Selective Diffusion Of Gases Through Substantially Solid Barrier (e.g., Semipermeable Membrane, Etc.) Patents (Class 95/45)
-
Patent number: 8906139Abstract: The present invention relates to selectively isolating gases using a natrolite-based zeolite, and more particularly, to a novel natrolite-based zeolite and to selectively isolating hydrogen and/or helium gas using a natrolite-based zeolite. The present invention is characterized in that gas containing hydrogen is brought into contact with a natrolite-based zeolite to selectively isolate the hydrogen. The present invention provides a sorbent which can selectively isolate hydrogen and/or helium, and provides a method for isolating the hydrogen and/or helium at room temperature or at a high temperature.Type: GrantFiled: September 21, 2009Date of Patent: December 9, 2014Assignee: Postech Academy-Industry FoundationInventor: Suk Bong Hong
-
Patent number: 8906225Abstract: A new family of crystalline microporous metallophosphates designated AlPO-57 has been synthesized. These metallophosphates are represented by the empirical formula R+rMmn+EPxSiyOz where R is an organoammonium cation such as the DEDMA+, M is a divalent framework metal such as an alkaline earth or transition metal, and E is a framework element such as aluminum or gallium. The microporous AlPO-57 compositions are characterized by a new unique ABC-6 net structure and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.Type: GrantFiled: June 29, 2012Date of Patent: December 9, 2014Assignee: UOP LLCInventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
-
Publication number: 20140352533Abstract: The invention provides methods for making silicoaluminophosphate-34 (SAPO-34) membranes comprising interlocking SAPO-34 crystals. In the methods of the invention, the SAPO-34 membranes are formed through in situ crystallization on a porous support using a synthesis mixture initially including a SAPO-34 forming gel and a plurality of SAPO-34 crystals dispersed in the gel. The invention also provides supported SAPO-34 membranes made by the methods of the invention. The invention also provides methods for separating a first gas component from a gas mixture, the methods comprising the step of providing a membrane of the invention.Type: ApplicationFiled: January 10, 2013Publication date: December 4, 2014Inventors: John L. Falconer, Eric W. Ping, Rongfei Zhou, Richard D. Noble, Hans Funke
-
Patent number: 8901031Abstract: Novel brominated poly(2,6-diphenyl-1,4-phenylene oxide) compounds are synthesized and found to have improved carbon dioxide separation properties, including improved carbon dioxide permeability and improved carbon dioxide/nitrogen selectivity.Type: GrantFiled: May 11, 2007Date of Patent: December 2, 2014Assignee: University of WyomingInventors: Maciej Radosz, Youqing Shen
-
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
-
Patent number: 8888896Abstract: 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: August 28, 2014Date of Patent: November 18, 2014Assignee: Gundersen Lutheran Health SystemInventor: Corey Zarecki
-
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
-
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
-
Publication number: 20140318368Abstract: A process for separating a gaseous or liquid mixture by means of a separating device including a first volume (V1) and a second volume (V2) which are separated by a membrane (MS) which has selective permeability with respect to at least two components of said mixture, the process including the steps consisting in: a) fill up the first volume of the device with the mixture (Ml) to be separated; b) wait for a period of time (t2?t1) which is in excess of the permeation lag time, but is insufficient to reach a state of equilibrium, during which time a fraction of each component of said mixture passes from the first to the second volume of the device through the membrane; c) evacuate the first and the second volume of the device, as a result of which at least one first (R) and one second cut (P, P1, P2) of the mixture is obtained, having different molar compositions.Type: ApplicationFiled: November 20, 2012Publication date: October 30, 2014Applicants: UNIVERSITE DE LORRAINE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Eric Favre, Jean-Pierre Corriou, Christophe Castel, Lei Wang
-
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
-
Publication number: 20140311340Abstract: 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: ApplicationFiled: July 1, 2014Publication date: October 23, 2014Inventor: Donald Ray Snow, JR.
-
Patent number: 8858681Abstract: A patterned gas permeable venting material is affixed within a venting apparatus which has an opening. The venting material forms a liquid tight, gas permeable seal of the opening. The patterned material comprises a PTFE membrane of porosity less than 80% and with a surface indentation of depth greater than 12 microns.Type: GrantFiled: April 23, 2007Date of Patent: October 14, 2014Assignee: W. L. Gore & Associates, Inc.Inventor: Gary P. Harp
-
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
-
Patent number: 8852319Abstract: The invention is a process involving membrane-based gas separation for separating and recovering carbon dioxide emissions from combustion processes in partially concentrated form, and then transporting the carbon dioxide and using or storing it in a confined manner without concentrating it to high purity. The process of the invention involves building up the concentration of carbon dioxide in a gas flow loop between the combustion step and a membrane separation step. A portion of the carbon dioxide-enriched gas can then be withdrawn from this loop and transported, without the need to liquefy the gas or otherwise create a high-purity stream, to a destination where it is used or confined, preferably in an environmentally benign manner.Type: GrantFiled: September 13, 2010Date of Patent: October 7, 2014Assignee: Membrane Technology and Research, Inc.Inventors: Johannes G. Wijmans, Richard W. Baker, Timothy C. Merkel
-
Publication number: 20140290478Abstract: The present invention discloses high performance cross-linked polyimide asymmetric flat sheet membranes and a process of using such membranes. The cross-linked polyimide asymmetric flat sheet membranes have shown CO2 permeance higher than 80 GPU and CO2/CH4 selectivity higher than 20 at 50° C. under 6996 kPa of a feed gas with 10% CO2 and 90% CH4 for CO2/CH4 separation.Type: ApplicationFiled: March 27, 2013Publication date: October 2, 2014Applicant: UOP LLCInventors: Chunqing Liu, Zara Osman, Howie Q. Tran, Angela N. Troxell
-
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
-
Publication number: 20140283683Abstract: A fluid separation apparatus is described, including a casing and a separation module. The casing includes a mixed fluid inlet, a separated fluid outlet through which a selectively separated fluid is discharged, and a residual fluid outlet. The separation module has a set of serially arranged separation elements disposed therein and is insertable into the casing from an end of the casing. The separation module includes a first connection jig disposed between adjacent separation elements second connection jigs disposed at two ends of the set of serially arranged separation elements, and a coupling jig coupling the first and the second connection jigs to each other.Type: ApplicationFiled: October 28, 2011Publication date: September 25, 2014Applicant: JGC CORPORATIONInventors: Syuichi Oguro, Nobuhiro Yamada, Yasushi Fujimura
-
Patent number: 8840711Abstract: A modular element having a high-temperature stable main body, including at least one metallic or ceramic plate, which has at least one through-going aperture for the insertion of a ceramic capillary membrane and at least one potting in the form of a sufficiently gas-tight and high-temperature stable joint between the metallic or ceramic plate and the ceramic capillary membrane. The through-going aperture of the metallic or ceramic plate having an extension for accommodating the sufficiently gas-tight and high-temperature stable joint on at least one side of the metallic or ceramic plate.Type: GrantFiled: August 25, 2010Date of Patent: September 23, 2014Assignees: Thyssenkrupp Uhde GmbH, Borsig Process Heat Exchanger GmbHInventors: Steffen Schirrmeister, Bernd Langanke, Thomas Schiestel, Björn Hoting
-
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
-
Patent number: 8834604Abstract: A membrane for use in a high temperature gas processing system and method for making the same. The membrane includes a dense, gas impermeable layer and a first and second porous layer, wherein each of the first and second porous layers is a ceramic oxide material having a non-symmetrical load bearing skeleton of a plurality of pores having a graded porosity. Each porous layer provides a reduction of an oxygen partial pressure gradient across the dense layer and reduces resultant stresses in the dense layer that are small compared to its strength thereby improving long term mechanical durability of the dense layer.Type: GrantFiled: September 16, 2011Date of Patent: September 16, 2014Assignee: Volt Research, LLCInventors: Ajit Y. Sane, Thomas L. Cable
-
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
-
Patent number: 8828121Abstract: Disclosed herein is a process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of perfluorodioxolane monomers. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers, such as Teflon® AF, Hyflon® AD, and Cytop®.Type: GrantFiled: February 19, 2014Date of Patent: September 9, 2014Assignee: Membrane Technology and Research, Inc.Inventors: Zhenjie He, Timothy C. Merkel, Yoshiyuki Okamoto, Yasuhiro Koike
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Patent number: 8795417Abstract: A method of producing a composite oxygen ion membrane and a composite oxygen ion membrane in which a porous fuel oxidation layer and a dense separation layer and optionally, a porous surface exchange layer are formed on a porous support from mixtures of (Ln1-xAx)wCr1-yByO3-? and a doped zirconia. In the porous fuel oxidation layer and the optional porous surface exchange layer, A is Calcium and in the dense separation layer A is not Calcium and, preferably is Strontium. Preferred materials are (La0.8Ca0.2)0.95Cr0.5Mn0.5O3-? for the porous fuel oxidation and optional porous surface exchange layers and (La0.8Sr0.2)0.95Cr0.5Fe0.5O3-? for the dense separation layer. The use of such materials allows the membrane to sintered in air and without the use of pore formers to reduce membrane manufacturing costs. The use of materials, as described herein, for forming the porous layers have application for forming any type of porous structure, such as a catalyst support.Type: GrantFiled: October 4, 2012Date of Patent: August 5, 2014Assignee: Praxair Technology, Inc.Inventors: Gervase Maxwell Christie, Jonathan A. Lane
-
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
-
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
-
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
-
Patent number: 8771402Abstract: 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: GrantFiled: June 14, 2012Date of Patent: July 8, 2014Assignee: UT-Battelle, LLCInventors: Meng-Dawn Cheng, Steve L. Allman
-
Publication number: 20140183135Abstract: The invention is directed to a nanosieve composite membrane, a method for preparing a nanosieve composite membrane, a roll-to-roll apparatus for carrying out the method, and a method for separating a feed flow with particulate matter. The nanosieve composite of the invention comprises an inorganic nanosieve layer supported on a porous polymer membrane substrate and a metallic adhesion layer or underlayer between the inorganic nanosieve layer and the polymer substrate, wherein said polymer membrane comprises an inorganic coating such that the polymeric support is sandwiched between the inorganic coating and the inorganic sieve layer, and wherein said inorganic nanosieve layer has an average pore diameter as determined by scanning electron microscopy of 200 nm or less.Type: ApplicationFiled: April 26, 2012Publication date: July 3, 2014Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNOInventors: Sandeep Unnikrishnan, Edward Willem Albert Young
-
Publication number: 20140183133Abstract: Technologies are generally described for a gas filtration device including an array of parallel carbon nanotubes. The carbon nanotubes may extend between first and second substrates, and the ends of the carbon nanotubes may be embedded in the substrates and cut to expose openings at each end of the carbon nanotubes. The carbon nanotubes may be composed from a graphene membrane which may be perforated with a plurality of discrete pores of a selected size for enabling one or more molecules to pass through the pores. A fluid mixture including two or more molecules for filtering may be directed through the first openings of the array of nanotubes, and the fluid mixture may be filtered by enabling smaller molecules to pass through the discrete pores of the graphene membrane walls of the carbon nanotubes to produce in a filtrate fraction including the smaller molecules and a retentate fraction including larger molecules.Type: ApplicationFiled: December 4, 2012Publication date: July 3, 2014Inventors: Kraig Anderson, Angeie Sjong
-
Patent number: 8764889Abstract: 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: GrantFiled: December 27, 2012Date of Patent: July 1, 2014Assignee: NGK Insulators, Ltd.Inventors: Mariko Takagi, Kenichi Noda, Nobuhiko Mori, Masaaki Kawai, Aya Satoh
-
Patent number: 8764888Abstract: 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: August 22, 2013Date of Patent: July 1, 2014Assignee: Oridion Medical 1987 Ltd.Inventors: Amos Ophir, Eyal Cohen, David Dishon, Joshua Lewis Colman
-
Patent number: 8764881Abstract: A membrane suitable for separating a gas from a gas mixture comprising a non cross-linked PVAm having a molecular weight of at least Mw 100,000 carried on a support wherein after casting onto the support, said PVAm has been heated to a temperature in the range 50 to 150° C., e.g. 80 to 120° C.Type: GrantFiled: February 2, 2010Date of Patent: July 1, 2014Assignee: Norwegian University of Science and TechnologyInventors: Marius Sandru, Taek-Joong Kim, May-Britt Hägg
-
Patent number: 8764887Abstract: Embodiments of the invention relate to a method for preparing crystalline metal-organic frameworks (MOFs). The method includes the steps of providing an electrolyte solution in contact with a conductive surface, and applying a current or potential to the conductive surface in contact with the electrolyte solution. The electrolyte solution includes a protonated organic ligand, a metal ion, and a probase. Application of the reductive current or potential to the conductive surface produces the crystalline metal-organic framework (MOF) deposited on the conductive surface. The MOFs produced by the method may be incorporated into a gas separation membrane, a purification filter, and/or a sensor.Type: GrantFiled: April 4, 2012Date of Patent: July 1, 2014Assignee: Massachusetts Institute of TechnologyInventors: Mircea Dinca, Minyuan Li
-
Publication number: 20140175227Abstract: In an embodiment there is provided a fluid separation assembly. The assembly has a hollow fiber bundle with a plurality of hollow fiber membranes. The assembly further has a first tubesheet and a second tubesheet encapsulating respective ends of the hollow fiber bundle, wherein one of the tubesheets has a plurality of radial through openings formed in the tubesheet. The assembly further has a housing surrounding the hollow fiber bundle and the first and second tubesheets, the housing having a feed inlet port, a permeate outlet port, and a non-permeate outlet port. The feed gas, permeate gas, or non-permeate gas are introduced into or removed from the hollow fiber membranes via the plurality of radial through openings formed in the tubesheet, such that the radial through openings of the tubesheet intersect each or substantially each of the hollow fiber membranes.Type: ApplicationFiled: December 5, 2013Publication date: June 26, 2014Applicant: PoroGen CorporationInventor: Benjamin Bikson
-
Patent number: 8758488Abstract: Vents for containers include a perforated substrate portion (20) of polymer material over which is thermally bonded a gas permeable membrane (30). The thermal bond (31) is direct and adhesive-free so that there is no adhesive available for chemical attachment by materials within the containers (58) and no opportunity for an adhesive to interfere with or block perforations through the substrate.Type: GrantFiled: March 26, 1999Date of Patent: June 24, 2014Assignee: Nuclear Filter Technology, Inc.Inventor: Terry J. Wickland
-
Patent number: 8758489Abstract: A radial seal is described for use in a filtration system having annular elements. The rings or annuli fit in a groove in an outer surface of a seal plate. Each annulus has an outer diameter larger than the inner diameter of a cylindrical housing of the filtration system. A gap in the annulus has a width selected to enable the annular element to deform sufficiently to permit insertion of the at least one annulus into the cylindrical housing. Two or more annuli can be configured such that the gaps of the annuli are misaligned when both annuli are installed in the groove, thereby minimizing leakage in operation. A registration system includes a registration element that cooperates with a registration element of the other annulus to ensure misalignment of the gaps of the pair of annuli.Type: GrantFiled: June 10, 2013Date of Patent: June 24, 2014Assignee: Toray Industries, Inc.Inventors: Curtis J. Elwell, Frederick K. Lesan, Victor Verbeek, Peter F. Metcalfe
-
Patent number: 8758490Abstract: A method of forming a fluid separation filter for use in a fluid separation device includes aligning a series of fluid separation or drying fibers (102) and fixing them together using a self-adhesive and electrically conductive tape (116) or by weaving copper threads between them. The connected fibers then form a mat and a strip of potting sealant (112) may be added, if required, along the top and bottom of the fibers. The mat may then be rolled to form a bundle of fibers.Type: GrantFiled: August 2, 2010Date of Patent: June 24, 2014Assignee: Nano-Porous Solutions LimitedInventors: John Pearson, Caytlin Green
-
Patent number: 8753426Abstract: The invention describes a polymeric material comprising repeating units of Formulae I-III and methods of preparation. Novel polymeric materials, gas separation membranes and fluid component separation methods are also described.Type: GrantFiled: August 3, 2012Date of Patent: June 17, 2014Assignee: Air Products and Chemicals, Inc.Inventors: Shiying Zheng, Jeffrey Raymond Quay
-
Patent number: 8753425Abstract: A method of preparing a supported gas separation membrane, comprising: preparing crystalline seeds from a synthesis mixture comprising an aluminum source, a phosphorous source, a silicon source, at least one organic templating agent and water; applying the seeds to a porous support to produce a seeded porous support; contacting the seeded porous support with a synthesis gel under hydrothermal synthesis conditions to produce a coated porous support; and calcining the coated porous support is described. A supported gas separation membrane made by this method is also described.Type: GrantFiled: May 27, 2010Date of Patent: June 17, 2014Assignee: Shell Oil CompanyInventors: Brendan Dermot Murray, Paul Jason Williams
-
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
-
Patent number: 8747766Abstract: A hydrogen separation membrane comprising a palladium alloy that includes at least palladium, an added metal A, and an added metal B, the added metal A and the added metal B being two different metals other than palladium, each of the added metal A and the added metal B forming a complete solid solution with palladium, and the added metal A and the added metal B having a triple point in an equilibrium diagram and not forming an intermetallic compound. The hydrogen separation membrane exhibits excellent hydrogen permeability and durability.Type: GrantFiled: November 20, 2009Date of Patent: June 10, 2014Assignee: NGK Insulators, Ltd.Inventor: Kenichi Noda
-
Patent number: 8747521Abstract: Provided is a gas separation membrane having superior gas permeability, separation selectivity and mechanical properties. A gas separation membrane to separate at least one acid gas from a mix gas, comprising in this order: a first layer that is porous; a second layer that is a separation-active layer containing a compound having a molecular weight of 150,000 or less and capable of interacting with the acid gas; and a third layer having high gas permeability.Type: GrantFiled: February 10, 2011Date of Patent: June 10, 2014Assignee: FUJIFILM CorporationInventor: Satoshi Sano