Carbon Dioxide Or Carbon Monoxide Permeates Barrier Patents (Class 95/51)
  • Patent number: 10717041
    Abstract: The present disclosure describes a process for separating at least a first gas component and a second gas component by contacting a gas stream comprising the first and second gas components with a carbon molecular sieve (CMS) membrane under aggressive gas separation conditions in which the partial pressure of the selectively sorbed gas component in the gas stream is high. Despite the high partial pressure of the sorbed gas component, the selectivity of the carbon molecular sieve membrane is not substantially reduced by plasticization or saturation. In some embodiments, the aggressive gas separation process may include contacting a gas stream at supercritical conditions with a CMS membrane to separate at least first and second gas components. The process may be useful for, among other things, the separation of CO2 from a natural gas stream.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 21, 2020
    Assignees: SHELL OIL COMPANY, GEORGIA TECH RESEARCH CORPORATION
    Inventors: Chen Zhang, William John Koros, Joseph Marshall Mayne, Paul Jason Williams
  • Patent number: 10688434
    Abstract: The gas separation method is executed under a condition in which a partial pressure of a first gas (G1) in a feed gas that contains at least mutually different gases being the first gas (G1) and a second gas (G2) becomes less than or equal to a total pressure of a permeate-side space (S2) of a gas separation membrane (30). The gas separation method includes a step of causing flow of a sweep gas that contains at least a third gas (G3) being a different gas from the first gas (G1) and the second gas (G2) into the permeate-side space (S2) of the gas separation membrane (30) while supplying a feed gas to a feed-side space (S1) of the gas separation membrane (30). The permeation rate of the first gas (G1) in the gas separation membrane (30) is greater than the permeation rate respectively of the second gas (G2) and the third gas (G3).
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 23, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Kenichi Noda, Takeshi Hagio
  • Patent number: 10669486
    Abstract: The Fischer-Tropsch process can be used for the conversion of hydrocarbonaceous feed stocks into normally liquid and/or solid hydrocarbons (i.e. measured at 0° C., 1 bar). The feed stock (e.g. natural gas, associated gas, coal-bed methane, residual oil fractions, biomass and/or coal) is converted in a first step into a mixture of hydrogen and carbon monoxide. This mixture is often referred to as synthesis gas or syngas. The present invention relates to process for preparing a paraffin product from a carbonaceous feedstock and a system for preparing a paraffin product from a carbonaceous feedstock.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 2, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Gerald Sprachmann, Paul Jason Williams, Mahesh Venkataraman Iyer
  • Patent number: 10576414
    Abstract: The gas separation method is executed under a condition in which a partial pressure of a first gas (G1) in a feed gas that contains at least mutually different gases being the first gas (G1), a second gas (G2) and a third gas (G3) becomes less than or equal to the total pressure of a permeate-side space (S2) of a gas separation membrane (30). The gas separation method includes a step of causing flow of a sweep gas that contains at least the third gas (G3) into the permeate-side space (S2) of the gas separation membrane (30) while supplying a feed gas to a feed-side space (S1) of the gas separation membrane (30). The permeation rate of the first gas (G1) in the gas separation membrane (30) is greater than the permeation rate of the second gas (G2).
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: March 3, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Kenichi Noda, Takeshi Hagio
  • Patent number: 10569217
    Abstract: The invention relates to a process for recovering methane from digester biogas or landfill gas. More specifically, the invention pertains to biomethane production that substantially removes carbon dioxide from a digester biogas or landfill gas using first, second, and third purification stages each comprising one or more membranes selective for carbon dioxide over methane. A retentate from the first stage is separated by the one more membranes of the second stage into a second state retentate, forming a biomethane product gas. A permeate from the first stage is separated by the one or more membranes of the third stage into a third stage retentate and a third stage permeate. Recovery of methane from the biogas is boosted by feeding the third stage retentate to the first purification stage. The recovery may be optionally further boosted by compressing the second stage permeate with the biogas at a main compressor.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: February 25, 2020
    Assignee: Air Liquide Advanced Technologies U.S. LLC
    Inventor: Michael J. Mitariten
  • Patent number: 10537849
    Abstract: A method for treating a crude natural gas feed stream comprising methane and having a first carbon dioxide concentration, said method comprising the steps of: subjecting the crude natural gas feed stream to a separation process to provide: a purified natural gas stream having a second carbon dioxide content which is lower than the first carbon dioxide concentration in said crude natural gas stream; and, a carbon dioxide stream comprising carbon dioxide as the major component and methane; recovering the purified natural gas steam; optionally mixing the carbon dioxide stream with make-up methane and/or make-up air; passing the carbon dioxide stream and optional make-up methane or air through a heat exchanger to raise the temperature of the stream to the desired inlet temperature T1 of an oxidation reactor; optionally mixing the carbon dioxide stream with make-up methane and/or make-up air; passing the heated stream from step (d) and any optional make-up methane and/or air to the oxidation reactor containing an
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 21, 2020
    Assignee: Johnson Matthey Davy Technologies Limited
    Inventors: John Swinney, Simon Nicholas Tilley, David J. Watson
  • Patent number: 10478786
    Abstract: A gas separation membrane has a gas separation layer containing a poly(benzoxazole-imide) compound in which the poly(benzoxazole-imide) compound having structural units represented by General formulae (I) and (II), or structural units represented by General formulae (I), (II) and (III) satisfies a specific molar quantity condition. In the formulae, X and Y each represent a single bond or a specific divalent linking group; L represents a specific divalent linking group including a phenylene group; and R represents a specific group. A gas separation module and a gas separation method use the gas separation membrane. A gas separation apparatus includes the gas separation module.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: November 19, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Koji Hironaka, Keisuke Kodama, Satoshi Sano
  • Patent number: 10429067
    Abstract: A system and method for recycling flare gas back to a processing facility that selectively employs different numbers of ejector legs depending on the flare gas flowrate. The ejector legs include ejectors piped in parallel, each ejector has a flare gas inlet and a motive fluid inlet. Valves are disposed in piping upstream of the flare gas and motive fluid inlets on the ejectors, and that are selectively opened or closed to allow flow through the ejectors. The flowrate of the flare gas is monitored and distributed to a controller, which is programmed to calculate the required number of ejector legs to accommodate the amount of flare gas. The controller is also programmed to direct signals to actuators attached to the valves, that open or close the valves, to change the capacity of the ejector legs so they can handle changing flowrates of the flare gas.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 1, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Samusideen Adewale Salu, Mohamed A. Soliman, Nisar Ahmad K. Ansari
  • Patent number: 10335743
    Abstract: A composite membrane including an organic polymer matrix and a plurality of porous inorganic particles is disclosed, wherein each of the porous inorganic particles has a plurality of pores arranged while forming a channel in a predetermined direction, and wherein an average length of the porous inorganic particles in a direction parallel to the channel is less than three times the average maximum length of the porous inorganic particles in the direction perpendicular to the channel.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: July 2, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boreum Jeong, Sung Soo Han, Soon Chul Kwon
  • Patent number: 10336956
    Abstract: A natural-gas purification apparatus includes: a compressor that adjusts the pressure of natural gas; a cooling unit that liquefies and separates a part of natural-gas liquid by cooling the natural gas after the pressure adjustment by the compressor; a heating unit that heats the natural gas after the separation of the part of the natural-gas liquid by the cooling unit; carbon-dioxide separation units that are arranged in series and separate carbon dioxide from the natural gas heated by the heating unit through carbon-dioxide separation membranes; and a thermostatic chamber that adjusts the temperature of at least the carbon-dioxide separation unit disposed at the most downstream side among the carbon-dioxide separation units.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: July 2, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Wataru Matsubara, Masayuki Eda, Shintaro Honjo, Susumu Okino, Hiromi Nakatani, Masaki Yushima
  • Patent number: 10265655
    Abstract: The present invention involves the use of a two-step membrane system for gas separations. In this two-step membrane system, the membrane system comprises high selectivity and high permeance membranes. The two-step membrane system includes a first membrane section, a second membrane section and an ejector configured to increase the pressure of a lower permeate using the energy from a higher permeate gas pressure. The process provides increase in product recovery and product purity of the product gases. It can also save the cost compared to the system using compressors and external energy to drive the separation of gases.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 23, 2019
    Inventors: Manu G. R. Van Leuvenhaege, Charles-Yves Janssens
  • Patent number: 10047310
    Abstract: The present invention provides a method for separating high purity methane gas from biogas, which comprises the steps of: compressing and cooling biogas (step 1); and separating carbon dioxide by introducing the biogas compressed and cooled in step 1 into a four-stage polymer separation membrane system in which the residue stream of the first polymer separation membrane is connected to the second polymer separation membrane, the residue stream of the second polymer separation membrane is connected to the third polymer separation membrane, and the permeate stream of the second polymer separation membrane is connected to the fourth polymer separation membrane (step 2).
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 14, 2018
    Assignee: Korea Research Institute of Chemical Technology
    Inventor: Jeong Hoon Kim
  • Patent number: 10029217
    Abstract: Disclosed herein is a method of making a crosslinked membrane such as a crosslinked hollow fiber membrane. The method comprises (a) preparing a polyimide polymer comprising carboxylic acid functional groups from a reaction solution comprising monomers and at least one solvent; (b) treating the polyimide polymer with a diol at esterification conditions to form a monoesterified polyimide polymer; (c) forming a monoesterified polyimide membrane or dense film from the monoesterified polyimide polymer; and (d) subjecting the monoesterified polyimide membrane or dense film to transesterification conditions under a CO2 atmosphere to form a crosslinked polyimide membrane or dense film.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 24, 2018
    Assignee: Chevron U.S.A. Inc.
    Inventors: Nitesh Bhuwania, Shabbir Hussain, Daniel Chinn, John Wind, Stephen Miller
  • Patent number: 10022675
    Abstract: A method of producing a composite for acid gas separation by roll-to-roll process, including: a preparation step for preparing a coating liquid, containing a hydrophilic compound, an acid gas carrier and water, for formation of an acid gas separation facilitated transport membrane; a coating step for coating onto the support the coating liquid for formation at a liquid membrane thickness of 0.3 mm to 3.0 mm; a winding step for drying the coated liquid membrane in a drying oven to form the acid gas separation facilitated transport membrane, and winding around a winding roll the composite formed through formation of the acid gas separation facilitated transport membrane on the support, wherein humidity in a winding step unit in which the winding step is performed is measured to control the humidity to be 10% to 60%, and the winding step is performed under the controlled humidity conditions.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: July 17, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Satoshi Yoneyama
  • Patent number: 9901879
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 27, 2018
    Assignees: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: Rohit N. Karnik, Suman Bose, Michael S. H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang
  • Patent number: 9827393
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: November 28, 2017
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 9694325
    Abstract: A composite membrane comprising: (a) a porous support; (b) a gutter layer; (c) a discriminating layer having an average thickness of at most 90 nm; and (d) a protective layer having an average thickness 150 nm to 600 nm comprising dialkylsiloxane groups.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 4, 2017
    Assignee: Fujifilm Manufacturing Europe BV
    Inventors: Shigehide Itoh, Yujiro Itami
  • Patent number: 9545599
    Abstract: A gaseous component is extracted non-cryogenically from a feed gas containing condensable hydrocarbons. The feed gas is passed first through a module containing polymeric fibers useful for removing water vapor from the gas. The gas is then passed through a module containing polymeric fibers selected such that they remove some, but not all, of the carbon dioxide in the stream. The gas is then passed through a module containing polymeric fibers selected to remove at least some of the remaining carbon dioxide as well as heavy hydrocarbons, defined as C5 and heavier, from the stream. The invention is especially useful in processing raw methane taken from a well, and in producing methane which is relatively free of water vapor, carbon dioxide, and heavy hydrocarbons.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 17, 2017
    Assignee: Generon IGS, Inc.
    Inventors: Marc Straub, John A. Jensvold
  • Patent number: 9527045
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a film or hollow fiber membrane made of a polyimide polymer or copolymer essentially consisting of repeating units of dianhydride-derived units and diamine-derived units. At least 50% of the dianhydride-derived units are derived from 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane (6FDA). At least 50% of the diamine-derived units are derived from 2,5-diethyl-6-methyl-1,3-diamino benzene (DETDA).
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: December 27, 2016
    Assignees: L'Air Liquide Société Anonyme pour l'Étude et l'Exploitation des Procedes Georges Claude, Georgia Tech Research Corporation
    Inventors: William J. Koros, Shilu Fu, Edgar S. Sanders, Jr., Sudhir S. Kulkarni
  • Patent number: 9387430
    Abstract: Methods and systems of enhanced carbon dioxide recovery from an inlet gas stream are provided, by introducing the gas stream to one or more membrane-based separation units to produce a permeate byproduct gas stream having increased concentration of carbon dioxide compared to the inlet gas stream and then introducing the permeate byproduct gas stream to one or more pressure swing adsorption units or trains to enhance recovery of hydrocarbons, such as methane, lost in the byproduct stream and to produce a substantially pure carbon dioxide stream, while minimizing process compression and eliminating process heat for process regeneration. The methods introduced herein are for enhancing product recovery by enhancing carbon dioxide recovery from gas streams with pressures greater than atmospheric conditions. Further refinement to the methods would be the introduction of hydrogen sulfide polishing units within the process to produce product that meets or exceeds sales quality specifications.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: July 12, 2016
    Assignee: Apache Corporation
    Inventors: Jason G. S. Ho, J. Calvin Cooper
  • Patent number: 9381472
    Abstract: A carbon dioxide separation membrane includes a skin layer having a function of separating carbon dioxide from a mixed gas, wherein the skin layer contains 30 to 90% by mass of a polymer resin in which a difference between an affinity to carbon dioxide and an affinity to at least one of hydrogen and helium, the affinities are expressed as free energy ?G (kcal mol?1), is 4.5 kcal mol?1 or more and less than 10 kcal mol?1, and from 10 to 70% by mass of an organic liquid having an affinity to carbon dioxide.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: July 5, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Ryuichiro Hiranabe, Masayuki Hanakawa, Tomonori Kawakami
  • Patent number: 9370735
    Abstract: A composition comprising a mesoporous silica having grafted therewith an ionic liquid to form a mesoporous silica composition offers desirable levels of functionality, sorption, specific surface functionalization, and selectivity for polar gas/non-polar gas and olefin/paraffin separations. One particular embodiment employs silylated 3,3?-(2,2-bis(hydroxymethyl)propane-1,3-diyl)bis(1-methyl-1H-imidazol-3-ium)bis-((trifluoromethyl-sulfonyl)amide as the ionic liquid. The mesoporous silica composition may be configured as, for example, a membrane.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: June 21, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Deepak Akolekar, Victor J. Sussman, M J. Yanjarappa, Phani Kiran Bollapragada, Scott T. Matteucci, Peter N. Nickias
  • Patent number: 9308488
    Abstract: Polyimide membranes are provided that provide extremely high permeability. The polyimides do not contain carbonyl or sulfonyl functional groups. These membranes are useful in separating gases including the separation of gas pairs including carbon dioxide/methane, hydrogen/methane and propylene/propane as well as other gas mixtures. The membrane selectivity can be adjusted by exposure to ultraviolet light.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: April 12, 2016
    Assignee: UOP LLC
    Inventors: Carl W. Liskey, Chunqing Liu, Michael B. Hamoy
  • Patent number: 9308502
    Abstract: Polyimide membranes are provided that provide extremely high permeability. The polyimides do not contain carbonyl or sulfonyl functional groups. These membranes are useful in separating gases including the separation of gas pairs including carbon dioxide/methane, hydrogen/methane and propylene/propane as well as other gas mixtures. The membrane selectivity can be adjusted by exposure to ultraviolet light.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: April 12, 2016
    Assignee: UOP LLC
    Inventors: Carl W. Liskey, Chunqing Liu, Michael B. Hamoy
  • Patent number: 9278308
    Abstract: A construction element for a plant for capture of an acidic gas using an aqueous amine absorbent, wherein at least a part of a surface of said element comprises a polyolefin, and a hydrolytically stable antioxidant, is described. Additionally, a liner comprising said polyolefin and the hydrolytically stable antioxidant, is described. The construction element may be a column, a pipe, an insert, like a column packing element or a tray. An apparatus for capturing CO2 using the construction elements, is also described.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: March 8, 2016
    Assignee: Aker Engineering & Technology AS
    Inventors: Svein Jamtvedt, Harry Øysæd, John Ole Gjerp, Frank Henning Forsberg
  • Patent number: 9273876
    Abstract: A contactor configured for use in a dehumidification system is provided including a plurality of contact modules. Each contact module has a porous membrane that defines an internal space through which a hygroscopic material flows. A membrane property of the porous membrane of at least one contact module is substantially different than the other membranes of the plurality of contact modules.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 1, 2016
    Assignee: CARRIER CORPORATION
    Inventors: Kenneth David Smith, Zidu Ma, Sherif Kandil
  • Patent number: 9272248
    Abstract: A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin has structure in which a polyimide compound is crosslinked and linked, and the polyimide compound is a copolymer having at least an imide group-containing monomer component and a monomer component having a specific polar group; and a module, a gas separation apparatus and a gas separation method using the same.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 1, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Sano, Ichirou Nagata, Tomonori Ishino, Kentaro Shiratsuchi, Shigehide Itou, Kenichi Ishizuka, Takeshi Umehara
  • Patent number: 9243219
    Abstract: A system and method of growing and harvesting algae provided whereby the system encompasses incubation tanks, internal lighting, chilled air diffusers, and an inline incubation tank for continuous batch processing. A centrifuge separates algae from growth media, and the media is processed through a series of reclamation steps so that cleaned water is reused for fresh media.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: January 26, 2016
    Inventor: Geronimos Dimitrelos
  • Patent number: 9238204
    Abstract: A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin has structure in which a polyimide compound is crosslinked through a specific crosslinking chain, the specific crosslinking chain has at least one kind of linking group selected from the group consisting of —NRaC(?O)—, —NRbC(?O)O—, —CH2OCH2—, —CH2SCH2—, —OC(?O)O—, —C(?O)O?N+(Rc)3—, —SO3?N+(Rd)3— and —PO3?N+(Re)3—, and Ra, Rb, Rc, Rd and Re each independently represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: January 19, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Sano, Tomonori Ishino, Ichirou Nagata, Kentaro Shiratsuchi, Shigehide Itou, Kenichi Ishizuka, Takeshi Umehara
  • Patent number: 9205365
    Abstract: A sorbent article having a substrate having porous channel walls defining open channels, and an organic-inorganic hybrid sorbent material distributed on a surface of the porous channel walls, wherein the sorbent material is derived from an amino-functionalized alkoxysilane and a polyamine, wherein the sorbent material is present in an amount equal to or greater than 10 g/l, wherein at least some of the sorbent material resides in the porous channel walls and forms CO2 adsorption sites within the interior of the porous channel walls. The article may be useful, for example, for removing CO2 from a gas.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: December 8, 2015
    Assignee: CORNING INCORPORATED
    Inventors: Dayue Jiang, Zhen Song, Jianguo Wang
  • Patent number: 9144766
    Abstract: A method of capturing and sequestering a gas species from a fossil fuel-fired power plant flue gas is disclosed. The method includes the step of providing an apparatus having a vessel adapted to be pressurized and a hollow fiber membrane contained in the vessel and having a sorbent embedded therein. The method further includes the steps of subjecting the hollow fiber membrane to a flow of flue gas, removing one or more gas species from the flue gas with the hollow fiber membrane, and regenerating the sorbent contained in the hollow fiber membrane.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 29, 2015
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Ramsay Chang, Adam Berger, Abhoyjit Bhown
  • Patent number: 9072987
    Abstract: A method for desorption of one or more gases from a liquid stream in which a liquid stream containing at least one gas is provided to the feed side of a porous membrane and a trans-membrane pressure drop from the feed side to the opposite gas side of the membrane is created, resulting in a portion of the liquid stream filling at least a portion of the pores of the porous membrane and desorption of at least a portion of the at least one gas from the liquid stream to the gas side of the porous membrane.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 7, 2015
    Assignee: Gas Technology Institute
    Inventors: Shiguang Li, Dennis Rocha, Shaojun Zhou, Howard Meyer, Benjamin Bikson, Yong Ding
  • Patent number: 9051228
    Abstract: A natural gas feedstream containing contaminants such as carbon dioxide is purified by passing the contaminated natural gas stream through a membrane to remove the bulk of the contaminant, passing the purified natural gas stream to a TSA unit to remove additional contaminant from the natural gas stream to a desired specification, and regenerating the TSA adsorbent by heating the adsorbent with a heated contaminant-containing permeate stream from the membrane.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 9, 2015
    Assignee: Guild Associates
    Inventors: Michael J. Mitariten, Roy Brown
  • Patent number: 9050633
    Abstract: A template washing method and a photowashing apparatus which ensure removal of resist residual remaining on a pattern surface of a template, a pattern forming method and a nanoimprint apparatus which ensure formation of patterns with fewer defects are provided. The template washing method of the invention for photowashing the pattern surface of the template used in nanoimprint includes a vacuum-ultraviolet light irradiation process for irradiating the pattern surface of the template with vacuum ultraviolet light under an atmosphere of dry air.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: June 9, 2015
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventor: Hiroki Horibe
  • Patent number: 9044566
    Abstract: There is disclosed a portable life support system with a component for removal of at least one selected gas. In an embodiment, the system includes a supported liquid membrane having a first side and a second side in opposition to one another, the first side configured for disposition toward an astronaut and the second side configured for disposition toward a vacuum atmosphere. The system further includes an ionic liquid disposed between the first side and the second side of the supported liquid membrane, the ionic liquid configured for removal of at least one selected gas from a region housing the astronaut adjacent the first side of the supported liquid membrane to the vacuum atmosphere adjacent the second side of the supported liquid membrane. Other embodiments are also disclosed.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 2, 2015
    Assignee: Reaction Systems, LLC
    Inventors: David T. Wickham, Kevin J. Gleason, Scott W. Cowley
  • 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
  • Publication number: 20150122122
    Abstract: The present disclosure relates to a method for removing carbon dioxide from hydrocarbons, the method comprising the steps of: (a) contacting a feed stream comprising hydrocarbons and carbon dioxide with one or more gas-separation membranes to produce a hydrocarbon-rich retentate gas stream and a permeate gas stream rich in carbon dioxide, the retentate gas stream containing less carbon dioxide relative to the feed stream; and (b) passing at least one of the retentate gas stream or the permeate gas stream through an absorption unit to produce a hydrocarbon-rich gas phase and a liquid absorbent phase containing said carbon dioxide. The present disclosure also relates to a system for doing the same.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 7, 2015
    Inventors: W Nurul Ffazida W Mustapa, M Hanif M Halim, Farahdila Kadirkhan, Azman Shafawi, Athirah M Tamidi
  • Publication number: 20150114224
    Abstract: Cross-linked rubbery polyurethane-ether polymeric membranes are made from cross-linked rubbery polyurethane-ether polymers that are synthesized from a diisocyanate-terminated polyether and a tetrol with four hydroxyl functional groups. The hydroxyl groups on the tetrol react with the isocyanate groups on the diisocyanate-terminated polyether to form urethane bonds. The cross-linked rubbery polyurethane-ether polymeric membrane selectively permeate condensable vapors such as C3 to C35 hydrocarbons, aromatics, water vapor, carbon dioxide, and hydrogen sulfide and rejects methane and ethane. The cross-linked rubbery polyurethane-ether polymeric membrane have high permeance for condensable vapors, high selectivity for condensable vapors over methane and ethane, and high resistance to liquid chemicals.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Howie Q. Tran
  • Patent number: 9005335
    Abstract: A gas separation process for treating an exhaust gas stream from a combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, and flowing a second portion of the exhaust stream and at least a portion of an off-gas stream from the carbon dioxide capture step across the feed side of a membrane, while flowing a sweep gas stream, usually air, across the permeate side, and then passing the resulting permeate sweep stream back to the combustor.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 14, 2015
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Richard W. Baker, Xiaotong Wei, Timothy C Merkel
  • Patent number: 9005345
    Abstract: An apparatus for gas separation a composite gas separation membrane having a gas separation layer disposed on a surface of a porous support. The gas separation layer has a plurality of gas permeable inorganic nano-particles embedded in a dense polymer forming substantially only discrete gas transport channels through the dense polymer layer, wherein direct fluid communication is provided from a feed side of the composite gas separator membrane to the porous support. Preferably, the inorganic nano-particles are porous molecular sieve particles, such as SAPO-34, ALPO-18, and Zeolite Y nano-particles.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: April 14, 2015
    Assignee: Gas Technology Limited
    Inventors: Shiguang Li, Shaojun Zhou, Miao Yu, Moises A Carreon
  • Patent number: 8999036
    Abstract: Biogas is converted to a vehicle fuel equivalent to compressed natural gas high in methane in a simple, low cost process involving steps of refrigeration, non-regenerative activated carbon purification and carbon dioxide removal using low-pressure membrane technology.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: April 7, 2015
    Assignee: Stearns Conrad Schmidt Consulting Engineers, Inc.
    Inventor: Jeffrey L. Pierce
  • Patent number: 8999038
    Abstract: The invention relates to a specific apparatus, more particularly a chain of gas separation membrane modules, for separation of gas mixtures into two fractions each of elevated purity.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 7, 2015
    Assignee: Evonik Fibres GmbH
    Inventors: Markus Ungerank, Goetz Baumgarten, Markus Priske, Harald Roegl
  • Publication number: 20150090118
    Abstract: This invention relates to self-cross-linkable and self-cross-linked aromatic polyimide polymers, their membranes and methods for making and using these polymers and membranes. The self-cross-linkable aromatic polyimide polymer described in the present invention comprises both hydroxyl functional groups and carboxylic acid functional groups. The self-cross-linked aromatic polyimide was formed via heating the self-cross-linkable aromatic polyimide polymer at ?300° C. The self-cross-linked aromatic polyimide membranes exhibit high selectivity in separation of mixtures of gases and liquids.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Zara Osman, Angela N. Troxell
  • Publication number: 20150094500
    Abstract: A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Applicant: UOP LLC
    Inventors: Chunqing Liu, Zara Osman, Angela N. Troxell
  • Patent number: 8992668
    Abstract: A gas separation membrane including, a separation-active membrane containing: a compound represented by the following Formula (I) having a boiling point or a decomposition temperature of 200° C. or higher; and a cross-linked polymer containing a dissociable group and a repeating unit derived from alkylene glycol: wherein, in Formula (I), R1, R2 and R3 represent a hydrogen atom or a substituent; Wi represents a bivalent linking group; when R1, R2 and R3 represent a substituent, R1 and R2, R1 and R3 or R2 and R3 may be combined together to form a ring and wherein, in the compound represented by Formula (I), [total molecular weight of primary amine group+total molecular weight of secondary amine group]/[molecular weight of Formula (I)] is from 0.3 to 0.84.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: March 31, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Satoshi Sano
  • Patent number: 8979977
    Abstract: A device for degassing aqueous media has a first container containing medium to be degassed. A first line connects the first container to a degassing module and a second line connects the degassing module to a second container for receiving the degassed medium. A first non-return valve in the first line prevents backflow from the degassing module to the first container. A hydrophilic membrane in the second line prevents the passage of gas, and a branch between the degassing module and the hydrophilic membrane has a hydrophobic degassing filter for letting out gas. A third line is connected to the first line between the first container and the first non-return valve and to the second line between the second container and the hydrophilic membrane. A second non-return valve in the third line between the first non-return valve and the hydrophilic membrane prevents a flow towards the second container.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Fabian Walter, Matthias Grabosch, Dennis Groesche
  • Publication number: 20150020683
    Abstract: A method and apparatus for extracting CO2 from air comprising an anion exchange material formed in a matrix exposed to a flow of the air, and for delivering that extracted CO2 to controlled environments. The present invention contemplates the extraction of CO2 from air using conventional extraction methods or by using one of the extraction methods disclosed; e.g., humidity swing or electro dialysis. The present invention also provides delivery of the CO2 to greenhouses where increased levels of CO2 will improve conditions for growth. Alternatively, the CO2 is fed to an algae culture.
    Type: Application
    Filed: February 19, 2014
    Publication date: January 22, 2015
    Applicant: Kilimanjaro Energy, Inc.
    Inventors: Allen B. Wright, Klaus S. Lackner, Ursula Ginster
  • Patent number: 8926732
    Abstract: The present invention provides gels, solutions, films, membranes, compositions, and other materials containing polymerized and/or non-polymerized room-temperature ionic liquids (RTILs). These materials are useful in catalysis, gas separation and as antistatic agents. The RTILs are preferably imidazolium-based RTILs which are optionally substituted, such as with one or more hydroxyl groups. Optionally, the materials of the present invention are composite materials comprising both polymerized and non-polymerized RTILs. The RTIL polymer is formed from polymerized RTIL cations typically synthesized as monomers and polymerized in the presence of the non-polymerized RTIL cations to provide a solid composite material. The non-polymerized RTIL cations are not covalently bound to the cationic polymer but remain as free cations within the composite material able to associate with charged subunits of the polymer. These composite materials are useful in catalysis, gas separation, and antistatic applications.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: January 6, 2015
    Assignee: The Regents of the University of Colorado, a Body Corporate
    Inventors: Jason E. Bara, Trevor K. Carlisle, Evan S. Hatakeyama, Douglas L. Gin, Richard D. Noble, Robert L. Kerr, Andrew L. LaFrate
  • 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: 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