Hydrocarbon Sorbed Patents (Class 95/143)
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Publication number: 20140157984Abstract: Systems and methods are provided for improving separation of gas phase streams using an adsorbent, such as 8-member ring zeolite adsorbents or DDR type zeolite adsorbents. Suitable gas phase streams can include at least one hydrocarbon, such as methane or a hydrocarbon containing at least one saturated carbon-carbon bond, and at least one additional component, such as CO2 or N2. The selectivity of the adsorbent is improved by selectivating the adsorbent with one or more barrier compounds. The presence of the barrier compounds is believed to alter the relative ability of potential adsorbates to enter into and/or move within the pores of the adsorbent.Type: ApplicationFiled: November 8, 2013Publication date: June 12, 2014Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Harry W. Deckman, Peter I. Ravikovitch, Preeti Kamakoti, Chris Yoon
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Publication number: 20140157986Abstract: Methods are provided for forming zeolite crystals suitable for gas phase separations with transport characteristics that are stable over time. The zeolitic materials and/or corresponding methods of synthesis or treatment described herein provide for improved stability in the early stages of process operation for some types of gas phase separations. The methods allow for synthesis of DDR type zeolites that have reduced contents of alkali metal impurities. The synthetic methods for reducing the non-framework alkali metal atom or cation impurity content appear to have little or no impact on the DDR crystal structure and morphology.Type: ApplicationFiled: November 8, 2013Publication date: June 12, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Peter I. Ravikovitch, Barbara Carstensen, Charanjit S. Paur, Ivy D. Johnson, Harry W. Deckman
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Publication number: 20140157987Abstract: To provide an Fe(II)-substituted beta type zeolite which has been ion-exchanged with Fe(II) ions and can effectively adsorb and remove nitrogen monoxide or hydrocarbon contained in gas to be cleaned, even if oxygen is present in the gas at a high concentration or the temperature of the gas is low. In the Fe(II)-substituted beta type zeolite, a ratio of SiO2/Al2O3 is preferably 10 to 18, a BET specific surface area is preferably 400 m2/g to 700 m2/g, a micropore specific surface area is preferably 290 m2/g to 500 m2/g, and a micropore volume is preferably 0.15 cm3/g to 0.25 cm3/g. The amount of Fe(II) supported is preferably 0.01% by mass to 6.5% by mass based on the Fe(II)-substituted beta type zeolite.Type: ApplicationFiled: January 17, 2012Publication date: June 12, 2014Applicants: THE UNIVERSITY OF TOKYO, NIPPON CHEMICAL INDUSTRIAL CO., LTD.Inventors: Masaru Ogura, Keiji Itabashi, Tatsuya Okubo, Shanmugam Palani Elangovan
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Patent number: 8715395Abstract: Fluorinated metal-organic frameworks (“FMOFs”) are capable of adsorbing and desorbing hydrocarbons, namely, C6-C8 hydrocarbon oil components (n-hexane, cyclohexane, benzene and toluene). FMOFs can be arranged in a variety of configurations and have internal hollow channels and cavities. In FMOFs, hydrogen atoms have been substituted completely or partially with fluorine atoms or fluorinated groups in each linking organic ligand. These FMOFs can adsorb C6-C8 hydrocarbons, up to 500 kg/m3 as demonstrated for toluene, through a combination of superhydrophobicity and capillary action. No water adsorption was detectable even under extreme conditions including moist air near 100% relative humidity and immersion in water for multiple weeks, demonstrating far superior water resistance to BPL carbon and zeolites. These materials are stable and can be readily recycled by simple desorption many times.Type: GrantFiled: October 7, 2011Date of Patent: May 6, 2014Assignee: University of North TexasInventors: Mohammad A. Omary, Chi Yang
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Patent number: 8715396Abstract: A method for providing superadsorption of polar organic compounds using a material system is provided. The method can comprise enhancing adsorption by means of using high surface area and mass transfer rates and decreased reactivity at surface sites attractive to the polar compounds; and employing consequence management by maintaining a high rate of adsorptivity combined with high fidelity and accuracy of the material system. A modified superadsorbent material for air sampling applications comprising a superadsorbent material treated with a solution, thereby forming a treated superadsorbent material, wherein the treated superadsorbent material is substantially hydrophobic and is capable of adsorbing polar compounds.Type: GrantFiled: August 24, 2012Date of Patent: May 6, 2014Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Tadd C. Kippeny, Christopher S. Badorrek, Michael J. Bowers, II, Christopher L. Rector
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Patent number: 8685146Abstract: Processes and apparatuses are provided for preparing liquified natural gas from a natural gas feed that comprises C5 to C7 hydrocarbons and C8 or greater hydrocarbons. An exemplary process includes effecting the preferential adsorption of the C8 or greater hydrocarbons from the natural gas feed over adsorption of hydrocarbons having less than 8 carbon atoms to provide a C8-depleted natural gas stream. The process continues with effecting the preferential adsorption of the C5 to C7 hydrocarbons from the C8-depleted natural gas stream over adsorption of hydrocarbons having less than 5 carbon atoms to form a C5 to C8-depleted natural gas stream. The C5 to C7 hydrocarbons are preferentially adsorbed with higher selectivity and capacity than adsorption of the C5 to C7 hydrocarbons during preferentially adsorbing the C8 or greater hydrocarbons. The C5 to C8-depleted natural gas stream is then liquified.Type: GrantFiled: May 1, 2012Date of Patent: April 1, 2014Assignee: UOP LLCInventors: Lubo Zhou, Shain-Jer Doong, Bradley P. Russell, Henry Rastelli
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Publication number: 20140083293Abstract: Adsorber for adsorbing a fluid, comprising a cylinder with at least two parallel-passage contactors disposed in series in the direction of flow of the fluid to be adsorbed, and characterised in that each contactor comprises an internal insulation.Type: ApplicationFiled: April 20, 2012Publication date: March 27, 2014Applicant: l' Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges ClaudeInventor: Benoit Davidian
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Publication number: 20140060326Abstract: The invention relates to an increased efficiency high-capacity pressure and/or temperature swing adsorption process comprising: contacting a feedstream at a rate of more than 75 MSCFD with an adsorbent material under conditions sufficient for the adsorbent material to selectively adsorb at least one of the component gases in the feedstream, so as to form a first effluent; and selectively desorbing the adsorbed gas from the adsorption material, so as to form a second effluent The adsorption module can contain rotary valves both on the feed end and on the product end and a rotational member defining a central rotational axis, with the adsorption bed(s) oriented circumferentially thereto. The adsorption bed walls can be angled, the feed end cross-sectional area of the adsorption bed(s) can be larger than the product end, and/or the feed end rotary valve diameter of the module(s) can be larger than the product end.Type: ApplicationFiled: September 4, 2012Publication date: March 6, 2014Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventor: NARASIMHAN SUNDARAM
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Patent number: 8663375Abstract: An oil suppressing structure in an air drying device for removing oil which rises in an interior of the air drying device used in a vehicle compressed air brake system includes an outer case 21, a drying case 22 in an interior of the outer case 21, a base plate 23 fixed to a lower end portion 21a of the outer case 21, and an outer cover 24 fixed to a lower end portion 21a of the base plate 23. The drying case 22 has a large-diameter long cylindrical body portion 22A and a small-diameter long cylindrical body portion 22B. A particulate desiccating agent 25 is filled in an interior of the large-diameter cylindrical body portion 22A. An oil adsorbing material 27 is inserted in a space S3 between an inner wall of the outer case 21 and the small-diameter long cylindrical body portion 22B of the drying case 22.Type: GrantFiled: January 14, 2010Date of Patent: March 4, 2014Assignee: Nabtesco Automotive CorporationInventors: Ichiro Minato, Hiroyuki Murakami, Hiroki Hasebe, Takeo Shimomura, Takuya Sugio
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Publication number: 20140053730Abstract: A system and process for removing hydrocarbons from a gas process feed stream is presented. The treatment process may be, but is not limited to, glycol dehydration, amine sweetening, and MEG reclamation. As an example, a hydrocarbon removal bed containing a solid adsorbent material adsorbs the hydrocarbons in a rich MEG feed stream as it passes through the hydrocarbon removal bed. After the hydrocarbons have been removed, the feed stream flows through a flash separator and a distillation column to reclaim MEG. Alternatively, the hydrocarbon removal bed may be used after the MEG reclamation process to remove hydrocarbons in the distilled water from the distillation column. Spent solid adsorbent material may be regenerated in place.Type: ApplicationFiled: August 24, 2012Publication date: February 27, 2014Inventors: Daniel W. Phelps, Luis Eduardo Caires Fernandez
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Patent number: 8658120Abstract: Disclosed is a non-thermofusible phenol resin powder having an average particle diameter of not more than 20 ?m and a single particle ratio of not less than 0.7. This non-thermofusible phenol resin powder preferably has a chlorine content of not more than 500 ppm. This non-thermofusible phenol resin powder is useful as an organic filler for sealing materials for semiconductors and adhesives for semiconductors. The non-thermofusible phenol resin powder is also useful as a precursor of functional carbon materials such as a molecular sieve carbon and a carbon electrode material.Type: GrantFiled: February 2, 2012Date of Patent: February 25, 2014Assignee: Air Water Inc.Inventors: Naoto Yoshinaga, Satoshi Ibaraki, Yoshinobu Kodani, Takaomi Ikeda
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Patent number: 8658849Abstract: The present invention relates to a process for the separation of at least one unbranched C4-C2O hydrocarbon from a fluid mixture containing the unbranched hydrocarbon and at least one branched isomer of the unbranched hydrocarbon, which comprises the step of—contacting the fluid mixture with an adsorbent comprising a porous metal organic framework material, which material comprises at least one at least bidentate organic compound coordinately bound to at least one metal ion, to get the unbranched hydrocarbon adsorbed, wherein the at least one at least bidentate organic compound is a monocyclic, bicyclic or polycyclic ring system which is derived from at least one heterocycle selected from the group consisting of pyrrole, alpha-pyridone and gamma-pyridone and has at least two ring nitrogens and is unsubstituted or bears one or more substituents selected independently from the group consisting of halogen, Ci-6-alkyl, phenyl, NH2, NH(d-6-alkyl), N(C1-6-alkyl)2, OH, Ophenyl and OCi-6-alkyl, where the substituentsType: GrantFiled: June 30, 2008Date of Patent: February 25, 2014Assignee: BASF SEInventors: Markus Schubert, Ulrich Mueller, Christoph Kiener, Ingo Richter, William Dolan, Frank Poplow
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Patent number: 8636829Abstract: The invention provides gas purification systems for the recovery and liquefaction of low boiling point organic and inorganic gases, such as methane, propane, CO2, NH3, and chlorofluorocarbons. Many such gases are in the effluent gas of industrial processes and the invention can increase the sustainability and economics of such industrial processes. In a preferred system of the invention, low boiling point gases are adsorbed with a heated activated carbon fiber material maintained at an adsorption temperature during an adsorption cycle. During a low boiling point desorption cycle the activated carbon fiber is heated to a desorption temperature to create a desorption gas stream with concentrated low boiling point gases. The desorption gas stream is actively compressed and/or cooled to condense and liquefy the low boiling point gases, which can then be collected, stored, re-used, sold, etc.Type: GrantFiled: March 14, 2013Date of Patent: January 28, 2014Assignee: The Board of Trustees of the University of IllinoisInventors: Mark J. Rood, K. James Hay, David Johnsen, Kaitlin Mallouk
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Patent number: 8636969Abstract: A method is provided for forming a zeolitic imidazolate framework composition using at least one reactant that is relatively insoluble in the reaction medium. Also provided herein is a material made according to the method, designated either as EMM-19 or as EMM-19*, and a method of using same to adsorb and/or separate gases, such as carbon dioxide.Type: GrantFiled: March 15, 2013Date of Patent: January 28, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Simon Christopher Weston, Mobae Afeworki, Zheng Ni, John Zengel, David Lawrence Stern
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Patent number: 8571419Abstract: In accordance with some embodiments of the present disclosure, a method for spectrally spacing carrier waves comprises determining a frequency offset between a first frequency of a first optical carrier wave and a second frequency of a second optical carrier wave. The method further comprises adjusting the second frequency of the second optical carrier wave according to the frequency offset. The method additionally comprises combining a first optical signal associated with the first carrier wave and a second optical signal associated with he second carrier wave into a multi-frequency signal.Type: GrantFiled: September 1, 2011Date of Patent: October 29, 2013Assignee: Fujitsu LimitedInventor: Martin Bouda
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Publication number: 20130274087Abstract: MOF (metal organic framework)-modified materials and methods of making and methods of using same. The MOFs are covalently bound to the materials. Examples of suitable materials include fibers and thin films. The MOF-modified materials can be made by forming MOFs in situ such that they are covalently bound to the materials. The MOF-modified materials can be used in methods where gases and/or toxic chemicals are absorbed.Type: ApplicationFiled: August 25, 2011Publication date: October 17, 2013Applicant: CORNELL UNIVERSITYInventors: Marcia da Silva Pinto, Cesar Augusto Sierra Avilla, Juan Paulo Hinestroza
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Publication number: 20130269524Abstract: The invention relates to an adsorbent zeolite-based material comprising for 100 mass % an amount different from zero of a zeolite selected from X zeolites or LSX zeolites; the balance up to 100 mass % consisting of an amount different from zero of a cation-exchanged zeolite, said cation-exchanged zeolite being selected from cation-exchanged X zeolites and cation-exchanged LSX zeolites.Type: ApplicationFiled: January 4, 2012Publication date: October 17, 2013Applicant: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Christian Monereau
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Publication number: 20130259792Abstract: A method is provided for forming a zeolitic imidazolate framework composition using at least one reactant that is relatively insoluble in the reaction medium. Also provided herein is a material made according to the method, designated either as EMM-19 or as EMM-19*, and a method of using same to adsorb and/or separate gases, such as carbon dioxide.Type: ApplicationFiled: March 15, 2013Publication date: October 3, 2013Applicant: ExxonMobil Research & Engineering CompanyInventors: Simon Christopher Weston, Mobae Afeworki, Zheng Ni, John Zengel, David Lawrence Stern
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Publication number: 20130255493Abstract: A fuel vapor removal method includes removing fuel vapor from ullage of a fuel tank of a vehicle, adsorbing the fuel vapor removed from the ullage onto adsorption media on the vehicle, and desorbing the fuel vapor from the adsorption media while on the vehicle. A fuel vapor removal method includes purging fuel vapor from ullage of a fuel tank using air added into the ullage, reducing a fuel-air ratio in the ullage using the air purging, and adsorbing the purged fuel vapor onto adsorption media. A fuel vapor removal system includes a fuel tank having ullage, an adsorption system including fuel vapor adsorption media fluidically connected to the ullage and to an ullage purging system, and a controller. The controller includes a flammability determination system and is configured to start fuel vapor removal by the purging system from the ullage onto the adsorption media before the ullage exhibits flammability.Type: ApplicationFiled: March 27, 2012Publication date: October 3, 2013Inventor: Alankar Gupta
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Patent number: 8540802Abstract: The disclosure relates generally to a gas-separation system for separating one or more components from a multi-component gas using Zeolitic imidazolate or imidazolate-derived framework.Type: GrantFiled: May 9, 2008Date of Patent: September 24, 2013Assignee: The Regents of the University of CaliforniaInventors: Omar M. Yaghi, Hideki Hayashi, Rahul Banerjee
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Patent number: 8535415Abstract: A process and system for recovering valuable by-products (e.g., hydrogen) from refinery gas streams. For hydrogen-only recovery, the invention comprises a partial condensation step to upgrade the refinery fuel gas to a minimum of 60% hydrogen, which is further purified in a pressure swing adsorption process. When configured to recover hydrogen, methane-rich gas and raw LPG (methane depleted gas containing C2 hydrocarbons and heavier), the invention comprises two partial condensation steps where the feed is cooled in the first step to allow separation of ethane and heavier hydrocarbons, and the resulting vapor is cooled to a lower temperature in a second step for hydrogen recovery.Type: GrantFiled: August 10, 2012Date of Patent: September 17, 2013Assignee: Praxair Technology, Inc.Inventors: Ramona Manuela Dragomir, Raymond Francis Drnevich, Dante Patrick Bonaquist
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Patent number: 8530717Abstract: A process for the industrial isolation of propene from a gas stream comprising at least propene and propane, which involves contacting of the gas stream with an adsorbent having a porous metal organic framework having at least one at least bidentate organic compound coordinated to at least one metal ion, with the adsorbent becoming laden with propane and the gas stream therefore having an increased proportion of propene, wherein the W least bidentate organic compound is an imidazolate which is unsubstituted or has one or more substituents selected independently from of halogen, C1-6-alkyl, phenyl, NH2, NH(C1-6-alkyl), N(C1-6-alkyl)2, OH, O-phenyl and O—C1-6-alkyl.Type: GrantFiled: July 17, 2009Date of Patent: September 10, 2013Assignee: BASF SEInventors: Markus Schubert, Ingo Richter, Ulrich Mueller, Frank Poplow, William Dolan, Christoph Kiener
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Patent number: 8512443Abstract: Hydrogen can be recovered in a refinery network using a combination of a cycling adsorber unit and a membrane separation unit. A membrane separation unit can be used to generate at least a portion of the purge hydrogen stream for the cycling adsorber unit. This can reduce the portion of the hydrogen product stream from the cycling adsorber unit required for regeneration of the adsorbent.Type: GrantFiled: January 25, 2011Date of Patent: August 20, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Narasimhan Sundaram, John W. Viets
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Patent number: 8507406Abstract: Disclosed herein are rod-packing robust microporous metal-organic frameworks having the repeat unit Zn4(OH)2(1,2,4-BTC)2, useful for applications such as selective gas storage, selective gas sorption and/or separation, selective sensing of chemicals, and catalysis.Type: GrantFiled: August 12, 2011Date of Patent: August 13, 2013Assignee: The Board of Regents of the University of Texas SystemInventors: Banglin Chen, Zhangjing Zhang
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Patent number: 8500862Abstract: A system is configured to remove volatile organic compounds from a container. The system includes an enclosed contactor vessel having a first inlet to receive vapor containing volatile organic compounds from the container and a second inlet. The second inlet receives a vapor capture medium from a source. A contactor facilitates entrainment of the volatile organic compounds with the vapor capture medium while a first outlet recirculates treated vapor back to the container to effect a closed loop.Type: GrantFiled: December 9, 2009Date of Patent: August 6, 2013Assignee: Nanovapor Fuels Group, Inc.Inventors: Elliott Moorhead, Bryant Hickman
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Patent number: 8500853Abstract: The invention provides gas purification methods and systems for the recovery and liquefaction of low boiling point organic and inorganic gases, such as methane, propane, CO2, NH3, and chlorofluorocarbons. Many such gases are in the effluent gas of industrial processes and the invention can increase the sustainability and economics of such industrial processes. In a preferred method of the invention, low boiling point gases are adsorbed with a heated activated carbon fiber material maintained at an adsorption temperature during an adsorption cycle. During a low boiling point desorption cycle the activated carbon fiber is heated to a desorption temperature to create a desorption gas stream with concentrated low boiling point gases. The desorption gas stream is actively compressed and/or cooled to condense and liquefy the low boiling point gases, which can then be collected, stored, re-used, sold, etc.Type: GrantFiled: June 30, 2010Date of Patent: August 6, 2013Assignee: The Board of Trustees of the University of IllinoisInventors: Mark J. Rood, K. James Hay, David Johnsen, Kaitlin Mallouk
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Patent number: 8480792Abstract: The disclosure provides zeolitic frameworks for gas separation, gas storage, catalysis and sensors. More particularly the disclosure provides zeolitic frameworks (ZIFs). The ZIF of the disclosure comprises any number of transition metals or a homogenous transition metal composition.Type: GrantFiled: July 16, 2008Date of Patent: July 9, 2013Assignee: The Regents of the University of CaliforniaInventors: Omar M. Yaghi, Hiroyasu Furukawa, Bo Wang
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Patent number: 8480789Abstract: The present disclosure provides a method for separating and purifying a landfill gas stream. In one embodiment, the method includes a step of collecting a crude landfill gas stream which includes at least methane, carbon dioxide, oxygen, and nitrogen gases. The method also includes a step of separating the crude landfill gas stream into at least an intermediate landfill gas stream and a first waste gas stream using a membrane separation unit, wherein the intermediate landfill gas stream is enriched in methane and depleted in carbon dioxide relative to the crude landfill gas stream. The method further includes a step of separating the intermediate landfill gas stream into at least a final landfill gas stream and a second waste gas stream using a pressure swing adsorption separation unit, wherein the final landfill gas stream is enriched in methane and depleted in carbon dioxide, oxygen, and nitrogen relative to the intermediate landfill gas stream.Type: GrantFiled: October 13, 2010Date of Patent: July 9, 2013Assignee: Manufactured Methane CorporationInventors: Cary V. Sorensen, Jeffrey R. Bailey
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Patent number: 8425659Abstract: A method of separating a target component from a chemical mixture comprising contacting a chemical mixture with a microporous coordination polymer. The microporous polymer is described by the formula: [M2(C8H2O6)] where M is a transition metal, rare earth metal, or other element from the groups consisting of IIA through VB.Type: GrantFiled: December 3, 2008Date of Patent: April 23, 2013Assignee: The Regents of The University of MichiganInventors: Adam J. Matzger, Antek G. Wong-Foy, Stephen Caskey
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Patent number: 8419829Abstract: A method and system for coal-to-liquids (CTL) conversion is provided. The system includes a coal gasifier configured to partially oxidize a coal fuel stream to generate a flow of synthesis gas (syngas), a Fischer-Tropsch (FT) reactor configured to receive the flow of syngas and to generate a stream of tail gas, and an absorber coupled in flow communication downstream of the FT reactor and configured to receive the stream of tail gas. The absorber is further configured to generate a first flow including carbon dioxide, C2 hydrocarbons, and higher boiling gas components (C3+) and a second flow including C1, carbon monoxide, hydrogen, and nitrogen. The system also includes a first membrane separator including a selective membrane configured to separate the second flow from the absorber generating a permeate flow of hydrogen and a non-permeate flow of combustion turbine fuel gas including methane and hydrogen.Type: GrantFiled: October 27, 2010Date of Patent: April 16, 2013Assignee: General Electric CompanyInventor: Paul Steven Wallace
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Publication number: 20130053585Abstract: Fe2(dobdc) has a metal-organic framework with a high density of coordinatively-unsaturated FeII centers lining the pore surface. It can be effectively used to separate O2 from N2 and in a number of additional separation applications based on selective, reversible electron transfer reactions. In addition to being an effective O2 separation material, it can be used for many other processes, including paraffin/olefin separation, nitric oxide/nitrous oxide separation, acetylene storage, and as an oxidation catalyst.Type: ApplicationFiled: August 24, 2012Publication date: February 28, 2013Applicant: The Regents of the University of CaliforniaInventors: Jeffrey R. LONG, Eric D. BLOCH, Leslie MURRAY
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Patent number: 8366806Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure having a Si/Al ratio of no more than 20. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.Type: GrantFiled: December 29, 2010Date of Patent: February 5, 2013Assignee: Taiyo Nippon Sanso CorporationInventors: Tatsuya Hidano, Morimitsu Nakamura, Masato Kawai
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Patent number: 8343261Abstract: The present invention relates to the use of a porous metal organic framework comprising at least a first organic compound and, if appropriate, a second organic compound, in which at least the first organic compound is at least partially coordinated in a bidentate fashion to at least one metal ion, where the at least one metal ion is Mg(II) and the first organic compound is derived from formic acid and the second organic compound is derived from acetic acid, for storing or isolating methane. Furthermore, the invention relates to a porous metal organic framework based on magnesium formate and acetate and also its preparation.Type: GrantFiled: March 17, 2009Date of Patent: January 1, 2013Assignee: BASF SEInventors: Emi Leung, Ulrich Mueller, Gerhard Cox, Hans Wolfgang Hoeffken
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Publication number: 20120312164Abstract: 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 R1, R2, R3, and R4 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 ? and less than 16.0 ?, and having 2 to 7 heteroatoms.Type: ApplicationFiled: February 24, 2011Publication date: December 13, 2012Applicant: Kuraray Co., LTD.Inventors: Yasutaka Inubushi, Chikako Ikeda, Koichi Kanehira
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Publication number: 20120285321Abstract: Rotary valves are disclosed, comprising a seal sheet affixed to a rotor. At least some area, namely a “rotor plate surface mating area” is provided, over which a seal sheet anchoring assembly can directly abut, along a planar portion, the rotor plate surface that is in contact with the seal sheet. This advantageously provides an area of direct contacting between the seal sheet anchoring assembly, or one of its components, and the rotor plate, with the abutting surfaces being defined by consistently rigid materials (e.g., metals such as stainless steel) that undergo substantially no deformation, compression, or softening over conditions of normal operation.Type: ApplicationFiled: May 10, 2011Publication date: November 15, 2012Applicant: UOP LLCInventor: STEPHEN JAY KOSKI
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Patent number: 8303930Abstract: The present invention relates to various processes for recovering high purity gaseous hydrogen and high purity gaseous carbon dioxide from the gas stream produced using steam hydrocarbon reforming, especially steam methane reforming, utilizing a H2 pressure swing adsorption unit followed by either a CO2 vacuum swing adsorption unit or a CO2 vacuum swing adsorption unit in combination with an additional CO2 pressure swing adsorption unit. By using an uncoupled H2 PSA and CO2 VSA unit it is possible to produce high purity H2 and high purity CO2. The present invention further relates to a process for optimizing the recovery of CO2 from waste gas streams produced during the hydrogen purification step of a steam hydrocarbon reforming/H2 pressure swing adsorption unit utilizing either a CO2 vacuum swing adsorption unit or a CO2 vacuum swing adsorption unit in combination with a CO2 pressure swing adsorption unit.Type: GrantFiled: September 30, 2009Date of Patent: November 6, 2012Assignees: American Air Liquide, Inc., Air Liquide Industrial U.S. LPInventors: Yudong Chen, Glenn Fair
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Patent number: 8298319Abstract: Disclosed are a pressure swing adsorption apparatus for hydrogen purification and a hydrogen purification method using the same. The pressure swing adsorption apparatus for hydrogen purification includes a plurality of adsorption columns connected with a feed supply pipe, a hydrogen storage tank for collecting purified hydrogen from the adsorption columns, and valves for opening or closing a plurality of pipes connected to the respective adsorption columns, and the adsorption columns are packed with adsorbent beds of active alumina or silica gel, activated carbon, zeolite 13X, zeolite 5A, and a carbon monoxide-selective adsorbent other than the zeolite 5A, in order to remove carbon dioxide, methane, and carbon monoxide from a hydrogen-containing gas mixture supplied through the feed supply pipe, and the content of carbon monoxide in the discharged hydrogen is minimized through sequential adsorption on the adsorbents in the adsorption columns.Type: GrantFiled: July 13, 2007Date of Patent: October 30, 2012Assignee: Korean Institute of Energy ResearchInventors: Soon Haeng Cho, Sodankoor Garadi Thirumaleshwara Bhat, Sang Sup Han, Jong Ho Park, Jong Nam Kim, Heon Jung
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Patent number: 8282709Abstract: ETS-10 type materials preferentially adsorb ethane and, if present, C3+ paraffins from mixtures comprising methane, ethane and optionally C3+ paraffins at pressures above 200 psia. A process in which ETS-10 type materials are used to separate ethane and C3+ paraffins from natural gas streams at over 200 psia is provided.Type: GrantFiled: June 29, 2010Date of Patent: October 9, 2012Assignee: The Governors of the University of AlbertaInventors: Steven Mitchell Kuznicki, Adolfo Maria Avila, Meng Shi, Vernon Lindsay Strom, Patricio S. Herrera
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Patent number: 8273153Abstract: The method allows liquefaction of a dry natural gas comprising water and heavy hydrocarbons containing more than five carbon atoms. The following stages are carried out: a) passing the dry natural gas through a water-adsorbent solid so as to obtain a water-depleted natural gas and a water-laden adsorbent solid, b) passing the water-depleted natural gas through a solid adsorbing heavy hydrocarbons comprising at least five carbon atoms so as to obtain a heavy hydrocarbon-depleted natural gas and a heavy hydrocarbon-laden adsorbent solid, c) liquefying the heavy hydrocarbon-depleted natural gas at a pressure above 40 bar abs so as to obtain a liquid natural gas under pressure, d) expanding the liquid natural gas under pressure obtained in stage c) to atmospheric pressure so as to obtain a liquid natural gas and a gas fraction.Type: GrantFiled: September 23, 2008Date of Patent: September 25, 2012Assignee: IFP Energies nouvellesInventors: Michel Thomas, Beatrice Fischer, Gilles Ferschneider
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Patent number: 8268047Abstract: The present invention relates generally to processes and systems for recovering helium from low helium-containing feed gases (i.e., containing less than about 10 volume % helium and more typically, less than about 5% helium by volume). The present invention more particularly relates to processes and systems for recovering helium from low helium-containing feed gases using temperature swing adsorption (TSA) systems and multiple (e.g. two) stage vacuum pressure swing adsorption (VPSA) systems. In preferred embodiments of the invention, the first stage VPSA system is configured to provide regeneration gas for the TSA system, and/or the VPSA second stage tail gas is recycled to the first stage VPSA system.Type: GrantFiled: April 28, 2010Date of Patent: September 18, 2012Assignee: Praxair Technology, Inc.Inventor: Mohamed Safdar Allie
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Patent number: 8268046Abstract: Methods of purifying hydrogen-containing materials are described. The methods may include the steps of providing a purifier material comprising silica. The silica may be heated at temperature of about 100° C. or more in a dry atmosphere to form activated silica. The activated silica may be contacted with a starting hydrogen-containing material, where the activated silica reduces a concentration of one or more impurity from the starting hydrogen-containing material to form the purified hydrogen-containing material, and where the activated silica does not decompose the purified hydrogen-containing material.Type: GrantFiled: May 14, 2009Date of Patent: September 18, 2012Assignee: Matheson Tri-GasInventors: Tadaharu Watanabe, Mark Raynor, Ade Lau, Hirotaka Mangyo
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Patent number: 8262772Abstract: A process and system for recovering valuable by-products (e.g., hydrogen) from refinery gas streams. For hydrogen-only recovery, the invention comprises a partial condensation step to upgrade the refinery fuel gas to a minimum of 60% hydrogen, which is further purified in a pressure swing adsorption process. When configured to recover hydrogen, methane-rich gas and raw LPG (methane depleted gas containing C2 hydrocarbons and heavier), the invention comprises two partial condensation steps where the feed is cooled in the first step to allow separation of ethane and heavier hydrocarbons, and the resulting vapor is cooled to a lower temperature in a second step for hydrogen recovery.Type: GrantFiled: December 5, 2007Date of Patent: September 11, 2012Assignee: Praxair Technology, Inc.Inventors: Ramona Manuela Dragomir, Raymond Francis Drnevich, Dante Patrick Bonaquist
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Patent number: 8262774Abstract: Disclosed is a process for forming a CO2 capture element comprises providing a mixture of a monomer or monomer blend or a polymer binder, a miscible liquid carrier for the binder and a CO2 sorbent or getter in particle form, forming the mixture into a wet film or membrane, evaporating the liquid carrier to form a film or membrane, and treating the wet film or membrane to form pores in the body of the film or membrane. Also disclosed is a process of forming a CO2 capture element which comprises the steps of applying a mixture including a sorbent material and a polymer to an underlying material; polymerizing the mixture in place on the material; and aminating the polymer-coated material.Type: GrantFiled: November 20, 2008Date of Patent: September 11, 2012Assignee: Kilimanjaro Energy, Inc.Inventor: Ping Liu
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Patent number: 8262771Abstract: A flammable gas concentration device comprises an adsorption tower filled by an adsorbent for adsorbing a flammable gas. Raw gas containing air and a flammable gas is fed to the adsorption tower via a feeding path and an exhaust gas in the raw gas which has not been adsorbed to the adsorbent is discharged to an outside of the adsorption tower via a discharge path. Pressure in the adsorption tower is reduced lower than an atmospheric pressure, and the flammable gas adsorbed by the adsorbent is desorbed and collected through a collection path. A flammable gas adsorption step of feeding the raw gas to the adsorption tower and discharging the exhaust gas from the adsorption tower, and a flammable gas desorption step of collecting the desorbed flammable gas are sequentially executed.Type: GrantFiled: October 11, 2007Date of Patent: September 11, 2012Assignee: Osaka Gas Co., Ltd.Inventors: Kenji Seki, Etsuo Shito, Katsuhiko Hirao
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Patent number: 8257470Abstract: Disclosed is a harmful material treatment system for recovering the energy and removing the harmful material in the process of treating the gas containing the harmful material generated in the multiplex utilization facility, in the display mall, in diverse manufacturing processes and in the vehicle painting process, more particularly, to a harmful material treatment system which can recover the energy contained in the air conditioning facility or in the exhaust gas of the process with an efficiency of more than 90%, for exhausting the inside air to the outside so as to treat the contaminating material such as odor and volatile organic chemicals, and to remove the harmful material with a removal efficiency of more than 90% by adsorbing and concentrating the harmful material with a rotary-type adsorbent.Type: GrantFiled: March 24, 2006Date of Patent: September 4, 2012Assignee: Enbion Inc.Inventors: Hyun Jae Lee, Myeong Soo Yoon, Min Su Shin, Won Moon Jeong, Jeong Ki Min
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Patent number: 8241400Abstract: The present invention provides a process for recovering gaseous hydrogen and gaseous carbon dioxide from a mixture of hydrocarbons by utilizing a system that includes a reformer unit, an optional water gas shift reactor, and a pressure swing adsorption unit in conjunction with a carbon dioxide purification unit such as a cryogenic purification unit or a catalytic oxidizer. In this process, purified CO2 from the CO2 purification unit is used as a co-feed/co-purge in the pressure swing adsorption unit in order to produce a CO2 tail gas that includes a higher concentration of CO2.Type: GrantFiled: November 24, 2009Date of Patent: August 14, 2012Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Bhadra S. Grover
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Publication number: 20120167761Abstract: A method comprising (i) providing a metal organic framework formed by AlIII ions to which fumarate ions are coordinated to produce a porous framework structure, (ii) bringing a substance into contact with the metal organic framework such that the substance is uptaken by the porous metal organic framework to provide storage of or controlled release of, the substance.Type: ApplicationFiled: January 10, 2012Publication date: July 5, 2012Applicant: BASF SEInventors: Christoph Kiener, Ulrich Müller, Markus Schubert
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Patent number: 8192709Abstract: The present invention relates to the selective separation of methane (“CH4”) from higher carbon number hydrocarbons (“HHC”s) in streams containing both methane and higher carbon number hydrocarbons (e.g. ethylene, ethane, propylene, propane, etc.) utilizing a zeolitic imidazolate framework (“ZIF”) material. Preferably, the stream to be separated is fed to the present process in a substantially gaseous phase. In preferred embodiments, the current invention is utilized in a process to separate methane from higher carbon number hydrocarbons in natural gas streams.Type: GrantFiled: January 30, 2009Date of Patent: June 5, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Sebastian C. Reyes, Jose G. Santiesteban, legal representative, Zheng Ni, Charanjit S. Paur, Pavel Kortunov, John Zengel, Harry W. Deckman
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Publication number: 20120118153Abstract: Fluorinated metal-organic frameworks (“FMOFs”) are capable of adsorbing and desorbing hydrocarbons, namely, C6-C8 hydrocarbon oil components (n-hexane, cyclohexane, benzene and toluene). FMOFs can be arranged in a variety of configurations and have internal hollow channels and cavities. In FMOFs, hydrogen atoms have been substituted completely or partially with fluorine atoms or fluorinated groups in each linking organic ligand. These FMOFs can adsorb C6-C8 hydrocarbons, up to 500 kg/m3 as demonstrated for toluene, through a combination of superhydrophobicity and capillary action. No water adsorption was detectable even under extreme conditions including moist air near 100% relative humidity and immersion in water for multiple weeks, demonstrating far superior water resistance to BPL carbon and zeolites. These materials are stable and can be readily recycled by simple desorption many times.Type: ApplicationFiled: October 7, 2011Publication date: May 17, 2012Applicant: The University of North TexasInventors: Mohammad A. Omary, Chi Yang
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Patent number: 8178065Abstract: A photocatalyst is provided that comprises activated carbon produced from date pits, impregnated with TiO2. The activated carbon can have a porous surface that can attract and trap pollutants flowing in air or water. The photocatalyst can be made by a method that includes preparing activated carbon by calcining date pits to form a precursor material, and then impregnating the precursor material with titanium dioxide.Type: GrantFiled: March 16, 2010Date of Patent: May 15, 2012Assignee: The National Titanium Dioxide Co. Ltd. (CRISTAL)Inventors: Yousef Saleh Al-Zeghayer, Sami M. Bashir, Ahmed V. Yaser, Hassan M. El Dekki, Waheed A. Al-Masry, Fadi M. Trabzuni