuum temperature swing adsorption process for separating a COfrom a feed gas mixture , wherein the process comprises:{'sub': '2', 'claim-text': a feed input end and a product output end; and', {'sub': '2', 'claim-text': (i) a zeolite having a Si/Al ratio above about 100 with a CAS framework structure; or', a. a Si/Al ratio of about 1 to about 100; and', 'b. a potassium cation concentration of about 0% to about 100%;, '(ii) a zeolite with a framework structure selected from the group consisting of AFT, AFX, CAS, DAC, EMT, EUO, HEU, IMF, IRR, IRY, ITH, ITT, KFI, LAU, MFS, MRE, MTT, MWW, NES, PAU, RRO, RWY, SFF, STF, STI, SZR, TER, TON, TSC, TUN, VFI, and a combination thereof, having], 'an adsorbent material selective for adsorbing CO, wherein the adsorbent material comprises one or more of the following, {'sub': 2', '2, 'wherein the adsorbent bed is operated at a first pressure and at a first temperature wherein at least a portion of the COin the feed gas mixture is adsorbed by the adsorbent bed and wherein a gaseous product depleted in COexits the product output end of the adsorbent bed;'}], 'a) subjecting the feed gas mixture comprising COto an adsorption step by introducing the feed gas mixture into a feed input end of an adsorbent bed, wherein the adsorbent bed comprises{'sub': '2', 'b) stopping the introduction of the feed gas mixture to the adsorbent bed before breakthrough of COfrom the product output end of the adsorbent bed; and'}{'sub': 2', '2', '2, 'c) simultaneously heating the adsorbent bed to a second temperature higher than the first temperature and passing a purge gas, substantially free of CO, through the adsorbent bed thereby resulting in a reduction in the pressure in the adsorption bed to a second pressure, resulting in desorption of at least a portion of COfrom the adsorbent bed and recovering at least a ...

Methods of drying propylene oxide

Methods of drying streams that include propylene oxide. The methods may include contacting a stream that includes propylene oxide with molecular sieves. The molecular sieves may be in a drying unit, and may be regenerated. The streams that include propylene oxide may include one or more other organic compounds.

Regeneration of purification beds with a jet compressor in an open loop cycle

Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas (102) is provided at a first pressure and combined with a recycle composition (116) from the vessel (110, 110a) containing the material being regenerated. These streams form a regeneration fluid composition (114) at a second pressure less than the inert gas pressure, which is then routed to the vessel to regenerate the purification bed. A jet compressor (108) may be used for the combining of the inert gas and recycle streams. The recycled composition allows reduction in inert gas usage, while a portion is flared or otherwise disposed of.

Thermomembranverfahren und -vorrichtung

Methods and systems for performing chemical separations

The present disclosure provides a method for generating higher hydrocarbon(s) from a stream comprising compounds with two or more carbon atoms (C2+), comprising introducing methane and an oxidant (e.g., 02) into an oxidative coupling of methane (OCM) reactor. The OCM reactor reacts the methane with the oxidant to generate a first product stream comprising the C2+ compounds. The first product stream can then be directed to a separations unit that recovers at least a portion of the C2+ compounds from the first product stream to yield a second product stream comprising the at least the portion of the C2+ compounds.

PROCESS FOR CONCENTRATING CO2 FROM AIR AND DILUTE CO2 STREAMS USING MOF BASED PHYSISORBENTS

A method for capturing COfrom a gas stream using a metal organic framework (MOF) based physisorbent COconcentrator is provided. In the method, MOF material is pretreated, a gas stream is then introduced into the COconcentrator which comprises the pretreated MOF material. COfrom the gas stream is captured with the COconcentrator to generate a CO-free stream, which is discharged the from the COconcentrator into the atmosphere. Introduction of the gas stream into the COconcentrator is stopped when the pretreated MOF material becomes saturated with CO. The COconcentrator with the saturated MOF material is then regenerated by introducing hot air, hot nitrogen, vacuum, or a combination thereof into the COconcentrator thereby generating a CO-rich stream. The CO-rich stream is diverted for purification and the regenerated COconcentrator is recycled for future capture of CO. 1. A method for capturing COfrom a gas stream containing approximately 400 ppm to 6% of COusing a metal organic framework (MOF) based physisorbent COconcentrator , comprising:pretreating a MOF material under airflow or vacuum;{'sub': '2', 'introducing a gas stream into the COconcentrator which comprises the pretreated MOF material;'}{'sub': 2', '2', '2', '2, 'capturing, with the COconcentrator, COfrom the gas stream to generate a CO-free stream in the COconcentrator;'}{'sub': 2', '2, 'discharging the CO-free stream from the COconcentrator into the atmosphere;'}{'sub': 2', '2, 'stopping the introduction of the gas stream into the COconcentrator when the pretreated MOF material becomes saturated with CO;'}{'sub': 2', '2, 'regenerating the COconcentrator from the saturated MOF material by introducing hot air, hot nitrogen, vacuum, or a combination thereof, thereby generating a CO-rich stream; and'}{'sub': 2', '2, 'diverting the generated CO-rich stream for direct purification or mixing with a stream of industrial exhaust with similar COconcentrations for subsequent purification; and'}{'sub': 2', '2, ' ...

Regeneration of purification beds with a jet compressor in an open loop cycle

METHODS AND SYSTEMS FOR REGENERATING A PURIFICATION BED TAKE ADVANTAGE OF INERT GAS PRESSURE, SUCH AS, FOR EXAMPLE, SUPPLIED BY A PIPELINE. THE INERT GAS (102) IS PROVIDED AT A FIRST PRESSURE AND COMBINED WITH A RECYCLE COMPOSITION (116) FROM THE VESSEL (110,110A) CONTAINING THE MATERIAL BEING REGENERATED. THESE STREAMS FORM A REGENERATION FLUID COMPOSITION (114) AT A SECOND PRESSURE LESS THAN THE INERT GAS PRESSURE, WHICH IS THEN ROUTED TO THE VESSEL TO REGENERATE THE PURIFICATION BED. A JET COMPRESSOR (108) MAY BE USED FOR THE COMBINING OF THE INERT GAS AND RECYCLE STREAMS. THE RECYCLED COMPOSITION ALLOWS REDUCTION IN INERT GAS USAGE, WHILE A PORTION IS FLARED OR OTHERWISE DISPOSED OF.

Regeneration of purification beds with a jet compressor in an open loop cycle

Regeneration of purification beds with a jet compressor in an open loop cycle

Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas ( 102 ) is provided at a first pressure and combined with a recycle composition ( 116 ) from the vessel ( 110, 110 a ) containing the material being regenerated. These streams form a regeneration fluid composition ( 114 ) at a second pressure less than the inert gas pressure, which is then routed to the vessel to regenerate the purification bed. A jet compressor ( 108 ) may be used for the combining of the inert gas and recycle streams. The recycled composition allows reduction in inert gas usage, while a portion is flared or otherwise disposed of.

regeneração de leitos de purificação com um compressor a jato em um ciclo de laço aberto

在开路循环中用喷气压缩机使净化床再生

本发明提供了一种利用惰性气体(例如通过管线供应)的压力使净化床再生的方法和系统。惰性气体(102)以第一压力供应，并与来自容器(110，110a)的循环组合物(116)组合，所述容器(110，110a)含有要再生的材料。这些物料流在小于惰性气体压力的第二压力下形成再生流体组合物(114)，然后其进入容器中使净化床再生。喷气压缩机(108)可用于使惰性气体和循环流组合。循环回收的组合物使得惰性气体的使用量降低，同时一部分被燃烧或以其他方法处理。

Regeneration of purifying layers by means of jet compressor in open contour

FIELD: chemistry. SUBSTANCE: invention relates to method of regeneration of purifying layer, located on vessel, which is applied in processes of olefin polymerisation, as well as to system of regeneration of purifying layer, which is located in vessel when said process is performed. Method applied cycle with open contour. Recirculation of part of medium, discharged from vessel, as composition subjected to recirculation, is realised. The remaining part is removed into atmosphere. Method includes the following stages: a) supply of inert gas, which is under first pressure P1; b) combining inert gas with subjected to recirculation composition, discharged from vessel, with obtaining regenerating composition, which is under second pressure P2; c) supply of regenerating composition into vessel in order to regenerate purifying layer. Subjected to recirculation composition is under third pressure P3 in such a way that P1>P2>P3. EFFECT: elaboration of method and system of regeneration of purifying layer in one passage, which makes it possible to reduce inert gas consumption. 22 cl, 9 dwg, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C08F 2/00 C08F 10/00 C08F 110/00 B01D 53/04 B01J 20/34 C07C 7/00 (13) 2 527 452 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011147501/04, 15.04.2010 (24) Дата начала отсчета срока действия патента: 15.04.2010 (72) Автор(ы): Рандалл Л. ФОРС (US), Рашель Л. ЛЕ-ГЕЙ (US) 24.04.2009 US 61/172,442 (43) Дата публикации заявки: 27.05.2013 Бюл. № 15 R U (73) Патентообладатель(и): ЮНИВЕЙШН ТЕКНОЛОДЖИЗ, ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 27.08.2014 Бюл. № 24 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.11.2011 C 2 C 2 A 20.11.1990. EP 0586244 A1 09.03.1994. DE 2631225 A1 26.01.1978. Henzler H J: "Continuous mixing of Fluids" Ullmann`s Encyclopedia of Industrial ...

Regeneration of purification beds with a jet compressor in an open loop cycle

Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas (102) is provided at a first pressure and combined with a recycle composition (116) from the vessel (110, 110a) containing the material being regenerated. These streams form a regeneration fluid composition (114) at a second pressure less than the inert gas pressure, which is then routed to the vessel to regenerate the purification bed. A jet compressor (108) may be used for the combining of the inert gas and recycle streams. The recycled composition allows reduction in inert gas usage, while a portion is flared or otherwise disposed of.

在开路循环中用喷气压缩机使净化床再生

本发明提供了一种利用惰性气体(例如通过管线供应)的压力使净化床再生的方法和系统。惰性气体(102)以第一压力供应，并与来自容器(110，110a)的循环组合物(116)组合，所述容器(110，110a)含有要再生的材料。这些物料流在小于惰性气体压力的第二压力下形成再生流体组合物(114)，然后其进入容器中使净化床再生。喷气压缩机(108)可用于使惰性气体和循环流组合。循环回收的组合物使得惰性气体的使用量降低，同时一部分被燃烧或以其他方法处理。

Methods and systems for performing chemical separations

烯烃的回收方法

提供一种烯烃回收方法，所述烯烃回收方法在通过变压吸附法从以烯烃为原料的化学反应工艺流中回收未反应的烯烃的方法中，可以在较高的脱附操作压力、更优选常压以上的压力下脱附气体而将分离剂再利用。所述烯烃回收方法使用金属络合物作为分离剂，就该金属络合物而言，在示出吸附压力(P)和烯烃吸附量(A)的吸附等温线中，在吸附量(A)为压力(P)的函数且该函数为A＝f(P)的情况下，在用P微分A所得的值dA/dP中，吸附时显示极大值的压力P3及脱附时显示极大值的压力P4处于吸附操作压力P1与脱附操作压力P2之间。

Methods and systems for performing chemical separations

The present disclosure provides a method for generating higher hydrocarbon(s) from a stream comprising compounds with two or more carbon atoms (C2+), comprising introducing methane and an oxidant (e.g., O2) into an oxidative coupling of methane (OCM) reactor. The OCM reactor reacts the methane with the oxidant to generate a first product stream comprising the C2+ compounds. The first product stream can then be directed to a separations unit that recovers at least a portion of the C2+ compounds from the first product stream to yield a second product stream comprising the at least the portion of the C2+ compounds.

Cyclical method of producing high-purity nitrogen and optionally a high-purity hydrocarbon from a feedstock containing nitrogen and a hydrocarbon

The invention relates to a cyclical method for producing a nitrogen fraction, the purity of which is greater than or equal to 95 mol %, and a hydrocarbon-enriched fraction from a filler containing nitrogen and a hydrocarbon, said method using a specific class of porous hybrid solids as an adsorbent in a pressure-swing adsorption (PSA) process. The invention also relates to equipment for implementing said method.

Improved methane rejection and ethylene recovery

A process for the production of an ethylene product stream from a reactor effluent stream includes passing the reactor effluent stream and an ethylene recycle stream to a deethanizer zone to provide a light hydrocarbon feedstream and a C 3 + stream. The light hydrocarbon stream goes to a demethanizer zone to provide a C 2 bottom stream and an overhead stream, then splitting the C 2 bottom stream into an ethane stream and an ethylene stream. The ethylene stream is divided into a first ethylene product stream and an ethylene co-feed stream, which is fed subsequently to the overhead stream to a pressure swing adsorption process producing an adsorber effluent stream during an adsorption step and a desorbed stream on desorption. The desorbed stream constitutes all or a portion of the ethylene recycle stream.

Method for recovering olefin

Provided is a method for recovering, by pressure swing adsorption, unreacted olefins from a stream of a chemical reaction process in which an olefin is used as a material, the method enables desorption of gas at a relatively high desorption operation pressure, more preferably at a pressure not lower than the atmospheric pressure, and enables reuse of a separation agent. As the separation agent, a metal complex is used, in which pressure P3 at which a local maximum of dA/dP is obtained during adsorption and pressure P4 at which a local maximum of dA/dP is obtained during desorption are located between an adsorption operation pressure P1 and a desorption operation pressure P2, where dA/dP represents a value obtained by differentiating A by P, assuming that an olefin adsorption amount (A) is a function of an adsorption pressure (P), i.e., A = f(P), on an adsorption isotherm indicating the pressure (P) and the adsorption amount (A).

Improved compositions of rho adsorbents, methods for their preparation and application

FIELD: chemistry.SUBSTANCE: invention relates to RHO zeolites, which can be used as kinetically selective adsorbents for oxygen and/or nitrogen, as well as for removing low levels of N2from Ar and removing CO2from methane. RHO zeolites with a Si/Al ratio from 3.2 to 4.5 and the content of non-proton out-lattice cations are disclosed, wherein zeolites contain no more than 1 proton per unit cell, and the size, number and charge of out-lattice cations that are present in the zeolite are such that 1 or less non-proton out-lattice cations per unit cell are required to occupy the positions of the 8-element ring.EFFECT: zeolites have a comparable kinetic selectivity with CMS materials (carbon molecular sieves), but they are able to function at a much higher rate of adsorption and desorption.16 cl, 15 dwg, 6 tbl, 15 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C01B 39/04 C01B 39/06 C01B 39/20 B01J 20/18 B01J 20/28 B01J 23/02 ФЕДЕРАЛЬНАЯ СЛУЖБА B01J 23/04 ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ B01J 23/06 B01J 23/34 B01J 23/72 (12) (11) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (13) 2 754 269 C2 B01J 23/745 (2006.01) B01J 23/75 (2006.01) B01J 23/755 (2006.01) B01J 29/072 (2006.01) B01J 29/14 (2006.01) B01J 29/16 (2006.01) B01J 35/04 (2006.01) B01J 35/10 (2006.01) B01J 37/04 (2006.01) (см. продолжение) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК 2018133859, 26.09.2018 Дата регистрации: 31.08.2021 Приоритет(ы): (30) Конвенционный приоритет: 28.09.2017 US 15/718,467 (43) Дата публикации заявки: 26.03.2020 Бюл. № 9 (45) Опубликовано: 31.08.2021 Бюл. № 25 Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U 2 7 5 4 2 6 9 26.09.2018 Стр.: 1 (73) Патентообладатель(и): ЭР ПРОДАКТС ЭНД КЕМИКАЛЗ, ИНК. (US) (56) Список документов, цитированных в отчете о поиске: GEOFFREY M. JOHNSON et al. Flexibility and Cation Distribution upon Lithium Exchange of Aluminosilicate and ...

Система для обессеривания с механизмом переноса сорбента

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2004 132 208 (13) A B 01 J 8/18 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004132208/15, 24.02.2003 (71) Çà âèòåëü(è): ÊÎÍÎÊÎÔÈËËÈÏÑ ÊÎÌÏÀÍÈ (US) (30) Ïðèîðèòåò: 04.04.2002 US 60/370,488 11.04.2002 US 10/120,700 (43) Äàòà ïóáëèêàöèè çà âêè: 10.06.2005 Áþë. ¹ 16 (74) Ïàòåíòíûé ïîâåðåííûé: Åãîðîâà Ãàëèíà Áîðèñîâíà (87) Ïóáëèêàöè PCT: WO 03/084656 (16.10.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá òðàíñïîðòèðîâêè òîíêîäèñïåðñíûõ òâåðäûõ ÷àñòèö èç óãëåâîäîðîäíîé ñðåäû âûñîêîãî äàâëåíè â êèñëîðîäíóþ ñðåäó íèçêîãî äàâëåíè , âêëþ÷àþùèé ñëåäóþùèå ñòàäèè: (a) ïîâûøåíèå äàâëåíè â øëþçîâîì áóíêåðå äî äàâëåíè íàïîëíåíè , îáåñïå÷èâà ïîëó÷åíèå øëþçîâîãî áóíêåðà ïîä âûñîêèì äàâëåíèåì, (b) íàïîëíåíèå øëþçîâîãî áóíêåðà ïîä âûñîêèì äàâëåíèåì òâåðäûìè ÷àñòèöàìè èç óãëåâîäîðîäíîé ñðåäû âûñîêîãî äàâëåíè , îáåñïå÷èâà ïîëó÷åíèå íàïîëíåííîãî øëþçîâîãî áóíêåðà ïîä âûñîêèì äàâëåíèåì, (c) ñáðîñ äàâëåíè â íàïîëíåííîì øëþçîâîì áóíêåðå ïîä âûñîêèì äàâëåíèåì äî äàâëåíè âûïóñêà, îáåñïå÷èâà ïîëó÷åíèå íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, (d) ïðîäóâêó íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, ïðîäóâî÷íûì ãàçîì, îáåñïå÷èâà ïîëó÷åíèå ïðîäóòîãî íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, è (e) âûïóñê òâåðäûõ ÷àñòèö èç ïðîäóòîãî íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, â êèñëîðîäíóþ ñðåäó íèçêîãî äàâëåíè , îáåñïå÷èâà ïîëó÷åíèå îïîðîæíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè. 2. Ñïîñîá ïî ï.1, ïðè êîòîðîì äàâëåíèå íàïîëíåíè îòëè÷àåòñ íå áîëåå ÷åì íà 20%, îò äàâëåíè â óãëåâîäîðîäíîé ñðåäå âûñîêîãî äàâëåíè è äàâëåíèå âûïóñêà îòëè÷àåòñ íå áîëåå ÷åì íà 20%, îò äàâëåíè êèñëîðîäíîé ñðåäû íèçêîãî äàâëåíè , â ÷àñòíîñòè, äàâëåíèå â óãëåâîäîðîäíîé ...

Адсорбирующие материалы и способы адсорбции диоксида углерода

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 121 824 A (51) МПК B01D 53/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018121824, 15.11.2016 (71) Заявитель(и): ЭКСОНМОБИЛ АПСТРИМ РИСЕРЧ КОМПАНИ (US), ДЖОРДЖИЯ ТЕК РИСЕРЧ КОРПОРЕЙШН (US) Приоритет(ы): (30) Конвенционный приоритет: 16.11.2015 US 62/255,789; 18.05.2016 US 62/337,991 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.06.2018 US 2016/062034 (15.11.2016) (87) Публикация заявки PCT: A WO 2017/087385 (26.05.2017) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ адсорбции со сдвигом давления для отделения СО2 от исходной смеси газов, при этом, способ включает стадии, на которых а) исходную смесь газов, содержащую СО2, подвергают обработке на стадии адсорбции посредством введения исходной смеси газов с конца для впуска сырья слоя адсорбента, при этом, слой адсорбента включает конец для впуска сырья и конец для выпуска продукта; и адсорбирующий материал, выполненный с возможностью избирательной адсорбции СО2, при этом, адсорбирующий материал включает один или более материалов из следующих: (i) цеолит с отношением Si/Al более около 100 и каркасной структурой, выбранной из группы, состоящей из AFT, AFX, DAC, EMT, EUO, IMF, ITH, ITT, KFI, LAU, MFS, MRE, MTT, MWW, NES, PAU, RRO, SFF, STF, STI, SZR, TER, TON, TSC, TUN, VFI и их сочетаний; или (ii) цеолит с каркасной структурой, выбранной из группы, состоящей из CAS, EMT, FAU, HEU, IRR, IRY, ITT, LTA, RWY, TSC и VFI и их сочетаний, имеющий (а) отношение Si/Al от около 5 до около 85 и (b) концентрацию катиона калия от около 5% до около 100%; Стр.: 1 A 2 0 1 8 1 2 1 8 2 4 (54) АДСОРБИРУЮЩИЕ МАТЕРИАЛЫ И СПОСОБЫ АДСОРБЦИИ ДИОКСИДА УГЛЕРОДА 2 0 1 8 1 2 1 8 2 4 (86) Заявка PCT: (72) Автор(ы): РАВИКОВИЧ Питер И. (US), ШОЛЛ Дэвид (US), КАМАКОТИ Прити (US), ПАУР Чаранджит (US), СТРОМАЙЕР Карл Г. ( ...

Metode dan perangkat termo-membran

Separator for e.g. regeneration of activated carbon packing comprises two separate regions, with diffusion of preferentially-adsorbed component of gas or vapor mixture against temperature generation

Adsorption occurs at a given region and temperature. Desorption occurs at another, separate region and temperature. Only preferentially-adsorbed components cross from the first to the second region. An Independent claim is also included for a separator for the above process. Preferred Features: The mixture comprises gases and/or vapors. The absorber (10) is panel- or tube shaped. Material transport through the absorber is diffusive and/or convective. Its pores or gaps have such mean effective dimensions that adsorbate transport by pore-, gap- and/or Knudsen diffusion is possible. The adsorbent is activated carbon, especially sintered, with density preferably 0.6-1.2 g/l and porosity of 30%-60%. First and second regions have gas-tight separation preventing macroscopic flow between them. Only for the preferentially-adsorbed component is a permeable separation present, this being provided only by the adsorbent. A temperature gradient is applied, with temperature increasing from the first to the second region. The second region is heated, permanently or frequently. Activated carbon packing contacts the adsorbent, pressed against it.

Thermomembrane method and device

The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first, lower temperature in a first operating zone with a carbon membrane which is arranged adjacent to a surface of a porous transport matrix or which is applied on a surface of the matrix, whereby at least one fluid component is adsorbed and at least one component of the fluid mixture preferably permeates the membrane; heating a surface spatially distant from the membrane and/or a part of the porous transport matrix to a second, higher temperature which facilitates the thermal desorption of adsorbed components in a second operating zone; separately removing the fluid mixture depleted by the at least one permeated component from the first operating zone and the fluid mixture enriched with the at least one permeated component from the second operating zone. The invention also relates to a device for carrying out the inventive method.

Thermomembrane method and device

The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first, lower temperature in a first operating zone with a carbon membrane which is arranged adjacent to a surface of a porous transport matrix or which is applied on a surface of the matrix, whereby at least one fluid component is adsorbed and at least one component of the fluid mixture preferably permeates the membrane; heating a surface spatially distant from the membrane and/or a part of the porous transport matrix to a second, higher temperature which facilitates the thermal desorption of adsorbed components in a second operating zone; separately removing the fluid mixture depleted by the at least one permeated component from the first operating zone and the fluid mixture enriched with the at least one permeated component from the second operating zone. The invention also relates to a device for carrying out the inventive method.

Thermomembrane method and device

热膜法和装置

本发明涉及至少具有两组分流体混合物的分离方法。本发明方法包括下列步骤:使流体混合物在第一低温下的第一工作区与一种碳膜接触,碳膜在一种多孔传输基质的表面上或涂覆在该表面上,从而吸附至少一种流体组分,并且至少一种流体混合物的组分优选通过膜渗透;加热有空间距离膜的多孔传输基质表面和/或多孔传输基质的一部分至第二较高的温度,在该温度下,在第二工作区热解吸吸附的组分,分别从第一工作区排出至少一种渗透组分被贫化的流体混合物,从第二工作区排出至少一种渗透组分被富集的流体混合物。本发明还涉及实施本发明方法的装置。

Thermomembrane method and device

The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first, lower temperature in a first operating zone with a carbon membrane which is arranged adjacent to a surface of a porous transport matrix or which is applied on a surface of the matrix, whereby at least one fluid component is adsorbed and at least one component of the fluid mixture preferably permeates the membrane; heating a surface spatially distant from the membrane and/or a part of the porous transport matrix to a second, higher temperature which facilitates the thermal desorption of adsorbed components in a second operating zone; separately removing the fluid mixture depleted by the at least one permeated component from the first operating zone and the fluid mixture enriched with the at least one permeated component from the second operating zone. The invention also relates to a device for carrying out the inventive method.

Processo e dispositivo de termomembrana

Patente de Invenção: <B>"PROCESSO E DISPOSITIVO DE TERMOMEMBRANA"<D>. A presente invenção refere-se a um processo para a separação de uma mistura líquida de pelo menos dois componentes, abrangendo as etapas: contato da mistura fluida em uma primeira temperatura baixa em um primeiro setor de trabalho com uma membrana de carbono, que é prevista adjacente a uma superfície de uma matriz de transporte porosa ou que é aplicada sobre uma superfície da matriz, sendo efetuada adsorção de pelo menos um componente fluido e pelo menos um componente da mistura fluida permeia preferentemente através da membrana; aquecimento de uma superfície que se encontra afastada espacialmente da membrana e/ou de uma parte da matriz de transporte porosa para uma segunda temperatura mais alta, a qual possibilita a dessorção térmica dos componentes adsorvidos em um segundo setor de trabalho; bem como evacuação separada da mistura fluida em pelo menos um componente permeado do segundo setor de trabalho. Além disso, é publicado um dispositivo para a execução do processo de acordo com a invenção.

Thermomembrane method and device

The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first, lower temperature in a first operating zone with a carbon membrane which is arranged adjacent to a surfac e of a porous transport matrix or which is applied on a surface of the matrix, whereby at least one fluid component is adsorbed and at least one component of the fluid mixture preferably permeates the membrane; heating a surface spatially distant from the membrane and/or a part of the porous transport matrix to a second, higher temperature which facilitates the thermal desorption of adsorbed components in a second operating zone; separately removing the fluid mixture depleted by the at least one permeated component from the first operating zone and the fluid mixture enriched with the at lea st one permeated component from the second operating zone. The invention also relates to a device for carrying out the inventive method.

Thermomembrane method and device

Bulus, en azindan iki bilesenden olusan sivi karisimin ayrilmasina yönelik metot ile ilgili olup su adimlardan olusur. Sivi karisiminin birinci, düsük isida birinci islem kisminda, gözenekli nakil kalibina yaklastirilmis olarak öngörülmüs olan ya da kalibin üst yüzeyine yerlestirilmis olan karbon membran ile temas ettirilmesi ve burada en azindan sivi bilesenin adsorbsiyonunun meydana gelmesi ve sivi karisimin en azinda bir bileseninin tercihen membran tarafindan geçirilmesi; membran tarafindan hacimsel olarak uzakta bulunan yüzeylerden birisinin isitilmasi ve/veya gözenekli nakil kalibinin bir kisminin ikinci, daha yüksek isiya isitilmasi ve bunun da termik desorbsiyonu adsorbe eden bilesenleri ikinci islem alaninda mümkün kilmasi ve en azindan bir geçmis bilesende zenginlestirilmis sivi karisimin ikinci çalisma kismindan ayrilarak iletilmesi. Ayrica bulusa uygun metodun uygulanmasi için bir tertibat açiklanmaktadir. The invention relates to the method for separating the liquid mixture, at least consisting of two components, and consists of water steps. Contacting the liquid mixture with the carbon membrane, which is provided in the first, low temperature first process, positioned closer to the porous conveyance calib or placed on the top surface of the calib, wherein at least one component of the liquid component is adsorbed and preferably the membrane is passed through at least one component; heating of one of the surfaces that are volumetrically distant from the membrane and / or a part of the porous transport calibration is the second, higher heat heating, which makes it possible in the second treatment area and at least a second component of the mixture of enriched liquid in a past component. . In addition, a device is disclosed for the application of the method according to the invention.

Thermomembrane method and device.

Thermomembrane method and device

The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first, lower temperature in a first operating zone with a carbon membrane which is arranged adjacent to a surface of a porous transport matrix or which is applied on a surface of the matrix, whereby at least one fluid component is adsorbed and at least one component of the fluid mixture preferably permeates the membrane; heating a surface spatially distant from the membrane and/or a part of the porous transport matrix to a second, higher temperature which facilitates the thermal desorption of adsorbed components in a second operating zone; separately removing the fluid mixture depleted by the at least one permeated component from the first operating zone and the fluid mixture enriched with the at least one permeated component from the second operating zone. The invention also relates to a device for carrying out the inventive method.

Thermomembrane method and device

The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first, lower temperature in a first operating zone with a carbon membrane which is arranged adjacent to a surface of a porous transport matrix or which is applied on a surface of the matrix, whereby at least one fluid component is adsorbed and at least one component of the fluid mixture preferably permeates the membrane; heating a surface spatially distant from the membrane and/or a part of the porous transport matrix to a second, higher temperature which facilitates the thermal desorption of adsorbed components in a second operating zone; separately removing the fluid mixture depleted by the at least one permeated component from the first operating zone and the fluid mixture enriched with the at least one permeated component from the second operating zone. The invention also relates to a device for carrying out the inventive method.

吸附剂材料和吸附二氧化碳的方法

用于CO 2 吸附的沸石材料的设计方法。沸石材料和使用沸石材料的CO 2 吸附方法。

탄화수소혼합물로부터에틸렌및프로필렌,그리고불포화탄화수소분리용흡착제제조방법,그리고이흡착제를이용한분리방법

본 발명은 불포화탄화수소를 선택적으로 흡착시킬 수 있는 매우 안정한 원통형과 구형의 새로운 고체흡착제를 제조하기 위한 방법 및 과정을 제공하고자 하는 것으로서, 이 흡착제들은 ㉠ 은화합물과, ㉡ 상기화합물을 최소한으로 지지해줄 수 있는 충분한 표면적을 지니는 적절한 지지체로 구성되는 혼합물질을 시발로 하여, 이후 이 혼합물질을 함침단계와 열처리단계를 순차적으로 거침으로써 최종적인 흡착제를 제조할 수 있게 된다. 이러한 흡착제 제조과정 중 첨가제(촉진제, promoter)를 선택적으로 부가시킬 수 있다. 본 발명의 또다른 목적은 혼합물로부터 에틸렌 그리고 (혹은) 프로필렌 성분을 선택적으로 분리하는 공정을 제공함에 있다. 이때 혼합물은 에틸렌 그리고 (혹은) 프로필렌 성분 이외에 수소(H 2 ), 헬륨(He), 메테인(CH 4 ), 에테인(C 2 H 6 ), 혹은 프로페인(C 3 H 8 ) 성분으로 이루어진 두 성분 혹은 상기 성분 중의 일부로 구성된 다성분 혼합물를 의미한다. 본 공정은 0℃∼100℃의 온도와 1∼100기압의 압력조건에서 상기 혼합물을 본 흡착제가 충진된 탑에 통과시키고 이 후 압력을 낮추거나 온도를 높임으로써 탈착과정에 의해 고순도의 에틸렌과 (혹은) 프로필렌 생성물을 얻을 수 있다.

Reduced expansion forces created by materials for storage of ammonia

FIELD: technological processes. SUBSTANCE: invention relates to storage of ammonia in solid material. Described is a method of controlling the value of mechanical forces applied by solid material for storage of ammonia to walls of a container containing material for storage in its inner volume, when storage material is subjected to saturation/re-saturation with ammonia inside said storage container, said method comprising: a. use of dependence between i. temperature for the process of saturation/re-saturation with ammonia in the material for storage, then T SAT , as well as the density of the material for ammonia completely saturated with ammonia, then—D MAT , and ii. hydraulic pressure P MAT or equivalent mechanical force F MAT , created by material for storage during saturation/re-saturation at said temperature T SAT and said density D MAT , for determination of minimum temperature, then—T SATMIN , saturation/re-saturation process, wherein said relationship is obtained using an experimental comparison procedure, in which experimental data are obtained, or by computer simulation, b. saturation/re-saturation process at temperature T SAT , when condition T SAT ≥T SATMIN , so that P MAT or F MAT , applied by material for storage, have values below mechanical strength limit in terms of hydraulic pressure P LIMIT or hydraulic force F LIMIT container in inner volume, at which container walls do not undergo plastic deformation or do not undergo deformation of more than 200 % of deformation at point of yield point of container walls. Method for calculating a container for accommodating solid ammonia and container are also described. EFFECT: improved operational characteristics of material. 14 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 721 007 C2 (51) МПК C01C 1/00 (2006.01) G01N 3/00 (2006.01) B01D 53/04 (2006.01) B01J 20/02 (2006.01) B01J 20/34 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01C 1/00 ( ...

Nano-structure supported solid regenerative polyamine and polyamine polyol absorbents for the separation of carbon dioxide from gas mixtures including the air

본 발명은 나노실리카와 같은 나노 구조의 지지체 위에 고착된 아민 또는 아민/폴리올 조성물을 포함하는 재생성 지지된 아민 흡착제에 관한 것이다. 당해 흡착제는 구조 일체성뿐만 아니라 높은 선택도를 제공하고 공기를 포함하는 가스 혼합물로부터 이산화탄소를 효율적으로 포획하는 증가된 능력을 제공한다. 당해 흡착제는 재생성이고 흡수-탈착 사이클의 다수 작동을 통해 사용될 수 있다. The present invention relates to a regenerated supported amine adsorbent comprising an amine or amine / polyol composition fixed on a nanostructured support such as nanosilica. The adsorbents provide not only structural integrity but also high selectivity and increased ability to efficiently capture carbon dioxide from gas mixtures comprising air. The adsorbent is reproducible and can be used through multiple operations of the absorption-desorption cycle. 나노 구조의 지지체, 지지된 아민 흡착제, 재생성, 흡수-탈착 사이클 Nanostructured Support, Supported Amine Adsorbents, Regeneration, Absorption-Desorption Cycle

Organic-inorganic porous hybrid material containing intramolecular anhydride groups, adsorbent composition comprising the same and usage thereof for the separation of gaseous hydrocarbon mixtures

본 발명은 3가 중심 금속이온에 방향족 화합물을 포함하는 유기 리간드가 배위되어 형성되며, 골격에서 방향족 화합물 상에 형성된 분자내 산무수물 작용기를 포함하여, 올레핀에 선택성을 나타내는 유무기 하이브리드 나노세공체 및 이를 포함하는 흡착제에 관한 것이다. 구체적으로, 본 발명의 유무기 하이브리드 나노세공체는 흡착평형 및 흡착속도 차이를 통해 우수한 올레핀 선택적 흡착능을 발휘하므로, C2 내지 C4 범위의 탄화수소 분리에 유용하게 사용될 수 있다. 나아가, 이에 흡착된 올레핀은 약한 진공 조건 또는 압축에 의해 액화하지 않는 비활성 기체의 퍼징에 의해 탈착될 수 있으므로, C2 내지 C4 탄화수소 혼합물을 분리하여 올레핀을 제조하는데 사용할 수 있다. The present invention is formed by coordination of an organic ligand containing an aromatic compound in a trivalent central metal ion, including an intramolecular acid anhydride functional group formed on an aromatic compound in the skeleton, and an organic-inorganic hybrid nanoporous material exhibiting selectivity to olefins and It relates to an adsorbent containing it. Specifically, the organic-inorganic hybrid nanoporous material of the present invention exhibits excellent olefin selective adsorption ability through adsorption equilibrium and adsorption rate differences, and thus can be usefully used for separating hydrocarbons in the C2 to C4 range. Furthermore, the olefin adsorbed thereto may be desorbed by purging of an inert gas that is not liquefied by weak vacuum conditions or by compression, and thus C2 to C4 hydrocarbon mixtures can be separated and used to prepare olefins.

Solid adsorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixture

A solid adsorbent for an unsaturated hydrocarbon com­ prising (a) (i) a silver or copper(I) halide or (ii) a silver or copper(I) halide and the halide of a bivalent metal, or (iii) a silver or copper(I) halide and an aluminum halide, and (b) polystyrene or a derivative thereof. This solid adsorbent can effectively adsorb an unsaturated hydrocarbon such as ethylene from a gas mixture by contact­ ing the gas mixture therewith at a temperature of -40°C to 140°C under normal pressures.

Composite adsorbents for purifying hydrocarbon streams

Applicant has developed an improved adsorbent useful in removing contaminants from various hydrocarbon streams. The adsorbent contains a zeolite, an alumina and a metal component. The metal component (Madd) is present in an amount at least 10 mole % the stoichiometric amount of metal (M) (expressed as the oxide) needed to balance the negative charge of the zeolite lattice. In a specific application an adsorbent comprising zeolite X, alumina and sodium is used to purify an ethylene stream in order to remove CO 2 , H 2 S, methanol, and other S— and O— containing compounds.

Composite adsorbents for purifying hydrocarbon streams

Applicant has developed an improved adsorbent useful in removing contaminants from various hydrocarbon streams. The adsorbent contains a zeolite, an alumina and a metal component. The metal component (Madd) is present in an amount at least 10 mole % the stoichiometric amount of metal (M) (expressed as the oxide) needed to balance the negative charge of the zeolite lattice. In a specific application an adsorbent comprising zeolite X, alumina and sodium is used to purify an ethylene stream in order to remove CO 2 , H 2 S, methanol, and other S— and O— containing compounds.

Pressure-temperature swing adsorption process for the separation of heavy hydrocarbons from natural gas streams

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

Pressure-temperature swing adsorption process

A pressure-temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a product stream. The present process is particularly effective and beneficial in removing contaminants such as CO 2 and/or H 2 S from a natural gas at high adsorption pressures (e.g., at least 500 psig) to create product streams of very high purity (i.e., very low contaminant levels).

Selective sulfur removal process

A cyclic process for selectively separating hydrogen sulfide from a gas mixture including CO 2 is operated by contacting the gas mixture under sorption conditions with a non-aqueous sorbent comprising a basic non-protogenic nitrogenous compound to react the H 2 S with the basic compound so that the H 2 S can be sorbed by the compound. The compound containing the sorbed H 2 S can then be subjected to desorption conditions by which the H 2 S is desorbed and the sorbent readied for another sorption step in the cycle. The basic nitrogenous compound can be carried on a porous solid sorbent, e.g., a solid oxide such as alumina, silica, silica-alumina, zeolites, or a mesoporous and/or macroporous solid oxide. The process may be operated using a pressure swing, temperature swing, partial pressure swing, purge displacement, or a combination thereof between the sorption and desorption portions of the cycle, preferably in a rapid cycle operation.

Swing adsorption processes utilizing controlled adsorption fronts

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

Temperature swing adsorption process for the separation of target species from a gas mixture

A temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a product stream. The present process is particularly effective and beneficial in removing contaminants such as CO 2 and/or H 2 S from a natural gas at relatively high adsorption pressures (e.g., at least 500 psig) to create product streams of very high purity (i.e., very low contaminant levels).

Gas purification process utilizing engineered small particle adsorbents

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

Process for separation of unsaturated hydrocarbon from gas mixture

A solid adsorbent for an unsaturated hydrocarbon comprising (a) (i) a silver or copper(I) halide or (ii) a silver or copper(I) halide and the halide of a bivalent metal, or (iii) a silver or copper(I) halide and an aluminum halide, and (b) polystyrene or a derivative thereof. This solid adsorbent can effectively adsorb an unsaturated hydrocarbon such as ethylene from a gas mixture by contacting the gas mixture therewith at a temperature of -40° C. to 140° C. under normal pressures.

Adsorbent based on alumina containing sodium and doped with an alkaline element, for the capture of acid molecules

The invention relates to an adsorbent comprising an alumina support and at least one alkaline element, said adsorbent being obtained by introducing at least one alkaline element, identical to or different from sodium, onto an alumina support having a sodium concentration, expressed as Na 2 O equivalent and prior to the introduction of the alkaline element(s), of between 1000 and 5000 ppm by weight in relation to the total weight of the support. The invention also relates to methods for the production of the adsorbent and to the use thereof in a method for the elimination of acid molecules, such as COS and/or CO 2 .

Method of separating carbon monoxide and carbon monoxide adsorbent used in this method

In a method of the invention for selectively adsorbing CO in a gas mixture containing at least CO and CO 2 with an adsorbent and desorbing the adsorbed CO, the adsorbent carries one metal or a mixture of metals selected from Ni, Mn, Rh, Cu(I) and Ag, and an adsorption temperature is set to be 50° to 250° C. to allow a single-step treatment.

焼成されたアルミナ上に二酸化炭素および水不純物を吸着させることにより空気を精製する方法

(57)【要約】 【課題】乾燥され脱炭酸された空気を得ることを可能と するために大気空気流において見出され得るＣＯ 2 およ び水蒸気をともに吸着するためのプロセスを提供するこ と。 【解決手段】二酸化炭素（ＣＯ 2 ）および水蒸気不純物 の少なくともどれほどかは、多くとも１０重量％の少な くとも１種のアルカリ金属酸化物またはアルカリ土類金 属酸化物を含む少なくとも１種の焼成されたアルミナ上 に前記不純物を吸着させることにより除去される、二酸 化炭素および水蒸気を含む空気流を精製するための方法 であって、前記吸着は−１０℃ないし８０℃の温度で実 施される。

System for desulfurization with the gear of transfer of the sorbent

FIELD: chemical industry; petrochemical industry; other industries; methods and the devices for removal of the sulfur from the streams of the fluid medium containing the hydrocarbons. SUBSTANCE: the invention is pertaining to the method and the installation for removal of the sulfur from the streams of the fluid medium containing the hydrocarbons. The method of desulfurization includes the following stages: a) contacting of the hydrocarbon-containing stream of the fluid medium with the solid particles of the sorbent in the reactor, (b) the increase of the pressure in the reactor airlock storage bin up to the filling pressure, (c) transportation of the sulfur filled particles of the sorbent from the reactor into the being under pressure airlock storage bin of the reactor, (d) reduction of the pressure in the filled airlock storage bin to the pressure of release, (e) transportation of the sulfur filled particles of the sorbent from the filled and being under low pressure airlock storage bin of the reactor into the recuperator and (f) contacting of the sorbent particles with the oxygen-bearing recuperation stream. The installation of desulfurization contains the reactor with the fluidized layer of the sorbent, the receiver of the reactor for reception of the sulfur filled particles of the sorbent, the airlock storage bin of the reactor, the receiver of the recuperator for reception of the recuperated particles of the sorbent, the airlock storage bin of the recuperator for reception of the recuperated particles of the sorbent and the installation of the recuperation. The control system of transmission of the finely dispersed solid particles from the first container into the second container contains the airlock storage bin disposed streamwise between the first and second containers, the valve for filling up by the particles disposed streamwise between the first container and the airlock storage bin, the valve for release of the particles disposed streamwise between the ...

Adsorbents and methods for the separation of ethylene and propylene and/or unsaturated hydrocarbons from mixed gases

Adsorbents useful in the selective adsorption of unsaturated hydrocarbons, the manufacture of the adsorbents, and processes for the separation of unsaturated hydrocarbons using the adsorbents.

Rapid temperature swing adsorption contactors for gas separation

Novel adsorbent contactors and methods are disclosed herein for use in temperature swing adsorption for gas separation applications, as well as for heat exchange applications.

Swing adsorption processes utilizing controlled adsorption fronts

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

Sodium-containing and alkaline element-doped alumina-based adsorbent for trapping acidic molecules