Oxygen Permeates Barrier Patents (Class 95/54)
  • Patent number: 10525423
    Abstract: A nanofiltration membrane comprising a selective layer comprising or consisting of poly(amide-imide) cross-linked with polyallylamine is provided. A method of manufacturing a nanofiltration membrane and use of a nanofiltration membrane in a water softening process that is carried out at a low pressure of less than about 2 bar are also provided.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: January 7, 2020
    Assignees: Nanyang Technological University, Evoqua Water Technologies Pte. Ltd.
    Inventors: Rong Wang, Lei Shi, Laurentia Setiawan
  • Patent number: 10441922
    Abstract: A dual function composite oxygen transport membrane having a layered structure of mixed conducting oxygen transport materials on a first side of a porous substrate and a reforming catalyst layer on an opposing second side of the porous substrate. The layered structure of the mixed conducting oxygen transport materials contains an intermediate porous layer of mixed conducting oxygen transport materials formed on the porous substrate with a dense impervious layer of mixed conducting oxygen transport materials over the intermediate porous layer, and an optional surface exchange layer of mixed conducting oxygen transport materials over the dense impervious layer. The layered structure and the reforming catalyst layer are formed in separate steps.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 15, 2019
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Jiefeng Lin, Pawel Plonczak, Sean M. Kelly, Uttam R. Doraswami, Jonathan A. Lane
  • Patent number: 10202946
    Abstract: The power turbine system includes two power turbines communicating with an ion transport membrane (ITM) reactor. Heavy liquid fuel is atomized and burned within the reactor to drive the first turbine, with the first turbine producing useful power. Exhaust from the first turbine is recycled back into the reactor. The reactor includes a series of concentric cylindrical ion transport membranes that separate atmospheric and exhaust gases into suitable components for combustion therein, with at least some of the gases being “cracked” to alter their molecular structure for further combustion to power the second turbine. The second turbine drives a compressor to supply air to the reactor. At least one of the ITMs precludes atmospheric nitrogen from the combustion processes, with the resulting exhaust including pure water and carbon dioxide. The carbon dioxide is either recycled into the reactor to facilitate fuel atomization, or compressed for sequestration.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 12, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Medhat A. Nemitallah, Mohamed A. Habib
  • Patent number: 10158138
    Abstract: A fuel cell system is provided. The fuel cell system includes a source of fuel, and a fuel desulfurization system fluidly coupled to the source of fuel to receive the fuel in a gaseous phase. The fuel desulfurization system includes a fuel condenser that condenses at least a portion of the fuel from the gaseous phase to a liquid phase. The fuel cell system includes a reformer fluidly coupled to the fuel desulfurization system that receives the fuel from the fuel desulfurization system in the liquid phase to generate hydrogen enriched fuel and a fuel cell stack fluidly coupled to the reformer to receive the hydrogen enriched fuel.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: December 18, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Daguang Zheng, Dacong Weng
  • Patent number: 10018352
    Abstract: A fire tube boiler system including a plurality of oxygen transport reactors that heats a working fluid. Each oxygen transport reactor has a first inner tube with an ion transport membrane that receives air from a first supply line, extracts oxygen from the air, and evacuate oxygen depleted air through a first exhaust line, a second inner tube that surrounds the first inner tube that receives the oxygen from the ion transport membrane and a mixture of fuel and carbon dioxide from a second supply line and produces a oxy-combustion, and an peripheral tube that surrounds the second inner tube and evacuates the exhaust gases produced by the oxy-combustion and transfer heat from exhaust gases to the working fluid and the ion transport membrane.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 10, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohamed Abdel-Aziz Habib, Rached Ben-Mansour
  • Patent number: 9901866
    Abstract: The invention relates to a membrane separation process for energy-efficient generation of oxygen from fresh air. In the process, mixed conducting membranes in vacuum operation are used, the fresh air is discharged as waste air after separation of the oxygen, at least 85% of the thermal energy required for heating the fresh air is acquired by utilizing the waste heat of the waste air and/or of the obtained oxygen, the rest of the heating of the fresh air being realized through external energy supply, and a ratio of fresh air to generated oxygen in normal operation is adjusted to a range of from 6:1 to 25:1.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: February 27, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventor: Ralf Kriegel
  • Patent number: 9604855
    Abstract: A water filtration module (10) is made of hollow fibers for filtration from the outside to the inside of the fibers, wherein the fibers are arranged inside a casing (11) made of multiple elements (20). The module (10) and at least one element (20) include elements working together, which are designed to enable the element (20) to be mounted in the module (10) in a removable manner.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: March 28, 2017
    Assignee: POLYEM
    Inventors: Jean-Michel Espenan, Franc Saux
  • Patent number: 9561477
    Abstract: A method of making a microporous crystal material, comprising: a. forming a mixture comprising NaOH, water, and one or more of an aluminum source, a silicon source, and a phosphate source, whereupon the mixture forms a gel; b. heating the gel for a first time period, whereupon a first volume of water is removed from the gel and micoroporous crystal nuclei form, the nuclei having a framework; and c.(if a membrane is to be formed) applying the gel to a solid support seeded with microporous crystals having a framework that is the same as the framework of the nuclei; d. heating the gel for a second time period. during which a second volume of water is added to the gel; wherein the rate of addition of the second volume of water is between about 0.5 and about 2.0 fold the rate of removal of the first volume of water.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: February 7, 2017
    Assignee: Ohio State Innovation Foundation
    Inventors: Prabir Dutta, Michael Severance, Chenhu Sun
  • Patent number: 9492603
    Abstract: An artificial placenta oxygenating device for use with an infant is provided. The device comprises a first layer comprising a gas permeable membrane; and a second layer comprising a vascular network that permits circulation of fluid therethrough, wherein a portion of the gas permeable membrane is attached to and covers the vascular network, wherein the vascular network comprises an inlet that permits fluid flow into the vascular network and an outlet that permits fluid to flow out of the vascular network and wherein the inlet and outlet are positioned so that fluid flows through the vascular network and in contact with the gas permeable membrane to permit gas exchange to occur. Assemblies comprising a plurality of single artificial placenta devices is also provided.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: November 15, 2016
    Assignee: McMaster University
    Inventors: Christoph Fusch, Leslie Berry, Anthony Chan, Niels Rochow, Ponnambalam (Ravi) Selvaganapathy, John Brash, Gerhard Fusch
  • Patent number: 9446347
    Abstract: Disclosed are methods of obtaining carbon dioxide from a CO2-containing gas mixture. The methods combine the benefits of gas membrane separation with cryogenic temperatures.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 20, 2016
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: David J. Hasse, Sudhir S. Kulkarni, Edgar S. Sanders, Jr., Jean-Pierre Tranier, Paul Terrien
  • Patent number: 9044703
    Abstract: There is provided a process for effecting permeation of at least an operative material component of an operative mixture from a higher pressure space, through a membrane, and into a lower pressure space, wherein the higher pressure space is disposed in mass transfer communication with the lower pressure space through the membrane.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: June 2, 2015
    Assignee: IMTEX MEMBRANES CORP.
    Inventors: Xianshe Feng, Darren F. Lawless
  • Patent number: 9044704
    Abstract: The present invention is a method of integrating oxygen production with blast furnace operation. A heated air stream is introduced to an ion transfer membrane separator, producing a permeate and a retentate. The permeate and the motive stream are introduced into an ejector jet pump producing an oxygen enriched stream. The oxygen enriched stream is introduced into blast furnace. In another embodiment of the present invention, the permeate and a steam motive stream are introduced into an ejector jet pump. Heated air inlet stream is introduced into a cascading series of ion transfer membrane separators, producing a series of permeate streams and a series of retentate streams wherein each retentate stream acts as the input stream for the subsequent ion transfer membrane separator. Thereby producing a series of oxygen enriched streams which are combined and introduced into blast furnace.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 2, 2015
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Bhadra S. Grover, Kenneth Kaiser, Michael Garry Keith Grant, Wei Huang
  • Patent number: 9034083
    Abstract: An array of hollow fibers including a plurality of hollow fibers of a predetermined diameter configured to receive a gas having oxygen therein and transfer the oxygen to a fluid and/or transfer carbon dioxide in the fluid to a gas. The array is configured in a predetermined pattern having a predetermined packing density that is a fraction of a total cross-sectional area of the array occupied by the hollow fibers.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: May 19, 2015
    Assignee: Vivonics, Inc.
    Inventors: Anna M Galea, Kristen LeRoy, Nicholas Vitale
  • Patent number: 9028588
    Abstract: Disclosed is a filtration system and method that uses a corona discharge grid and a series of electrostatic grids to filter ambient particles. The filtration system eliminates, or greatly reduces, the pressure drop across the associated filter media.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 12, 2015
    Inventor: Donald H. Hess
  • Patent number: 9023133
    Abstract: A vacuum pumping arrangement is described for pumping a gas stream containing hydrogen or other hydrogen-containing gas. The arrangement comprises a pumping mechanism for receiving the gas stream and exhausting a pumped gas stream at a sub-atmospheric pressure, and, downstream from the pumping mechanism, an ionic conducting membrane having one side exposed to the pumped gas stream and another side exposed to oxygen or other source of oxygen. In one example, the membrane is permeable to hydrogen, which permeates across the membrane to react with oxygen adsorbed on the other surface of the membrane. In another example, the membrane is permeable to oxygen anions, which permeate across the membrane to react with hydrogen within the gas stream.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: May 5, 2015
    Assignee: Edwards Limited
    Inventor: Robert Bruce Grant
  • Patent number: 9005334
    Abstract: 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: Grant
    Filed: March 23, 2011
    Date of Patent: April 14, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Satoru Furuyama, Yozo Nagai, Junichi Moriyama
  • Patent number: 8999039
    Abstract: The invention relates to membranes, in particular oxygen separation membranes, which enable improved gas separation conditions with respect to cost, price, size, weight, and noise. The membrane, in particular oxygen separation membrane, according to the invention comprises a support layer (28) and a separation layer (30), wherein the separation layer (30) is permeable for oxygen and has a sorptive affinity for at least one other gas, in particular for nitrogen, wherein the membrane (20) is designed such that substantially only the separation layer (30) is heatable by a heating device.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 7, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Rainer Hilbig, Joachim Opitz
  • Patent number: 8979983
    Abstract: An air separation module has an inlet for receiving a source of air. The inlet communicates with an inlet manifold and the inlet manifold communicates with a plurality of canisters. The canisters are provided with hollow fibers constructed such that oxygen can permeate the fiber and nitrogen passes through the fiber. A jacket manifold surrounds the canisters and the jacket manifold receives oxygen that has permeated the fibers. The canisters extend to a downstream end, and to an outlet. The jacket manifold communicates with a jacket outlet manifold and an outlet for separated oxygen. The outlet for the jacket manifold is at a downstream end of the canisters.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 17, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Vanwijak Eowsakul
  • Patent number: 8974574
    Abstract: There is provided a process for effecting permeation of at least an operative material component of an operative mixture from a higher pressure space, through a membrane, and into a lower pressure space, wherein the higher pressure space is disposed in mass transfer communication with the lower pressure space through the membrane.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 10, 2015
    Assignee: Imtex Membranes Corp.
    Inventors: Xianshe Feng, Darren F. Lawless
  • Patent number: 8956154
    Abstract: Methods and systems for conversion of a carbon containing fuel to CO2 and H2O. An air stream is fed to a first ion transport membrane unit obtaining a pure oxygen stream from a permeate side and an air stream with a reduced oxygen content from a retentate side. The air stream with a reduced oxygen content is fed to a second ion transport membrane unit and a gaseous first carbon containing fuel is fed to a permeate side of the second ion transport membrane. The first carbon containing fuel is reacted with oxygen transported through the second ion transport membrane forming an at least partially combusted first fuel. The at least partially combusted first fuel, at least a part of the pure oxygen stream and optionally a second carbon containing fuel is fed to a combustion chamber for combustion. An exhaust stream comprising essentially CO2 and H2O is obtained.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: February 17, 2015
    Assignee: Nebb Engineering AS
    Inventor: Martin Siljan
  • Patent number: 8926733
    Abstract: A method for preparing a polymeric material includes: providing a polymeric matrix having at least one polymer and at least one porogen; and degrading the at least one porogen at a temperature T?1.1 Tg, where Tg is a glass transition temperature of the polymeric matrix. The degrading step includes exposing the polymeric matrix to thermal degradation, chemical degradation, electrical degradation and/or radiation degradation, wherein the polymeric material has a permeability at least 1.2 times a permeability of the polymeric matrix for a gas, and a selectivity of the polymeric material is at least 0.35 times a selectivity of the polymeric matrix for a gas pair. The method preferably provides gas separation membranes that exceed Robeson's upper bound relationship for at least one gas separation pair. Novel polymeric materials, gas separation membranes and fluid component separation methods are also described.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 6, 2015
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Shiying Zheng, Lloyd M. Robeson, M. Keith Murphy, Jeffrey R. Quay
  • Publication number: 20150000523
    Abstract: An aircraft fuel tank flammability reduction method includes feeding pressurized air into an air separation module containing an oxygen separation membrane. The method includes contacting the separation membrane with the air feed, permeating oxygen from the air feed through the separation membrane, and producing nitrogen-enriched air from the air separation module as a result of removing oxygen from the air feed. The NEA from the air separation module is substantially cooled in a NEA flow heat exchanger and the substantially cooled, nitrogen-enriched air is fed into the fuel tank on board the aircraft. An aircraft fuel tank flammability reduction system includes a NEA flow heat exchanger configured to cool substantially the nitrogen-enriched air from the air separation module and a fuel tank on board the aircraft configured to receive the cooled nitrogen-enriched air.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 1, 2015
    Inventors: Ivana Jojic, Donald R. Snow, JR., Alan Grim, Colin W Hart
  • Publication number: 20150005468
    Abstract: The present invention generally relates to high permeability, UV cross-linkable copolyimide polymers and membranes for gas, vapor, and liquid separations, as well as methods for making and using these membranes. The invention provides a process for separating at least one gas from a mixture of gases using the high permeability copolyimide membrane or the UV cross-linked copolyimide membrane, the process comprising: (a) providing a high permeability copolyimide membrane or a UV cross-linked copolyimide membrane which is permeable to said at least one gas; (b) contacting the mixture on one side of the high permeability copolyimide membrane or the UV cross-linked copolyimide membrane to cause said at least one gas to permeate the membrane; and (c) removing from the opposite side of the membrane a permeate gas composition comprising a portion of said at least one gas which permeated said membrane.
    Type: Application
    Filed: May 14, 2014
    Publication date: January 1, 2015
    Applicant: UOP LLC
    Inventors: Zara Osman, Chunqing Liu, Angela N. Troxell, Carl W. Liskey
  • Patent number: 8920539
    Abstract: The invention relates to a Method of generating oxygen and nitric oxide. The method comprises the steps of: guiding an oxygen comprising gas to a primary side of a dense membrane (42), heating the membrane (42) to a temperature at which it is permeable for oxygen, creating a pressure difference between the primary side of the membrane (42) and a secondary side of the membrane (42), wherein a stream of oxygen is generated at the secondary side of the membrane (42) and a stream of oxygen depleted gas is generated at the primary side of the membrane (42). The method according to the invention further comprises the steps of: providing a flow of nitrous oxide comprising gas and heating the nitrous oxide comprising gas to a temperature at which nitric oxide is generated. Thereby, according to the invention, heat generated in the process of operating the membrane is used.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: December 30, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Rainer Hilbig, Achim Gerhard Rolf Koerber, Claudia Hannelore Igney
  • Patent number: 8906137
    Abstract: 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: Grant
    Filed: October 18, 2011
    Date of Patent: December 9, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Rainer Hilbig, Mareike Klee, Wilhelmus Cornelis Keur
  • Patent number: 8882886
    Abstract: 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: Grant
    Filed: October 31, 2012
    Date of Patent: November 11, 2014
    Assignee: The Boeing Company
    Inventors: Barbara J Evosevich, Ivana Jojic
  • Patent number: 8876946
    Abstract: A conditioner for conditioning fuel passing therethrough includes a deoxygenator having a body in which oxygen is removed from the fuel, and a heat exchanger attaching directly to the body for moderating a temperature of the fuel.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: November 4, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Peter L. Jalbert
  • Patent number: 8876943
    Abstract: Apparatus for changing the concentration of a selected gas in a liquid, the apparatus comprising a flow chamber through which the liquid is passed and which comprises a wall comprising a planar separation membrane, the separation membrane being substantially impermeable to the liquid and permeable to the selected gas, characterized in that the separation member extends beyond the flow chamber and provides a seal between components of the apparatus. The apparatus is particularly useful for degassing liquids, for example HPLC eluents and analysis samples.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 4, 2014
    Assignee: Random Technologies LLC
    Inventors: Amos Gottlieb, William Kilbridge
  • Patent number: 8871010
    Abstract: 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: Grant
    Filed: March 15, 2012
    Date of Patent: October 28, 2014
    Inventors: Malko Gindrat, Rajiv J. Damani
  • Publication number: 20140290478
    Abstract: 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: Application
    Filed: March 27, 2013
    Publication date: October 2, 2014
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Zara Osman, Howie Q. Tran, Angela N. Troxell
  • Patent number: 8845784
    Abstract: 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: Grant
    Filed: January 12, 2011
    Date of Patent: September 30, 2014
    Assignee: University of South Carolina
    Inventor: Kevin Huang
  • Patent number: 8840711
    Abstract: 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: Grant
    Filed: August 25, 2010
    Date of Patent: September 23, 2014
    Assignees: Thyssenkrupp Uhde GmbH, Borsig Process Heat Exchanger GmbH
    Inventors: Steffen Schirrmeister, Bernd Langanke, Thomas Schiestel, Björn Hoting
  • Patent number: 8834604
    Abstract: 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: Grant
    Filed: September 16, 2011
    Date of Patent: September 16, 2014
    Assignee: Volt Research, LLC
    Inventors: Ajit Y. Sane, Thomas L. Cable
  • Patent number: 8820312
    Abstract: The oxygen transport reactor-based oven is an oven for heating articles, such as bread, using oxygen transport reactor-based combustion in order to recycle carbon dioxide, rather than releasing the carbon dioxide into the environment. The oven includes an upper furnace chamber having a plurality of oxygen transport reactors disposed therein. A mixture of fuel and gaseous carbon dioxide is delivered to the interior of each oxygen transport reactor. Pressurized air is then delivered to the upper furnace chamber, so that oxygen from the pressurized air is driven through an ion transport membrane of each oxygen transport reactor to combust with the fuel. This combustion produces carbon dioxide, water vapor and heat. The generated heat is used to heat the articles to be heated, which are received within a heating chamber positioned beneath the upper furnace chamber.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 2, 2014
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohamed Abdel-Aziz Habib, Esmail M. A. Mokheimer
  • Patent number: 8814982
    Abstract: 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: Grant
    Filed: October 18, 2012
    Date of Patent: August 26, 2014
    Assignee: UOP LLC
    Inventors: Chunqing Liu, Mark E. Schott, Travis C. Bowen
  • Patent number: 8795417
    Abstract: 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: Grant
    Filed: October 4, 2012
    Date of Patent: August 5, 2014
    Assignee: Praxair Technology, Inc.
    Inventors: Gervase Maxwell Christie, Jonathan A. Lane
  • Patent number: 8778054
    Abstract: 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: Grant
    Filed: April 3, 2010
    Date of Patent: July 15, 2014
    Assignee: Forschungszentrum Juelich GmbH
    Inventors: Jewgeni Nazarko, Ernst Riensche, Reinhard Menzer, Wilhelm Albert Meulenberg, Stefan Baumann
  • Patent number: 8771404
    Abstract: A composite hollow ceramic fiber includes a porous hollow core supporting a thin, dense sheath. The non-gas-tight core comprises a first ceramic material and an interconnecting network of pores. The gas-tight sheath comprises a second ceramic material. The fiber is made by extruding a core suspension of particles of the first ceramic material, a polymeric binder, and a solvent and a sheath suspension of particles of the second ceramic material, a polymeric binder and a solvent, respectively, from a spinnerette and coagulating the nascent hollow fiber to effect phase inversion of the polymeric binders. The resultant green fiber is sintered in a two step process. First, the binders are burned off. Second, the sheath is densified and the second ceramic material is sintered without fully sintering the first ceramic material. The first ceramic material of the core suspension has a median particle size greater than that of the second ceramic material of the sheath suspension.
    Type: Grant
    Filed: July 31, 2011
    Date of Patent: July 8, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Tao Li, Taekyu Kang
  • Patent number: 8758491
    Abstract: A gas separation membrane comprises aromatic polyimide polymers that comprise a plurality of repeating units of formula (I) wherein X1 and Ar are herein defined.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 24, 2014
    Assignee: Honeywell International Inc.
    Inventors: Grace Guo, Stephen Yates, Zhongxi Huang, Jeffrey Han, Mengshi Lu
  • Patent number: 8753426
    Abstract: 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: Grant
    Filed: August 3, 2012
    Date of Patent: June 17, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Shiying Zheng, Jeffrey Raymond Quay
  • Patent number: 8747525
    Abstract: A composite hollow ceramic fiber includes a porous hollow core supporting a thin, dense sheath. The non-gas-tight core comprises a first ceramic compound and an interconnecting network of pores. The gas-tight sheath comprises a second ceramic compound. The fiber is made by extruding first and second suspensions of the first and second ceramic compounds in polymeric binders and solvent from a spinnerette and coagulating the nascent hollow fiber to effect phase inversion of the polymeric binders. The resultant green fiber is sintered in a two step process. First, the binder is burned off. Second, the sheath is densified and the second ceramic compound is sinter without fully sintering the first ceramic compound. The first ceramic compound has a melting point higher than that of the second ceramic compound.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: June 10, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Dean W. Kratzer, Tao Li, Madhava R. Kosuri
  • Publication number: 20140150646
    Abstract: The present invention generally relates to gas separation membranes and, in particular, to high selectivity fluorinated ethylene-propylene polymer-comprising polymeric blend membranes for gas separations. The polymeric blend membrane comprises a fluorinated ethylene-propylene polymer and a second polymer different from the fluorinated ethylene-propylene polymer. The fluorinated ethylene-propylene polymers in the current invention are copolymers comprising 10 to 99 mol % 2,3,3,3-tetrafluoropropene-based structural units and 1 to 90 mol % vinylidene fluoride-based structural units. The second polymer different from the fluorinated ethylene-propylene polymer is selected from a low cost, easily processable glassy polymer.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Zara Osman, Changqing Lu, Andrew J. Poss, Rajiv R. Singh
  • Patent number: 8741029
    Abstract: A fuel deoxygenation system includes an oxygen permeable membrane having a porous membrane and an oleophobic layer. The porous membrane has pores that create a passage extending from a first side to an opposite second side of the porous membrane. The pores have an average pore diameter less than or equal to about 0.06 microns. The oleophobic layer and the porous membrane allow oxygen to cross the oxygen permeable membrane but substantially prevent fuel from crossing the oxygen permeable membrane. A method for removing dissolved oxygen from a fuel includes delivering fuel to an oxygen permeable membrane and removing oxygen from the fuel using the oxygen permeable membrane. A method for modifying a surface of a porous membrane includes depositing an oleophobic treatment agent on the porous membrane, removing solvent and heating the porous membrane to form an oleophobic layer on the porous membrane.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: June 3, 2014
    Assignee: United Technologies Corporation
    Inventors: Haralambos Cordatos, Louis J. Spadaccini, Thomas G. Tillman
  • Patent number: 8741031
    Abstract: A composite hollow ceramic fiber includes a porous hollow core supporting a thin, dense sheath. The non-gas-tight core comprises a first ceramic material and an interconnecting network of pores. The gas-tight sheath comprises a second ceramic material. The fiber is made by extruding core and sheath suspensions from a spinnerette. The core suspension includes particles of the first ceramic material, a polymeric binder, a solvent, and a pore former material insoluble in the solvent. The sheath suspension includes particles of the second ceramic material, a polymeric binder and a solvent. The nascent hollow fiber is coagulated in a coagulant bath to effect phase inversion of the polymeric binders. The resultant green fiber is sintered in a two step process. First, the binders and pore former material are burned off. Second, the sheath is densified and the second ceramic material is sintered without fully sintering the core.
    Type: Grant
    Filed: July 31, 2011
    Date of Patent: June 3, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Madhava R. Kosuri, Dean W. Kratzer
  • Patent number: 8734568
    Abstract: The present invention relates to an asymmetric hollow fiber membrane for gas separation made of a soluble aromatic polyimide, wherein an orientation index is 1.3 or less, a separation coefficient ?(P?O2/P?N2) as a permeation rate ratio of oxygen gas/nitrogen gas at 40° C. is 5.3 or more, and a tensile fracture elongation is 15% or more.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 27, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Hiroki Hisamori, Tatsuya Hayashi, Seiji Morihashi, Tomonori Kanougi
  • Patent number: 8734573
    Abstract: An object is to provide a vent plug having a structure in which an air-permeable membrane is unlikely to be damaged. More specifically, a vent plug is produced, which includes: a cylindrical member 1 having a through-hole 1a; a support 2 connected to the cylindrical member 1 so as to be across the through-hole 1a; and an air-permeable membrane 3 circumferentially attached to the cylindrical member 1, wherein the air-permeable membrane 3 is held on the support 2 and a convex portion 3a that follows the shape of the support 2 is formed on the air-permeable membrane 3.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: May 27, 2014
    Assignee: W. L. Gore & Associates, Co., Ltd.
    Inventors: Masashi Ono, Hiroshi Manabe
  • Patent number: 8734567
    Abstract: 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: Grant
    Filed: April 29, 2013
    Date of Patent: May 27, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventor: Shabbir Husain
  • Publication number: 20140137735
    Abstract: The disclosure relates generally to a gas separation membrane and a gas separation method in which at least one type of gas is separated and recovered from a gas mixture, using the gas separation membrane. The gas separation membrane is asymmetric and hollow and made of a polyimide material. The method of the invention provides a practical, high-performance technique for gas separation.
    Type: Application
    Filed: December 28, 2012
    Publication date: May 22, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Dhaval Ajit Bhandari, Kristi Jean Narang, Kimberly Ann Polishchuk
  • Publication number: 20140138317
    Abstract: The present invention generally relates to gas separation membranes and, in particular, to high selectivity fluorinated ethylene-propylene polymer-comprising polymeric blend membranes for gas separations. The polymeric blend membrane comprises a fluorinated ethylene-propylene polymer and a second polymer different from the fluorinated ethylene-propylene polymer. The fluorinated ethylene-propylene polymers in the current invention are copolymers comprising 10 to 99 mol % 2,3,3,3-tetrafluoropropene-based structural units and 1 to 90 mol % vinylidene fluoride-based structural units. The second polymer different from the fluorinated ethylene-propylene polymer is selected from a low cost, easily processable glassy polymer.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Zara Osman, Changqing Lu, Andrew J. Poss, Rajiv R. Singh
  • Publication number: 20140137734
    Abstract: The present invention discloses new types of poly(amidoamine) (PAMAM) dendrimer-cross-linked polyimide membranes and methods for making and using these membranes. The membranes are prepared by cross-linking of asymmetric aromatic polyimide membranes using a PAMAM dendrimer as the cross-linking agent. The PAMAM-cross-linked polyimide membranes showed significantly improved selectivities for CO2/CH4 compared to a comparable uncrosslinked polyimide membrane. For example, PAMAM 0.0 dendrimer-cross-linked asymmetric flat sheet poly(3,3?,4,4?-diphenylsulfone tetracarboxylic dianhydride-3,3?,5,5?-tetramethyl-4,4?-methylene dianiline) (DSDA-TMMDA) polyimide membrane showed CO2 permeance of 135.2 A.U. and CO2/CH4 selectivity of 20.3. However, the un-cross-linked DSDA-TMMDA asymmetric flat sheet membrane showed much lower CO2/CH4 selectivity (16.5) and higher CO2 permeance (230.8 GPU).
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Howie Q. Tran