Apparatus For Selective Diffusion Of Gases (e.g., Semipermeable Membrane, Etc.) Patents (Class 96/4)
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Publication number: 20140360367Abstract: This invention relates to organopolysiloxane compounds. In some embodiments, the organopolysiloxane compound includes a siloxane unit having at least one trialkylsilyl pendant group attached thereto through an organic group spacer. The present invention also relates to methods of making the organopolysiloxane, a hydrosilylation-curable silicone composition including the organopolysiloxane, a cured product of the silicone composition, a membrane including the cured product, a method of making the membrane, and a method of separating components in a feed mixture using the membrane.Type: ApplicationFiled: December 27, 2012Publication date: December 11, 2014Inventors: Dongchan Ahn, James S. Hrabal, Alexandra N. Lichtor
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Publication number: 20140360372Abstract: Provided herein are methods and devices to enrich trace quantities of impurities in gaseous mixtures, such as hydrogen fuel. The methods and devices rely on concentration of impurities so as to allow the detection of the impurities using commonly-available detection methods.Type: ApplicationFiled: June 20, 2014Publication date: December 11, 2014Inventors: Shabbir Ahmed, Dionissios D. Papadias, Sheldon D.H. Lee, Romesh Kumar
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Publication number: 20140360373Abstract: A module for an inert gas system has a housing that includes a first portion, a second portion removable from the first portion, at least one fluid inlet port, and at least one fluid outlet port. The module also includes a replaceable selectively permeable membrane for separating components of a gaseous fluid placed within the housing.Type: ApplicationFiled: June 11, 2013Publication date: December 11, 2014Inventors: Frederick Peacos, Kenneth Crawford
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Publication number: 20140360366Abstract: The present invention appreciates that compounds comprising ester linkages and nitrogen-containing moieties that are at least divalent (e.g., urea, urethane, amide, etc.) can be crosslinked with azides to form membranes that are resistant to C02 plasticization, that are selective for acid gases relative to nonpolar gases such as hydrocarbons, and that have high acid gas flux characteristics. The resultant membranes have stable structure and stable separation properties at higher temperatures and pressures. The membranes are compatible with many industrial processes in which polar gases are separated from nopolar gases. In an exemplary mode of practice, the membranes can be used to separate acid gases from the hydrocarbon gases in natural or non-acid gas components of flue gas mixtures (e.g., N2, O2, etc.).Type: ApplicationFiled: September 20, 2012Publication date: December 11, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Scott T. Matteucci, Clark H. Cummins, William J. Kruper, Harry Craig Silvis
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Patent number: 8906137Abstract: The present invention relates to an arrangement for separating oxygen from an oxygen containing gas. It comprises a membrane unit (12), and an electrode unit (24). The membrane unit (12) comprises a porous substrate (20), a dense membrane (14) and at least one electrode (18), wherein the porous substrate (20) is directed towards the electrode unit (24), and wherein the electrode unit (24) comprises at least one electrode comprising at least one rotatable electrode wing (26) being at least partially electrically conductive. An arrangement according to the invention allows to separate oxygen with improved efficiency and improved convenience with respect to maintenance and noise.Type: GrantFiled: October 18, 2011Date of Patent: December 9, 2014Assignee: Koninklijke Philips N.V.Inventors: Rainer Hilbig, Mareike Klee, Wilhelmus Cornelis Keur
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Patent number: 8906143Abstract: Disclosed herein is a membrane separation apparatus that includes an integrated filter element and a membrane element housed within a single vessel. The vessel is configured to allow liquids to be trapped and removed from the vessel, and gases to flow to and through the membrane element. The apparatus is useful in the conditioning of fuel gas to separate methane from C2+ hydrocarbons.Type: GrantFiled: September 2, 2011Date of Patent: December 9, 2014Assignee: Membrane Technology and Research, Inc.Inventor: Kaaeid A. Lokhandwala
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Patent number: 8900523Abstract: A method of converting C2 and/or higher alkanes to olefins by contacting a feedstock containing C2 and/or higher alkanes with a first surface of a metal composite membrane of a sintered homogenous mixture of an Al oxide or stabilized or partially stabilized Zr oxide ceramic powder and a metal powder of one or more of Pd, Nb, V, Zr, Ta and/or alloys or mixtures thereof. The alkanes dehydrogenate to olefins by contact with the first surface with substantially only atomic hydrogen from the dehydrogenation of the alkanes passing through the metal composite membrane. Apparatus for effecting the conversion and separation is also disclosed.Type: GrantFiled: January 23, 2008Date of Patent: December 2, 2014Assignee: UChicago Argonne, LLC.Inventor: Uthamalingam Balachandran
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Patent number: 8900345Abstract: A separation membrane including an alloy, the alloy including at least one Group 5 element, and at least one selected from Pt and Ir.Type: GrantFiled: March 18, 2013Date of Patent: December 2, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang Hee Kim, Hyeon Cheol Park, Byung Ki Ryu, Jae Ho Lee
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Patent number: 8900351Abstract: Provided is a filter medium including a porous polytetrafluoroethylene (PTFE) membrane and a gas-permeable supporting member that are integrated to ensure sufficient stiffness, having excellent gas permeability, and providing excellent bonding between respective layers included in the filter medium. The gas-permeable supporting member includes: a substrate having gas-permeability; and a fiber layer that is placed on the substrate so as to be in contact with the porous PTFE membrane. The gas-permeable supporting member has a structure in which fibers of the fiber layer enter into the substrate and are entangled with the substrate so that the fiber layer is bonded to the substrate. The fiber layer contains polyolefin-containing fibers that are bonded to the porous membrane.Type: GrantFiled: November 11, 2008Date of Patent: December 2, 2014Assignee: Nitto Denko CorporationInventors: Masaaki Mori, Masatoshi Suzuki
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Patent number: 8900350Abstract: One aspect of the present teachings includes a separation membrane arranged in a hollow case. A particular component concentration chamber and a particular component dilution chamber are arranged in series in the hollow case. The particular component concentration chamber is capable of increasing concentration of the particular component by allowing permeation of the particular gas through the separation membrane. The particular component dilution chamber is capable of increasing concentration of the particular component by not allowing permeation of the particular gas through the separation membrane. The particular component concentration chamber and the particular component dilution chamber are configured such that only a gas containing the particular component and permeated through the separation membrane or only a gas containing the particular component not permeated through the separation membrane in one of the chambers disposed on an upstream side (i.e.Type: GrantFiled: January 17, 2013Date of Patent: December 2, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventors: Masataka Suzuki, Takashi Suefuji, Akio Muraishi, Katsuhiko Makino, Toshiyuki Iwasaki, Takashi Mani
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Publication number: 20140339167Abstract: The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF3CF?CH2, HFO-1234yf) or trans-1,3,3,3-tetrafluoropropene (CF3CH?CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separation.Type: ApplicationFiled: April 29, 2014Publication date: November 20, 2014Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh
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Patent number: 8882886Abstract: An aircraft fuel tank flammability reduction method includes contacting a membrane filter with air feed, permeating oxygen and nitrogen from the air feed through the membrane, and producing filtered air from the filter. The filtered air is produced from the filter as a result of the membrane removing any hydrocarbons containing six or more carbon atoms to produce a total of 0.001 ppm w/w or less. An air separation method includes feeding air into a filter containing a hollow fiber membrane that exhibits the property of resisting degradation due to exposure to hydrocarbons containing six or more carbon atoms. The filter exhibits a pressure drop across the membrane of less than 5 psi. The method includes feeding the filtered air into an air separation module containing a hollow fiber membrane that exhibits a susceptibility to degradation from exposure to hydrocarbons containing six or more carbon atoms.Type: GrantFiled: October 31, 2012Date of Patent: November 11, 2014Assignee: The Boeing CompanyInventors: Barbara J Evosevich, Ivana Jojic
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Patent number: 8882875Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.Type: GrantFiled: August 2, 2012Date of Patent: November 11, 2014Assignee: Hollingsworth & Vose CompanyInventor: David T. Healey
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Patent number: 8876947Abstract: A method and a device for reducing the humidity of a gas in a housing interior, in particular in a battery housing interior, includes leading a gas through a first selectively permeable membrane and into an intermediate space. The intermediate space has the first selectively permeable membrane as an inlet and a second selectively permeable membrane as an outlet. The gas is then cooled in the intermediate space by a cooling unit such that a water vapor portion of the gas is condensed into water and the gas having a reduced water vapor content is directed through the second selectively permeable membrane into the housing interior.Type: GrantFiled: October 28, 2010Date of Patent: November 4, 2014Assignee: Robert Bosch GmbHInventors: Alexander Reitzle, Ulrich Zimmermann
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Publication number: 20140318373Abstract: Apparatuses and systems for removing water vapor from a gas stream and for providing water purification, recovery and/or concentration. The apparatuses and systems employ a graphene oxide or a perforated graphene monolayer membrane to separate liquid water molecules and/or water vapor molecules from gasses, liquids, and other substances such as a wet muck or an aqueous sample. In one embodiment, an apparatus for removing water from a gas or liquid stream includes a first lumen, a second lumen, and a graphene oxide membrane separating the first lumen from the second lumen. Water molecules within a humid gas or liquid stream introduced into the first lumen pass through the graphene oxide membrane into a dry gas stream introduced into the second lumen.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Applicant: LOCKHEED MARTIN CORPORATIONInventors: John A. Wood, Rebecca Schwartz, Paul J. Lilly
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Publication number: 20140322519Abstract: The present invention relates to a method of treating a surface comprising a silicone elastomer having a plurality of Si—H groups by contacting at least one region of the surface with a solution comprising a surface treatment compound, to give a treated surface with Si—OH, Si—OR, or Si—C groups. The present invention relates to a hydrosilylation-curable silicone composition. In some examples, the hydrosilylation-curable silicone composition includes an organohydrogen-polysiloxane having an average of at least forty silicon-bonded hydrogen atoms per molecule, a cross-linking agent having an average of at least two aliphatic unsaturated carbon-carbon bonds per molecule, and a hydrosilylation catalyst, wherein the mole ratio of silicon-bonded hydrogen atoms in the composition to aliphatic unsaturated carbon-carbon bonds in the composition is at least 20:1. The invention also relates to membranes, methods of making membranes, gas permeable supports for membranes, and methods of gas separation using membranes.Type: ApplicationFiled: November 8, 2012Publication date: October 30, 2014Inventors: Dongchan Ahn, James S. Hrabal, Jeong Yong Lee
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Patent number: 8871010Abstract: A plasma spray method for the manufacture of an ion conductive membrane is provided which ion conductive membrane has an ion conductivity, in which method the membrane is deposited as a layer (11) onto a substrate (10) in a process chamber, wherein a starting material (P) is sprayed onto a surface of the substrate (10) in the form of a process beam (2) by means of a process gas (G), wherein the starting material is injected into a plasma at a low process pressure, which is at most 10,000 Pa, and is partially or completely molten there. Oxygen (O2; 22) is supplied to the process chamber (12) during the spraying at a flow rate which amounts to at least 1%, preferably at least 2%, of the overall flow rate of the process gas.Type: GrantFiled: March 15, 2012Date of Patent: October 28, 2014Inventors: Malko Gindrat, Rajiv J. Damani
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Patent number: 8858682Abstract: In order to control bubble removal or mixing in a flow channel, bubble transfer between flow channels (1, 2) is controlled by disposing first flow channel (1) for flow of a first fluid of liquid or gas and second flow channel (2) for flow of a second fluid of liquid with, interposed therebetween, gas exchange unit (5) through which while no liquid can pass, a gas component can be transferred, and by providing a pressure difference between the flow channels (1, 2) with the gas exchange unit (5). By rendering the pressure of the second flow channel (2) higher than that of the first flow channel (1), any bubble transfer from the first fluid to the second fluid is prevented, or bubbles within the second fluid are transferred into the first fluid to thereby attain deaeration.Type: GrantFiled: December 28, 2005Date of Patent: October 14, 2014Assignee: Shimadzu CorporationInventor: Masakazu Akechi
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Publication number: 20140298993Abstract: Provided is a hydrogen separation membrane module, and more particularly, a hydrogen separation membrane module having a mixing part capable of increasing hydrogen purification efficiency by maximizing a mixing effect and a dispersion effect of a mixture gas supplied to the hydrogen separation membrane using the mixing part provided with a microchannel to supply the mixture gas to the hydrogen separation membrane.Type: ApplicationFiled: October 23, 2012Publication date: October 9, 2014Inventors: Shin-Kun Ryi, Jong-Soo Park, Kyung-Ran Hwang, Chun-Boo Lee, Sung-Wook Lee
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Publication number: 20140290488Abstract: The ventilation member of the present invention includes: a support; and an air-permeable membrane disposed on the support. The support includes: a base portion supporting the air-permeable membrane; and a leg portion extending from the base portion toward the interior space of a housing and adapted to fix the ventilation member to the opening of the housing. The leg portion includes: insertion portions separated from each other in a circumferential direction by slits formed between the insertion portions, the insertion portions being adapted to be elastically deformed radially inwardly when the insertion portions are inserted into the opening and then to be fixed to the opening; and rounded portions each formed in a region between an inner circumferential surface of the insertion portion and a circumferential end surface of the insertion portion at a root of the insertion portion and having a rounded convex surface.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: Nitto Denko CorporationInventors: Kou UEMURA, Youzou YANO
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Publication number: 20140290489Abstract: The ventilation member of the present invention includes: a support; and an air-permeable membrane disposed on the support. The support includes: a base portion supporting the air-permeable membrane; and a leg portion extending from the base portion toward the interior space of a housing and adapted to fix the ventilation member to the opening of the housing. The leg portion includes: insertion portions separated from each other in a circumferential direction by slits formed between the insertion portions in an insertion start side of the leg portion, the insertion portions being adapted to be elastically deformed radially inwardly when the insertion portions are inserted into the opening and then to be fixed to the opening; and receding portions in the insertion portions.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: Nitto Denko CorporationInventors: Kou UEMURA, Youzou YANO
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Publication number: 20140290490Abstract: The present invention provides a ventilation member attachable to a housing having an opening for ventilation. This ventilation member includes: a support including: a base portion adapted to form an air passage between an interior space and an exterior space of the housing; and a leg portion extending from the base portion and adapted to be fitted into the opening; an air-permeable membrane disposed on the support to cover the air passage; and a sealing member made of a resin and placed at a root of the leg portion of the support. This sealing member has a compression set of 10% or less when measured under conditions of a test temperature of 100° C. and a test time of 100 hours in accordance with JIS K 6262. According to the present invention, it is possible to provide a ventilation member suitable for preventing water from entering a housing even during a high-pressure car wash test using high-temperature water.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: Nitto Denko CorporationInventors: Kou UEMURA, Youzou YANO
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Patent number: 8845791Abstract: A system and method of cleaning and scrubbing contaminants, including sulfides, from an unclean or raw gas includes one or more containers, each of which include a gas permeable receptacle or bag containing an appropriate gas scrubbing medium for removing the contaminants from the gas stream. A gas extraction device is adapted via inserted into the gas scrubbing medium with the gas permeable receptacle wherein the gas extraction device is connected to at least one gas outlet port in the container. A series of containers can be used wherein the containers are connected sequentially to remove the gas. A system for bypassing one of the plurality of containers in order to clean out the container while the gas cleaning mechanism is still in operation is also described.Type: GrantFiled: November 10, 2011Date of Patent: September 30, 2014Assignee: Gundersen Lutheran Health SystemInventor: Corey Zarecki
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Patent number: 8845784Abstract: The present disclosure relates to a system for carbon dioxide seperation and capture. The system includes a porous metal membrane comprising Ni, Ag, or combinations thereof and having molten carbonate within the pores. A CO2 containing flue gas input stream is separated from a reactant gas input stream by the membrane. The CO2 is removed from the flue gas input stream as it contacts the membrane resulting in a CO2 free flue gas output stream and a CO2 containing reactant gas output stream.Type: GrantFiled: January 12, 2011Date of Patent: September 30, 2014Assignee: University of South CarolinaInventor: Kevin Huang
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Publication number: 20140260985Abstract: A device includes a desiccant and an enclosure having an interior surrounding the desiccant. The enclosure may include a moisture vapor permeable membrane with a moisture permeability sufficient to pass moisture from outside the enclosure to the desiccant. The device may further include a functional device within the enclosure having processing circuitry to perform at least one function associated with the desiccant.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: Makefield LLCInventors: Kutadgu Akdogan, Kalyan C. Vepuri, Christian Von Heifner
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Patent number: 8834612Abstract: A hydrogen separation apparatus, provided with an independent hydrogen permeable membrane, capable of suppressing or preventing deformation of the hydrogen permeable membrane. The hydrogen separation apparatus includes a porous support member, an independent hydrogen permeable membrane disposed adjacent to the porous support member, and a joining member for joining the porous support member and the hydrogen permeable membrane. A production process for the hydrogen separation apparatus includes (1) disposing a joining member forming material at a surface side of a porous support member, to be opposite to an independent hydrogen permeable membrane, (2) disposing the independent hydrogen permeable membrane adjacent to the porous support member at the surface side of the porous support member to which surface side the joining member forming material is disposed, and (3) joining the porous support member and the independent hydrogen permeable membrane with the joining member forming material.Type: GrantFiled: June 5, 2008Date of Patent: September 16, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Maki Hoshino, Takao Izumi
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Publication number: 20140255636Abstract: Disclosed are blended polymeric membranes that include at least a first polymer and a second polymer that is UV treated, wherein the first and second polymers are each selected from the group consisting of a polymer of intrinsic microporosity (PIM), a polyetherimide (PEI) polymer, a polyimide (PI) polymer, and a polyetherimide-siloxane (PEI-Si) polymer.Type: ApplicationFiled: February 28, 2014Publication date: September 11, 2014Applicant: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Ihab Nizar Odeh, Lei Shao
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Publication number: 20140251131Abstract: This disclosure relates to palladium-alloyed membranes, and more specifically to palladium-alloyed membranes for high temperature applications and to methods for making and using the same.Type: ApplicationFiled: March 7, 2014Publication date: September 11, 2014Inventors: James Douglas Way, Sabina Kathleen Gade, Amanda Elizabeth Lewis, Hani Walid Abu El Hawa
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Publication number: 20140251128Abstract: A process and a plant for obtaining highly pure methane from biogas where biogas coming from a fermenter is compressed and fed to at least one membrane unit having a selectively permeable membrane, which provides a product gas stream containing an elevated proportion of methane and a gas stream containing a reduced proportion of methane. A quality sensor may be arranged in the outlet line for the highly pure product gas. A vacuum pump, the capacity of which can be regulated, may be connected to the low-pressure side of one of the membrane units. It is controlled by a control unit which receives its input signal from the quality sensor in the outlet line, and if the proportion of methane measured by the quality sensor falls below a certain value, the capacity of the vacuum pump is regulated so that the pressure difference at the membrane increases.Type: ApplicationFiled: March 11, 2014Publication date: September 11, 2014Applicant: EISENMANN AGInventor: Lukas Graf
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Patent number: 8828120Abstract: A device for separating a gas mixture into product gas and offgas by way of gas permeation includes four membrane units and a compressor connected upstream of the first membrane unit. The membrane units have a gas inlet, a retentate outlet and a permeate outlet. Lines connect the membrane units to each other and to the compressor. Product gas is obtained via the permeate outlet of the second membrane unit and offgas via the retentate outlet of the first membrane unit. Additional product gas is obtained via the retentate outlet of an upstream membrane unit and additional offgas is obtained via the permeate outlet of a further upstream membrane unit. A method includes use of the device to separate a gas mixture into product gas and offgas.Type: GrantFiled: April 16, 2010Date of Patent: September 9, 2014Assignee: Axiom Angewandte Prozesstechnik Ges. m.b.H.Inventors: Johannes Szivacz, Michael Harasek
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Patent number: 8828122Abstract: A system includes an acid gas removal (AGR) system configured to remove an acid gas from an untreated syngas to generate a treated syngas, a hydrogen separation system configured to receive the treated syngas to generate a non-permeate and a permeate, and an expander configured to expand the non-permeate to generate a cooled non-permeate. The AGR system includes a solvent chiller configured to cool a solvent via heat exchange with the cooled non-permeate.Type: GrantFiled: July 9, 2012Date of Patent: September 9, 2014Assignee: General Electric CompanyInventors: Pradeep Stanley Thacker, Sachin Suhas Naphad, Rupinder Singh Benipal
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Patent number: 8828125Abstract: The ventilation member of the present invention includes a waterproof gas permeable membrane (11), and a support body (12) having a through hole (13). One opening of the through hole (13) is closed by the gas permeable membrane (11). The support body (12) includes, at an edge of the opening closed by the gas permeable membrane (11), a first region and a second region facing each other with the opening located therebetween. A first angled protrusion (12a) in which a peak and a trough are arranged alternately along the edge of the opening is provided in the first region, and a second angled protrusion (12b) in which a peak and a trough are arranged alternately along the edge of the opening is provided in the second region.Type: GrantFiled: April 6, 2011Date of Patent: September 9, 2014Assignee: Nitto Denko CorporationInventors: Kouji Furuuchi, Youzou Yano
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Patent number: 8828119Abstract: 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: November 12, 2013Date of Patent: September 9, 2014Assignee: DPoint Technologies Inc.Inventors: Greg Montie, James Franklin Dean, Curtis Mullen, Robert Hill
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Patent number: 8821614Abstract: The disclosure relates to a membrane testing system for individual evaluation of a plurality of planar membranes subjected to a feed gas on one side and a sweep gas on a second side. The membrane testing system provides a pressurized flow of a feed and sweep gas to each membrane testing cell in a plurality of membrane testing cells while a stream of retentate gas from each membrane testing cell is ported by a retentate multiport valve for sampling or venting, and a stream of permeate gas from each membrane testing cell is ported by a permeate multiport valve for sampling or venting. Back pressure regulators and mass flow controllers act to maintain substantially equivalent gas pressures and flow rates on each side of the planar membrane throughout a sampling cycle. A digital controller may be utilized to position the retentate and permeate multiport valves cyclically, allowing for gas sampling of different membrane cells over an extended period of time.Type: GrantFiled: September 28, 2012Date of Patent: September 2, 2014Assignee: U.S. Department of EnergyInventors: Erik J. Albenze, David P. Hopkinson, David R. Luebke
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Patent number: 8821616Abstract: DDR nanocrystals were synthesized using hydrothermal secondary growth. The morphology of the nanoparticles can be manipulated by changing the ratio of silica to water, the synthesis temperature, and the mineralizing agents. Specifically, nanocrystals with morphology of hexagonal plates, octahedral, and diamond-like plates are disclosed. These nanoparticles can be used as seed coatings for DDR membrane growth on substrates, and for the fabrication of mixed matrix membranes, and for any other use where uniform, small DDR zeolite crystals are beneficial.Type: GrantFiled: February 14, 2012Date of Patent: September 2, 2014Assignee: Georgia Tech Research CorporationInventors: Zhengzhi Zhou, Sankar Nair
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Publication number: 20140238023Abstract: A device for automatically detecting and removing air from a gas mixture of an organic gas and air includes calculating a saturation pressure value based on a temperature of the gas mixture in a reservoir 1, and obtaining a pressure threshold value by adding a margin value to the saturation pressure value. When the pressure value inside the reservoir 1 is higher than the pressure threshold value, air is detected to be in the gas mixture. After this detection, a controller 5 pressurizes and introduces the gas mixture into a pressure container 2 to condense the organic gas in the gas mixture, thus producing a diluted gas mixture. Subsequently, the diluted gas mixture is introduced to a supply side of a membrane unit 3, the organic gas in the diluted gas mixture is recovered at a permeation side thereof, and a residual gas is discharged outside of the device.Type: ApplicationFiled: October 19, 2012Publication date: August 28, 2014Applicant: FUJI ELECTRIC CO., LTD.Inventors: Mikiko Hatama, Kokan Kubota, Yoshitaka Kawahara, Hiroaki Sgu, Ichiro Myogan, Isamu Osawa
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Patent number: 8814982Abstract: The present invention discloses a new type of high selectivity UV-cross-linked tetrazole group functionalized polymer nanosieve (TZPIM) membranes, their preparation, as well as their use for gas and liquid separations. The UV-cross-linked TZPIM membrane showed more than 50% improvement in CO2/CH4 selectivity and more than 30% improvement in CO2/N2 selectivity compared to the uncross-linked TZPIM membrane for CO2/CH4 and CO2/N2 separations, respectively.Type: GrantFiled: October 18, 2012Date of Patent: August 26, 2014Assignee: UOP LLCInventors: Chunqing Liu, Mark E. Schott, Travis C. Bowen
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Patent number: 8814993Abstract: A housing (10) is provided with an opening (11) having a tapered surface (12). A vent member (2) to be attached to the opening (11) includes a support body (3) having a vent passage (30), a waterproof gas-permeable membrane (4), and a cover (5). The support body (3) has a base portion (31) to which the waterproof gas-permeable membrane (4) is bonded, and a stem portion (32) extending from the base portion (31) so as to be engaged with an inside surface of the housing (10). The stem portion (32) is fitted with a seal member (6), and this seal member (6) is pressed against the tapered surface (12) in the opening (11) by a pressing portion (34).Type: GrantFiled: January 10, 2012Date of Patent: August 26, 2014Assignee: Nitto Denko CorporationInventor: Youzou Yano
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Patent number: 8814983Abstract: The present disclosure is directed to a system for delivery of a target material and/or energy. The system includes a source configured to provide a mixture containing the target material and a non-target material, a delivery conduit coupled to the source to receive the mixture from the source, and an in-line extraction device concentric to the delivery conduit. The in-line extraction device is configured to selectively extract the target material and/or energy from the mixture in the delivery conduit and to delivery it to a downstream facility.Type: GrantFiled: November 20, 2012Date of Patent: August 26, 2014Assignee: McAlister Technologies, LLCInventor: Roy Edward McAlister
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Patent number: 8814984Abstract: A gas purification process for treating a gas stream includes supplying the gas stream to at least one membrane unit to produce a permeate stream and a retentate stream. The retentate stream contains a lower concentration of at least one of water, hydrogen sulfide, or carbon dioxide as compared to the gas stream. The retentate stream is supplied to a molecular sieve unit to remove hydrogen sulfide to produce a treated gas product stream.Type: GrantFiled: May 9, 2012Date of Patent: August 26, 2014Assignee: UOP LLCInventors: Christopher B. McIlroy, John R. Harness, Nagaraju Palla, Ronald K. Subris, Stephen J. Van Dyke
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Publication number: 20140230649Abstract: A gas separation method includes flowing a gas feed along a feed flow path within a housing directionally from a product end to a feed end of a gas separation membrane. After the feed flow path, the gas feed flows along a membrane flow path defined by the membrane from the feed end to the product end. The feed flow path is counter to the membrane flow path. Heat may be exchanged between the feed flow path and the membrane flow path and increase separation efficiency. Also, heat exchanged may compensate for some temperature drop in the membrane due to enthalpy of gas separation. A gas separation module includes a feed flow path within a housing extending directionally from a product end to a feed end of a membrane. The feed flow path is counter to a membrane flow path defined by the membrane.Type: ApplicationFiled: February 19, 2013Publication date: August 21, 2014Applicant: THE BOEING COMPANYInventor: The Boeing Company
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Publication number: 20140230654Abstract: The present invention relates to a gas separation membrane comprising as a main component a polyacetal, wherein the polyacetal contains 1.5 to 10 mol of an oxyalkylene unit based on 100 mol of an oxymethylene unit. The gas separation membrane of the present invention has high carbon dioxide gas separating ability and high permeability rate to carbon dioxide gas and is advantageously used as a separation membrane for carbon dioxide gas contained in exhaust gas.Type: ApplicationFiled: September 18, 2012Publication date: August 21, 2014Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventor: Akira Ito
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Publication number: 20140220462Abstract: [Problem] The object of the invention is to provide the filter device disposed in the moist fluid passage of the fuel cell system in that, water is not adhered and never remains in the filter and when leaving it under the low temperature after the system stops, blockage by freezing the filter can surely be prevented, and the complex control and the heat source such as heaters for the decompression as conventional is unnecessary, and the filter device is cheap and compact.Type: ApplicationFiled: August 30, 2012Publication date: August 7, 2014Applicants: NISSAN MOTOR CO., LTD., KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHOInventors: Tsuyoshi Takeda, Kazuhiko Osawa, Daisaku Inamura, Ichiro Okawara, Takatada Usami, Shinichiro Takemoto
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Publication number: 20140208949Abstract: A gas separation membrane, containing: a support; and a separating layer formed on the support, the separating layer containing a resin; the separating layer containing, at the side thereof opposite to the support, a hydrophilic modification treatment surface, the hydrophilic modification treatment surface involved in a layer having a film thickness of 0.1 ?m or less, and the hydrophilic modification treatment surface provided with a surface contact angle measured by using water thereon in the range of 60 degrees or less.Type: ApplicationFiled: March 27, 2014Publication date: July 31, 2014Applicant: FUJIFILM CORPORATIONInventors: Kenichi ISHIZUKA, Shigehide ITOU
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Patent number: 8784542Abstract: The invention relates to a nanofiber membrane layer having a basis weight of 0.01-50 g/m2 and a porosity of 60-95%, comprising a nanoweb made of polymeric nanofibers with a number average diameter in the range of 50-600 nm, consisting of a polymer composition comprising a semicrystalline polyamide having a C/N ratio of at most 5.5. The invention also relates to water and air filtration devices comprising such a nanofiber membrane layer.Type: GrantFiled: July 15, 2010Date of Patent: July 22, 2014Assignee: DSM IP Assets B.V.Inventors: Konraad Albert Louise Hector Dullaert, Marko Dorschu, Arnaud David Henri Chiche
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Patent number: 8784531Abstract: In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing a predetermined major component gas, carbon dioxide, and water vapor, the energy utilization efficiency thereof is improved. Also, by utilizing the function of this gas separation apparatus, a membrane reactor and a hydrogen production apparatus exhibiting high energy utilization efficiency are provided. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied at a temperature of 100° C. or higher, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively.Type: GrantFiled: December 26, 2011Date of Patent: July 22, 2014Assignee: Renaissance Energy Research CorporationInventors: Osamu Okada, Masaaki Teramoto, Eiji Kamio, Nobuaki Hanai, Yasato Kiyohara
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Patent number: 8778054Abstract: A method for generating heat energy in a power plant by burning a carbonaceous fuel in a combustion chamber of the power plant and a system for carrying out the method is described. A combustion chamber is fluidly connected to a membrane chamber that includes a membrane operating at a temperature between 600 and 1000° C. The combustion chamber receives a cleaned flue-gas oxygen mixture for combustion from the membrane chamber. Oxygen from heated air passes through the membrane in the membrane chamber to the permeate side of the membrane, where it is mixed with cleaned heated flue gas and the resulting gas mixture is fed to the combustion chamber. Flue gas removed from the combustion chamber are cooled, cleaned and heated as described herein and recirculated to the membrane chamber.Type: GrantFiled: April 3, 2010Date of Patent: July 15, 2014Assignee: Forschungszentrum Juelich GmbHInventors: Jewgeni Nazarko, Ernst Riensche, Reinhard Menzer, Wilhelm Albert Meulenberg, Stefan Baumann
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Patent number: 8778062Abstract: A method and apparatus for processing air. The apparatus comprises an air separation module, a first input, a first output, a second output, and a flow control system. The air separation module is configured to generate an inert gas. The first input for the air separation module is configured to receive first air. The first output for the air separation module is configured to output the inert gas from the air separation module. The second output for the air separation module is configured to output separated air from the air separation module. The flow control system is configured to control a flow of air in the air separation module that increases a rate at which the air separation module reaches a desired operating temperature for generating the inert gas using a number of ports in the flow control module.Type: GrantFiled: December 15, 2011Date of Patent: July 15, 2014Assignee: The Boeing CompanyInventor: Donald Ray Snow, Jr.
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Patent number: 8778056Abstract: There are provided a process for producing a zeolite membrane which, even when large, has few defects and which has higher separation performance than conventional zeolite membranes, and a zeolite membrane obtained by the process. In the process, the structure-directing agent is removed in the atmosphere having an O2 concentration of 22.0 vol % or more. Specifically, the process includes: a particle adhesion step of allowing zeolite particles functioning as seeds to flow down the surface of the substrate by means of the weight of the slurry itself, thereby adhering to the substrate and a membrane-forming step of forming a zeolite membrane on the substrate by immersing the substrate having the zeolite particles adhering thereto in sol containing the structure-directing agent for hydrothermal synthesis, thereby forming a zeolite membrane on the substrate.Type: GrantFiled: July 9, 2012Date of Patent: July 15, 2014Assignee: NGK Insulators, Ltd.Inventors: Tetsuya Uchikawa, Kenji Yajima, Makiko Niino
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Publication number: 20140190146Abstract: The carbon dioxide membrane separation system in a coal gasification process contains introduction of a mixed gas of hydrogen (H2) and carbon dioxide (CO2) in a high temperature and high pressure condition generated through water gas shift reaction from a water gas shift reaction furnace, while maintaining the temperature and pressure condition, to a zeolite membrane module containing a zeolite membrane for removing carbon dioxide, thereby removing carbon dioxide and generating a fuel gas rich in hydrogen. The fuel gas rich in hydrogen in a high temperature and high pressure condition discharged from the zeolite membrane module is fed to a gas turbine of the power generation facility while maintaining the temperature and pressure condition.Type: ApplicationFiled: April 19, 2012Publication date: July 10, 2014Applicant: HITACHI ZOSEN CORPORATIONInventors: Suguru Fujita, Ken-ichi Sawamura, Masanobu Aizawa