Plural Layers (e.g., Laminated Barrier, Etc.) Patents (Class 96/11)
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Patent number: 8545607Abstract: A pleatable, high efficiency composite gas filtration media is provided. The media includes an essentially boron free chopped strand glass backer layer and media layer comprising a synthetic material. The composite media exhibits excellent pleatability, low boron out gassing, and low organic out gassing, with filtration performance comparable to existing commercial membrane composites.Type: GrantFiled: August 17, 2010Date of Patent: October 1, 2013Assignee: Lydall, Inc.Inventors: William H. Cambo, Ming T. Huang
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Patent number: 8540801Abstract: The present disclosure describes a method for forming microporous membranes. More specifically, vapor induced phase separation techniques are used for forming multizone microporous membranes having improved material throughput.Type: GrantFiled: October 22, 2009Date of Patent: September 24, 2013Assignee: 3M Innovative Properties CompanyInventors: Ilyess H. Romdhane, Mikhail S. Mezhirov
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Patent number: 8540800Abstract: The present invention discloses microporous UZM-5 zeolite membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The small-pore microporous UZM-5 zeolite membrane is prepared by two different methods, including in-situ crystallization of one or more layers of UZM-5 zeolite crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of UZM-5 zeolite crystals on a seed layer of UZM-5 zeolite crystals supported on a porous membrane support. The membranes in the form of disks, tubes, or hollow fibers have superior thermal and chemical stability, good erosion resistance, high CO2 plasticization resistance, and significantly improved selectivity over polymer membranes for gas, vapor, and liquid separations.Type: GrantFiled: March 21, 2011Date of Patent: September 24, 2013Assignee: UOP LLCInventors: Chunqing Liu, Jaime G. Moscoso, Stephen T. Wilson
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Patent number: 8540806Abstract: There is provided herein a dryer polymer substance including a hetero-phase polymer composition including two or more polymers wherein at least one of the two or more polymers include sulfonic groups, wherein the substance is adapted to pervaporate a fluid. The fluid may include water, water vapor or both. There is also provided herein a process for the preparation of a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both) the process includes mixing two or more polymers, wherein at least one of the two or more polymers may include groups which are adapted to be sulfonated, to produce a hetero-phase polymer composition and processing the polymer blend into a desired form.Type: GrantFiled: January 2, 2013Date of Patent: September 24, 2013Assignee: Oridion Medical (1987) Ltd.Inventors: Amos Ophir, Eyal Cohen, David Dishon, Joshua Lewis Colman
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Patent number: 8535412Abstract: The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.Type: GrantFiled: July 15, 2010Date of Patent: September 17, 2013Assignee: RIC Investments, LLCInventor: Joseph T. Dolensky
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Patent number: 8518151Abstract: A dense hydrogen-permeable layer, such as palladium or palladium alloy, is deposited on a porous hollow fiber. A porous hollow fiber is defined as having an inner diameter of approximately 30 microns to approximately 1500 microns and an outer diameter of approximately 100 microns to approximately 2000 microns. This allows an order-of-magnitude increase in the surface per volume ratio in a hydrogen separation or purification module, or a membrane reformer or reactor.Type: GrantFiled: March 22, 2011Date of Patent: August 27, 2013Assignee: L'Air Liquide Societe Anonyme pour l'Etude el l'Exploitation des Procedes Georges ClaudeInventors: Pascal Tessier, Edgar S. Sanders, Jr., Pascal J. Tromeur
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Patent number: 8518150Abstract: Methods for the purification of steam, systems for purifying steam, methods for measuring and/or controlling steam flow rates, and uses for purified steam are provide. Also provided are substantially gas-impermeable membranes, such as perfluorinated ionomers (e.g., perfluoroethylene-sulfonic-acid/tetrafluoroethylene membranes), having a high ratio of water vapor permeation relative to gas permeation through the membrane. Also provided are methods of operation of such membranes at relatively high operating temperatures for the purification of steam and for operation of such membranes at relatively low temperature and sub-atmospheric pressures for the purification of steam. In a preferred embodiment, the system 400 for purifying steam comprises heater 404 for creating a source of a steam feed, and a purification device 416 for housing a substantially gas-impermeable membrane 424. In the operation of system 400, water, such as deionized water, is added to vessel 402 to provide a source of the steam feed.Type: GrantFiled: August 28, 2012Date of Patent: August 27, 2013Assignee: RasircInventors: Jeffrey J. Spiegelman, Richard D. Blethen
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Patent number: 8512442Abstract: A composite membrane for separating a gas from a mixed gas stream includes a fibrous non-woven substrate including consolidated synthetic thermoplastic fibers, and coextensively disposed on a surface of the fibrous non-woven substrate a continuous polysulfide rubber film adhered thereto. A method of separating a gas component from a mixed gas stream includes 1) contacting a surface of the above-described composite membrane with the mixed gas stream under conditions such that a product gas enriched in the gas component diffuses through the composite membrane; and 2) collecting the product gas.Type: GrantFiled: May 22, 2012Date of Patent: August 20, 2013Inventor: Aaron Oken
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Patent number: 8512441Abstract: A process for recovering a gaseous component comprising at least one fluorine-containing compound from a mixture of gaseous compounds. The process includes, in a separation zone (12), bringing a mixture of gaseous constituents, including at least one fluorine-containing constituent, into contact with a gas permeable separating medium (16) comprising a polymeric compound, so that a first gaseous component comprising at least one fluorine-containing constituent is separated from a second gaseous component comprising the balance of the gaseous constituents. The first gaseous component is withdrawn from the separation zone as a permeate (34) or a retentate, while the second gaseous component is withdrawn from the separation zone as the retentate (26), when the first gaseous component is withdrawn as the permeate, and as the permeate, when the first gaseous component is withdrawn as the retentate.Type: GrantFiled: July 6, 2009Date of Patent: August 20, 2013Assignees: The South African Nuclear Energy Corporation Limited, North-West UniversityInventors: Johannes Theodorus Nel, Izak Jacobus Van Der Walt, Alfred Teo Grunenberg, Odolphus Simon Leo Bruinsma, Marco Le Roux, Henning Manfred Krieg, Sanette Marx
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Patent number: 8500871Abstract: A water vapor permeable membrane is provided comprising a dense layer and a support layer that are adjacent to each other, wherein the dense layer contains voids with a void length of 0.1 ?m or less and the dense layer has a thickness of 0.1 ?m or more and 2 ?m or less while in the support layer, void (a), i.e. the void with the largest length in the 2 ?m thick region measured from the boundary between the dense layer and the support layer into the support layer, has a length of 0.3 ?m or more and void (b), i.e. the void with the largest length in the region ranging between 2 ?m and 4 ?m measured from the boundary into the support layer, has a length of 0.5 ?m or more, the length of the void (b) being larger than that of the void (a). A water vapor permeable membrane having both a high water vapor permeability and a low air leakage is provided.Type: GrantFiled: August 21, 2009Date of Patent: August 6, 2013Assignee: Toray Industries, Inc.Inventors: Masahiro Osabe, Kazumi Tanaka, Hiroyuki Sugaya
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Patent number: 8501668Abstract: The invention provides a porous nanoscale membrane. In one embodiment, the membrane can be used as a filtration device to screen agents that disrupt or prevent molecular interactions. In one embodiment, the membrane allows for screening agents that disrupt or prevent molecular interactions using a small sample volume with efficient high-throughput screening applications.Type: GrantFiled: September 9, 2010Date of Patent: August 6, 2013Assignee: University of RochesterInventors: James L. McGrath, Harold C. Smith
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Publication number: 20130192460Abstract: Technologies are generally described for perforated graphene monolayers and membranes containing perforated graphene monolayers. An example membrane may include a graphene monolayer having a plurality of discrete pores that may be chemically perforated into the graphene monolayer. The discrete pores may be of substantially uniform pore size. The pore size may be characterized by one or more carbon vacancy defects in the graphene monolayer. The graphene monolayer may have substantially uniform pore sizes throughout. In some examples, the membrane may include a permeable substrate that contacts the graphene monolayer and which may support the graphene monolayer. Such perforated graphene monolayers, and membranes comprising such perforated graphene monolayers may exhibit improved properties compared to conventional polymeric membranes for gas separations, e.g., greater selectivity, greater gas permeation rates, or the like.Type: ApplicationFiled: January 26, 2012Publication date: August 1, 2013Applicant: Empire Technology Development, LLCInventors: Seth A. Miller, Gary L. Duerksen
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Publication number: 20130192461Abstract: Technologies are generally described for a membrane that may incorporate a graphene layer perforated by a plurality of nanoscale pores. The membrane may also include a gas sorbent that may be configured to contact a surface of the graphene layer. The gas sorbent may be configured to direct at least one gas adsorbed at the gas sorbent into the nanoscale pores. The nanoscale pores may have a diameter that selectively facilitates passage of a first gas compared to a second gas to separate the first gas from a fluid mixture of the two gases. The gas sorbent may increase the surface concentration of the first gas at the graphene layer. Such membranes may exhibit improved properties compared to conventional graphene and polymeric membranes for gas separations, e.g., greater selectivity, greater gas permeation rates, or the like.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: Empire Technology Development, LLCInventors: Seth A. Miller, Gary L. Duerksen
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Patent number: 8496736Abstract: The present invention relates to a hydrogen supply device which supplies hydrogen by selectively permitting permeation of hydrogen contained in a hydrogen containing gas (G1). This device includes: a first metal layer (2) which dissociates hydrogen molecules into hydrogen ions by a catalytic reaction and has hydrogen permeability; a second metal layer (3) which creates hydrogen molecules by bonding hydrogen ions to each other using electrons and has hydrogen permeability; a hydrogen permeation layer (1) which is interposed between the first metal layer (2) and the second metal layer (3) and permits permeation of the hydrogen ions from the first metal layer (2) to the second metal layer (3) by the application of a voltage; and a voltage application (7) for applying the voltage to the hydrogen permeation layer (1) by setting the first metal layer (2) as an anode and setting the second metal layer (3) as a cathode.Type: GrantFiled: February 18, 2009Date of Patent: July 30, 2013Assignees: IHI Corporation, Tamagawa K-12 & UniversityInventors: Junya Nishino, Katsumi Takahashi, Hiroyuki Obara
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Publication number: 20130186269Abstract: A vapor particle separator including a temperature controlled chamber for desorbing vapors from the particulates of an exhaust gas and a separation chamber including a micro porous membrane. The micro porous membrane provides an interface between at least one particle passageway and at least one vapor passageway through the separation chamber. The particle passageway extends from an entrance to the separation chamber to a particle exit from the separation chamber. The vapor passageway extends from the micro-porous membrane to a vapor exit from the separation chamber that is separate from the particle exit from the separation chamber.Type: ApplicationFiled: June 14, 2012Publication date: July 25, 2013Applicant: UT-BATTELLE, LLCInventors: Meng-Dawn Cheng, Steve L. Allman
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Patent number: 8486184Abstract: A composite membrane for selective gas separation, comprises a layer system having a continuously porous, mechanically stable carrier layer, which has an average pore size in the ?m range, further having at least one continuously porous intermediate layer, which is disposed on the carrier layer and has an average pore size in the range of 2 to 200 nm, and further having a gastight functional layer, which is disposed on the intermediate layer and is made of a mixed-conductive material having a maximum layer thickness of 1 ?m. The carrier layer comprises a structural ceramic, a metal, or a cermet and has a layer thickness of no more than 1 mm. The intermediate layer is present with a total layer thickness of no more than 100 ?m and has an average pore size in the range of 10 to 100 nm. The functional layer comprises a perovskite, a fluorite, or a material having a K2NiF4 structure, such as La1-xSrxCo1-yFeyO3-8 (LSCF).Type: GrantFiled: February 21, 2009Date of Patent: July 16, 2013Assignee: Forschungszentrum Juelich GmbHInventors: Stefan Baumann, Jose Manuel Serra Alfaro, Wilhelm Albert Meulenberg, Hans-Peter Buchkremer, Detlev Stoever
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Patent number: 8486179Abstract: The invention concerns carbon molecular sieve membranes (“CMS membranes”), and more particularly the use of such membranes in gas separation. In particular, the present disclosure concerns an advantageous method for producing CMS membranes with desired selectivity and permeability properties. By controlling and selecting the oxygen concentration in the pyrolysis atmosphere used to produce CMS membranes, membrane selectivity and permeability can be adjusted. Additionally, oxygen concentration can be used in conjunction with pyrolysis temperature to further produce tuned or optimized CMS membranes.Type: GrantFiled: June 17, 2010Date of Patent: July 16, 2013Assignees: Georgia Tech Research Corporation, Shell Oil CompanyInventors: Mayumi Kiyono, Paul Jason Williams, William John Koros
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Patent number: 8486178Abstract: A membrane cartridge is manufactured by repeatedly folding and joining two strips of membrane to form a cross-pleated cartridge with a stack of openings or fluid passageways configured in an alternating cross-flow arrangement. The cartridge can be modified for other flow configurations including co-flow and counter-flow arrangements. Methods for manufacturing such cross-pleated membrane cartridges, as well as apparatus used in the manufacturing process are described. Cross-pleated membrane cartridges comprising water-permeable membranes can be used in a variety of applications, including in heat and water vapor exchangers. In particular they can be incorporated into energy recovery ventilators (ERVs) for exchanging heat and water vapor between air streams being directed into and out of buildings.Type: GrantFiled: March 12, 2012Date of Patent: July 16, 2013Assignee: DPoint Technologies Inc.Inventors: Greg Montie, James Franklin Dean, Curtis Mullen, Robert Hill
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Patent number: 8481110Abstract: Methods of making inorganic membranes, for example, methods of making gamma-alumina inorganic membranes which can be useful for, for example, molecular level gas separations and/or liquid filtration are described.Type: GrantFiled: February 20, 2009Date of Patent: July 9, 2013Assignee: Corning IncorporatedInventor: Yunfeng Gu
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Patent number: 8479487Abstract: A hybrid multichannel porous structure for processing between two fluid streams of different compositions includes a housing and one or more structures disposed within the cavity of the housing in a shell and tube configuration. Each structure includes a body made of a porous, inorganic material and a plurality of channels for processing an optional sweep stream. Each channel is coated with a membrane layer. A feed stream introduced into the housing is in direct contact with the structures such that a gas selectively permeates through the body and into the channels. The gas combines with the sweep stream to form a permeate that exits from each channel. The remaining feed stream forms a retentate that exits from the housing. The feed stream may consist of syngas containing hydrogen gas and the sweep stream may contain nitrogen gas. A power plant that incorporates the hybrid structure is disclosed.Type: GrantFiled: August 10, 2009Date of Patent: July 9, 2013Assignee: General Electric CompanyInventors: Anthony Yu-Chung Ku, Kevin Paul McEvoy, Patrick Daniel Willson, Parag Parkash Kulkarni, Roger Allen Shisler, Anoop Muralidhara Kurup
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Publication number: 20130167723Abstract: A method for modifying a porous substrate, including: coating at least a metal hydroxide layer on a porous substrate; and calcining the porous substrate with the metal hydroxide layer coated thereon to transform the metal hydroxide layer into a continuous metal oxide layer, forming a modified porous substrate. The disclosure also provides a modified porous substrate.Type: ApplicationFiled: December 26, 2012Publication date: July 4, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventor: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
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Publication number: 20130160650Abstract: A CO2-facilitated transport membrane of excellent carbon dioxide permeability and CO2/H2 selectivity, which can be applied to a CO2 permeable membrane reactor, is stably provided. The CO2-facilitated transport membrane is formed such that a gel layer 1 obtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane 2. More preferably, a gel layer supported by a hydrophilic porous membrane 2 is coated with hydrophilic porous membranes 3 and 4.Type: ApplicationFiled: January 16, 2013Publication date: June 27, 2013Applicant: RENAISSANCE ENERGY RESEARCH CORPORATIONInventor: RENAISSANCE ENERGY RESEARCH CORPORATION
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Publication number: 20130152784Abstract: A method of making a composite gas separation module by providing a porous support material having deposited thereon a metal membrane layer, by imposing upon the surface of the metal membrane layer certain surface characteristics including an abrasion pattern and a relatively high surface roughness that provides for surface activation that enhances the placement thereon of a subsequent metal membrane layer without the use of a chemical activating solution. The composite gas separation module is useful in the separation of hydrogen from hydrogen-containing gas streams.Type: ApplicationFiled: December 18, 2012Publication date: June 20, 2013Applicant: SHELL OIL COMPANYInventor: Shell Oil Company
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Publication number: 20130152785Abstract: A method of preparing a palladium-silver alloy gas separation membrane system, wherein the surface of the palladium layer or a silver layer is activated by a non-chemical activation method involving abrasion to a controlled surface roughness and abrasion pattern, thereby permitting the plating or deposition of an overlayer of silver on the palladium layer, silver on a silver layer, or palladium on a silver layer. The palladium and silver layers are preferably supported on a porous metal support to which an intermetallic diffusion barrier has been applied.Type: ApplicationFiled: December 18, 2012Publication date: June 20, 2013Applicant: SHELL OIL COMPANYInventor: Shell Oil Company
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Patent number: 8460432Abstract: The present invention provides a membrane, comprising a porous support layer a gas tight electronically and ionically conducting membrane layer and a catalyst layer, characterized in that the electronically and ionically conducting membrane layer is formed from a material having a crystallite structure with a crystal size of about 1 to 100 nm, and a method for producing same.Type: GrantFiled: August 29, 2008Date of Patent: June 11, 2013Assignee: Technical University of DenmarkInventors: Peter Vang Hendriksen, Mogens Mogensen, Wei Guo Wang, Bjarke Thomas Dalslet
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Patent number: 8454732Abstract: A membrane composition and process for its formation are disclosed from the removal of carbon dioxide (CO2) from mixed gases, such as flue gases of energy production facilities. The membrane includes a substrate layer comprising inorganic oxides, a barrier layer of in-situ formed Li2ZrO3, a Li2ZrO3 sorbent layer and an inorganic oxide cap layer. The membrane has a feed side for introduction of mixed gases containing nitrogen (N2) and a sweep side for recovery of CO2 wherein the membrane has a relatively high selectivity for CO2 transport at temperatures in the range of 400° to 700° C.Type: GrantFiled: September 12, 2011Date of Patent: June 4, 2013Assignee: Southwest Research InstituteInventors: Francis Yu Chang Huang, Vladimir I. Gorokhovsky, Kent E. Coulter
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Publication number: 20130138384Abstract: Disclosed are a composite separation membrane structure for a gas sensor for real-time monitoring of degradation of insulating oil of a power transformer, a gas sensor apparatus including the same, and a method and an apparatus for measuring gas concentration using the same. It is possible to locally diagnose whether there is a fault in the power transformer and what kind of fault occurs where in the power transformer by quantitatively measuring the concentration of several gases dissolved in the insulating oil in real time. As a result, breakdown of the power transformer may be prevented and remaining service life of the insulating oil in the power transformer may be predicted.Type: ApplicationFiled: August 3, 2012Publication date: May 30, 2013Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hosung KONG, Hung Gu HAN, Jung Wook LEE
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Patent number: 8449651Abstract: Disclosed herein is a method for preparing a crosslinked hollow fiber membrane. The method involves spinning a one phase solution comprising a monoesterified polyimide polymer, acetone as a volatile solvent, a spinning solvent, a spinning non-solvent, and optionally an organic and/or inorganic additive, wherein the volatile solvent is present in an amount of greater than 25 wt. % to about 50 wt. %, based on the total weight of the solution.Type: GrantFiled: August 25, 2010Date of Patent: May 28, 2013Assignee: Chevron U.S.A. Inc.Inventor: Shabbir Husain
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Patent number: 8449660Abstract: A first unsintered sheet made of PTFE having a standard specific gravity of 2.16 or more and a second unsintered sheet made of PTFE having a standard specific gravity of less than 2.16 are laminated, and a pressure is applied to a resulting laminated body so as to obtain a pressure-bonded article. The pressure-bonded article is stretched in a specified direction at a temperature lower than a melting point of PTFE, and then the pressure-bonded article is stretched further in the specified direction at a temperature equal to or higher than the melting point of PTFE or heated to a temperature equal to or higher than the melting point of PTFE. Thereafter, the pressure-bonded article stretched in the specified direction is stretched in a width direction perpendicular to the specified direction at a temperature lower than the melting point of PTFE.Type: GrantFiled: September 29, 2009Date of Patent: May 28, 2013Assignee: Nitto Denko CorporationInventors: Shunichi Shimatani, Akira Sanami
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Publication number: 20130118355Abstract: Composite-membrane monoliths include a cordierite monolith having a cordierite-ceramic composite membrane bonded to surfaces thereof with a surface median pore size. The cordierite-ceramic composite membrane has membrane surfaces with a membrane median pore size of 0.3 ?m or less. The cordierite-ceramic composite membrane may be a composite formed by firing the cordierite monolith subsequent to applying a cordierite-ceramic composite slip to surfaces thereof. The cordierite-ceramic slip may include cordierite particles and ceramic particles. The cordierite particles may have a cordierite median particle size smaller than the surface median pore size. The ceramic particles may have a ceramic median particle size smaller than the cordierite median particle size.Type: ApplicationFiled: November 10, 2011Publication date: May 16, 2013Inventors: Joel Edward Clinton, Yunfeng Gu
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Patent number: 8440000Abstract: A nitrogen-permeable structure includes a porous support and a nitrogen-permeable membrane adjacent to the porous support. The nitrogen-permeable membrane includes a first metal and a second metal, wherein the first metal is selected from niobium, tantalum, and vanadium, and the second metal is different from the first metal.Type: GrantFiled: January 21, 2011Date of Patent: May 14, 2013Assignee: Board of Trustees of Leland Stanford Junior UniversityInventor: Jennifer Wilcox
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Publication number: 20130112078Abstract: There is provided a silica membrane filter having performance of selectively separating an aromatic compound and performance of selectively separating an alcohol. The silica membrane filter is provided with a porous substrate and a silica membrane. The ratio of a He gas permeation amount to an N2 gas permeation amount (He gas permeation amount/N2 gas permeation amount) is 7 or less, and the ratio of the N2 gas permeation amount to a SF6 gas permeation amount (N2 gas permeation amount/SF6 gas permeation amount) is 1.5 or more.Type: ApplicationFiled: December 27, 2012Publication date: May 9, 2013Applicant: NGK Insulators, Ltd.Inventor: NGK Insulators, Ltd.
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Patent number: 8435326Abstract: A multi-stage membrane process for the removal of carbon dioxide from syngas streams containing at least about 5 volume percent carbon dioxide. The syngas is preferably obtained by the gasification of a biomass feedstock.Type: GrantFiled: January 17, 2011Date of Patent: May 7, 2013Assignee: G.D.O.Inventors: Steven J. Schmit, Jacqueline Hichingham, Duane A. Goetsch, Lloyd R. White, Ulrich Bonne
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Patent number: 8435327Abstract: A carbon dioxide permeable membrane is described. In some embodiments, the membrane includes a body having a first side and an opposite second side; a plurality of first regions formed from a molten carbonate having a temperature of about 400 degrees Celsius to about 1200 degrees Celsius, the plurality of first regions forming a portion of the body and the plurality of first regions extending from the first side of the body to the second side of the body; a plurality of second regions formed from an oxygen conductive solid oxide, the plurality of second regions combining with the plurality of first regions to form the body and the plurality of second regions extending from the first side of the body to the second side of the body; and the body is configured to allow carbon dioxide to pass from the first side to the second side.Type: GrantFiled: April 23, 2012Date of Patent: May 7, 2013Assignee: The Trustees of Columbia University in the City of New YorkInventors: Klaus S. Lackner, Alan C. West, Jennifer L. Wade
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Publication number: 20130104740Abstract: A method for preparing a palladium-gold alloy gas separation membrane system comprising a gold-palladium alloy membrane on a porous substrate coated with an intermetallic diffusion barrier. The method includes an abrading step to increase surface roughness of the palladium to a desired range, a gold plating step with a solution of chloroauric acid (AuCl4H) and hydrogen peroxide, followed by annealing to produce a palladium-gold alloy membrane.Type: ApplicationFiled: October 26, 2011Publication date: May 2, 2013Applicant: SHELL OIL COMPANYInventors: Nathan Earl PERKINS, II, John Charles SAUKAITIS
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Patent number: 8431227Abstract: The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix.Type: GrantFiled: May 12, 2011Date of Patent: April 30, 2013Assignee: Noritake Co., LtdInventors: Yosuke Takahashi, Sumihito Sago, Seiji Yamada, Masayoshi Hirano
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Patent number: 8425672Abstract: A membrane selectively permeable to light gases comprises a membrane body formed by a first plate and a second plate. The second plate comprises a thin layer that is selectively gas-permeable. In the region of windows, this layer is exposed. There, support is provided by a porous bottom wall in the first plate or by narrow bores in the second plate. A heating device causes a radiation heating of the windows.Type: GrantFiled: August 10, 2012Date of Patent: April 23, 2013Assignee: Inficon GmbHInventors: Vladimir Schwartz, Daniel Wetzig, Boris Chernobrod, Werner Grosse Bley
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Publication number: 20130092025Abstract: A defect-free hydrogen separation membrane includes a metal thin membrane. The metal thin membrane includes a first metal layer composed of palladium on a porous support without substantial penetration into surface pores of the porous support and a second metal layer on the first metal layer. The second metal layer is a product of palladium deposition and closes defects being open on the surface of the first metal layer.Type: ApplicationFiled: March 7, 2011Publication date: April 18, 2013Applicants: JX Nippon Oil & Energy Corporation, National Institute of Advanced Industrial Science and TechnologyInventors: Yasuyuki Matsumura, Takashi Maeda, Minoru Ogawa, Eiji Negishi
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Patent number: 8419839Abstract: First, a first porous body is manufactured by stretching, in a uniaxial direction, a sheet made of polytetrafluoroethylene having a standard specific gravity of 2.155 or more, and a second porous body is manufactured by stretching, in biaxial directions, a sheet made of polytetrafluoroethylene. Next, the first porous body is integrated with the second porous body by stretching a laminate of the first porous body and the second porous body in the same direction as the uniaxial direction while heating the laminate at a temperature equal to or higher than a melting point of polytetrafluoroethylene. Thus, a porous polytetrafluoroethylene membrane is produced.Type: GrantFiled: November 11, 2008Date of Patent: April 16, 2013Assignee: Nitto Denko CorporationInventor: Shunichi Shimatani
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Patent number: 8419961Abstract: An oil gas separation membrane combines a gas permeable yet oil and temperature resistant bulk polymer membrane such as poly(tetrafluoroethylene) and poly(tetrafluoroethylene-co-hexafluoropropylene); a porous metal support such as sintered metal frit disk made with stainless steel, bronze or nickel; and an highly gas permeable adhesive that bonds firmly the bulk polymer membrane and the metal frit surface together. The adhesive is either a homogenous polymer that has desirable gas permeability, or a coalescent porous polymer particulates network. A gas sensor employing the oil gas separation membrane for detecting and monitoring fault gases of oil filled electrical equipment requires no mechanical wearing or moving part such as pump and valve and the gas sensor is operated normally under various temperature and pressure conditions.Type: GrantFiled: May 28, 2009Date of Patent: April 16, 2013Assignee: Asensou Technologies Co., Ltd.Inventor: Ren Yan Qin
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Patent number: 8419838Abstract: A process for preparing a composite membrane comprising a porous support layer and a discriminating layer, comprising the steps of: (a) providing a porous support layer; (b) incorporating an inert liquid into the pores of the support layer; (c) applying a curable composition to the support layer; and (d) curing the composition, thereby forming the discriminating layer on the porous support. The process is particularly useful for preparing gas separation composite membranes.Type: GrantFiled: April 6, 2009Date of Patent: April 16, 2013Assignee: Fujifilm Manufacturing Europe B.V.Inventor: Yujiro Itami
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Publication number: 20130087042Abstract: A water-proof air-permeable filter (1) includes: a resin film (2) having formed therein a plurality of through pores (21); a treated layer (3) having hydrophobicity and oil repellency, and formed on at least one of both surfaces in the thickness direction of the resin film (2) such that the treated layer (3) has openings (31) at positions corresponding to the through pores (21); and a loop-shaped double-sided tape (4) stuck to an edge region of one of both surfaces in the thickness direction of the resin film (2), with the treated layer (3) interposed therebetween.Type: ApplicationFiled: March 23, 2011Publication date: April 11, 2013Applicant: NITTO DENKO CORPORATIONInventors: Satoru Furuyama, Satoshi Sakuma, Yozo Nagai, Junichi Moriyama
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Publication number: 20130081540Abstract: A process for forming a palladium or palladium alloy membrane on a ceramic surface by forming a pre-colloid mixture comprising a powder palladium source, carrier fluid, dispersant and a pore former and a binder. Ultrasonically agitating the precolloid mixture and applying to a substrate with an ultrasonic nozzle and heat curing the coating form a palladium-based membrane.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: UCHICAGO ARGONNE, LLC.Inventors: Tae H. Lee, Chan Young Park, Yunxiang Lu, Stephen E. Dorris, Uthamalingam Balachandran
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Publication number: 20130081991Abstract: A carbon film composite, separation membrane module, and a method of manufacturing are presented. A carbon film is on a surface of a porous substrate, and the carbon film has an R value of not less than about 0.840. The R value is calculated from a Raman spectrum of the carbon film.Type: ApplicationFiled: November 27, 2012Publication date: April 4, 2013Applicant: KYOCERA CORPORATIONInventor: KYOCERA CORPORATION
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Publication number: 20130074691Abstract: A water-proof air-permeable filter (1) includes: a resin film (2) having formed therein a plurality of through pores (21); and a treated layer (3) having hydrophobicity and oil repellency, and formed on at least one of both surfaces in the thickness direction of the resin film (2) such that the treated layer (3) has openings (31) at positions corresponding to the through pores (21). The through pores (21) each have a predetermined size larger than or equal to 0.01 ?m and smaller than or equal to 10 ?m, and are uniformly distributed such that a density of the through pores falls within specific limits included in a range from 10 to 1×108 pores/mm2.Type: ApplicationFiled: March 23, 2011Publication date: March 28, 2013Applicant: NITTO DENKO CORPORATIONInventors: Satoru Furuyama, Yozo Nagai, Junichi Moriyama
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Patent number: 8398754Abstract: A proton conducting membrane comprising, as a main component, a ceramic structure in which an oxygen atom of a metal oxide is bonded through the oxygen atom with at least one group derived an oxygen acid selected from —B(O)3—, —S(?O)2(O)2—, —P(?O)(O)3—, —C(?O)(O)2—, and —N(O)3—, wherein the metal oxide and said at least one group derived from the oxygen acid share the oxygen atom, the proton conducting membrane being made by a sol-gel reaction of the oxygen acid or its precursor and a precursor of the metal oxide in order to obtain a sol-gel reaction product, followed by heating of the sol-gel reaction product at a temperature in a range of 100° C. to 600° C., the oxygen acid or its precursor being selected from a boric acid, a sulfuric acid, a phosphoric acid, a carbonic acid, a nitric acid, and precursors thereof. Thus, a novel proton conducting membrane is provided.Type: GrantFiled: September 25, 2008Date of Patent: March 19, 2013Assignee: RikenInventors: Toyoki Kunitake, Yuanzhi Li, Yoshitaka Aoki, Emi Muto
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Patent number: 8394182Abstract: A composition of and a method of making high performance crosslinked membranes are described. The membranes have a high resistance to plasticization by use of crosslinking. The preferred polymer material for the membrane is a polyimide polymer comprising covalently bonded ester crosslinks. The resultant membrane exhibits a high permeability of CO2 in combination with a high CO2/CH4selectivity. Another embodiment provides a method of making the membrane from a monesterified polymer followed by final crosslinking after the membrane is formed.Type: GrantFiled: December 17, 2010Date of Patent: March 12, 2013Assignees: The University of Texas System, Chevron U.S.A. Inc.Inventors: William J. Koros, David Wallace, John Wind, Claudia Staudt-Bickel, Stephen J. Miller
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Patent number: 8394176Abstract: Disclosed are a gas separation membrane and a gas separation method in which at least one species of organic vapor is separated and recovered from an organic vapor mixture using the gas separation membrane. The gas separation membrane is made of an aromatic polyimide composed of a tetracarboxylic acid component consisting of an aromatic ring-containing tetracarboxylic acid and a diamine component comprising 10 to 90 mol % of a combination of (B1) 3,4?-diaminodiphenyl ether and (B2) 4,4?-diaminodiphenyl ether at a B1 to B2 molar ratio, B1/B2, ranging from 10/1 to 1/10, and 10 to 90 mol % of other aromatic diamine.Type: GrantFiled: February 4, 2009Date of Patent: March 12, 2013Assignee: Ube Industries, Ltd.Inventors: Tomonori Kanougi, Harutoshi Hoshino, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga
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Patent number: 8394183Abstract: An asymmetric membrane contains a porous layer and a dense layer adjacent thereto. The porous layer and the dense layer are formed of a polymeric material. The porous layer and/or dense layer contains a filler. The amount of the filler is 11 parts by mass or more per 100 parts by mass of the polymeric material contained in the asymmetric membrane.Type: GrantFiled: October 27, 2008Date of Patent: March 12, 2013Assignees: Shin-Etsu Polymer Co., Ltd., Denso Corporation, Shin-Etsu Chemical Co., Ltd.Inventors: Junya Ishida, Mitsuaki Negishi, Yuzo Morioka, Mika Kawakita, Katsunori Iwase, Manabu Maeda, Masahiko Minemura, Mamoru Hagiwara
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Patent number: 8394181Abstract: A permselective material has a polymer having an organosiloxane skeleton and containing a dispersed solid additive. When oxygen and nitrogen are passed through a membrane having the permselective material, the relation between the permeability coefficients [cm3·cm·sec?1·cm?2·cmHg?1] of oxygen and nitrogen at a temperature of 23±2° C. under a pressure difference of 1.05 atm to 1.20 atm through the membrane is expressed by Formula (1): 0.94 ? P ? ( O 2 ) P ? ( N 2 ) < 1 ( 1 ) where P(O2) denotes the permeability coefficient of oxygen, while P(N2) denotes the permeability coefficient of nitrogen.Type: GrantFiled: December 26, 2007Date of Patent: March 12, 2013Assignees: Shin-Etsu Polymer Co., Ltd., DENSO CORPORATION, Shin-Etsu Chemical Co., Ltd.Inventors: Junya Ishida, Katsunori Iwase, Akira Yamamoto, Masahiko Minemura