Selective Diffusion Of Gases Through Substantially Solid Barrier (e.g., Semipermeable Membrane, Etc.) Patents (Class 95/45)
  • Patent number: 10702832
    Abstract: A method of integrity testing porous materials that is non-destructive to the material being tested. The method includes humidifying the inlet gas stream to minimize or prevent the porous material from drying out. The inlet gas stream includes at least two gases, wherein one of the gases has a different permeability in liquid than the other, such as oxygen and nitrogen. The permeate gas stream may be subjected to a driving force such as reduced pressure to increase the flow of gases and reduce test time. Multiple porous materials can be integrity tested at the same time, such as by manifolding a plurality of them together. The integrity test is capable of detecting the presence of oversized pores or defects that can compromise the retention capability of the porous material.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 7, 2020
    Assignee: EMD Millipore Corporation
    Inventors: Salvatore Giglia, David Nhiem
  • Patent number: 10654006
    Abstract: A device for infusing gas into a liquid comprises a housing and a tube having a width that is smaller than that of the housing and which is positioned within the housing such that the longitudinal axis of the tube is approximately parallel to that of the housing. The device further comprises potting compound interposed between an outside surface of the tube and an inside surface of the housing at both ends of the tube. Microporous hollow fibers extend from the potting compound at the first end of the tube and through the potting compound at the second end of the tube. Openings in the device allow for the introduction of gas and liquid into the device. Gas enters the device and into the microporous hollow fibers. Liquid enters the device and is exposed to the outer surfaces of the microporous hollow fibers. Gas passes from the microporous hollow fibers to the liquid and is dissolved into the liquid. Liquid infused with gas exits the device.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: May 19, 2020
    Assignee: BioTherm Hydronic, Inc.
    Inventors: Jim Rearden, Daniel Whittemore, Chindia Tang, Thaddius Humphrey
  • Patent number: 10561978
    Abstract: A multi-stage polymeric membrane module system separates a gas, such as air, into components of high purity. In at least two of the stages, a portion of the retentate gas is directed into the low-pressure side of the module, to act as a sweep gas. The use of the sweep gas reduces the partial pressure of permeate gas on the low-pressure side of the membrane, and therefore improves the flow of permeate through the membrane. In a preferred embodiment, there are three modules. The output streams are taken from the retentate outlet of one module, and from the permeate outlet of another module. The output streams have very high purity, relative to the number of modules required, as compared with systems of the prior art.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: February 18, 2020
    Assignee: Generon IGS, Inc.
    Inventors: John A. Jensvold, Kyle A. Jensvold
  • Patent number: 10494728
    Abstract: The invention concerns a process for producing carbon monoxide (CO) from carbon dioxide (CO2) in a solid oxide electrolysis cell (SOEC) or SOEC stack, wherein CO2 is led to the fuel side of the stack with an applied current and excess oxygen is transported to the oxygen side of the stack, optionally using air or nitrogen to flush the oxygen side, and wherein the product stream from the SOEC, containing CO mixed with CO2, is subjected to a separation process. The process further comprises heating the inlet gas on both the fuel side and the oxygen side by means of separate heating units, so as to supply heat to the SOEC, where the operation temperature of said heating units is at least equal to the operation temperature of the cell stack minus 50° C., preferably at least equal to the operation temperature of the cell stack.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 3, 2019
    Assignee: Haldor Topsoe A/S
    Inventors: Niklas Bengt Jakobsson, Claus Friis Pedersen, John Bøgild Hansen
  • Patent number: 10471380
    Abstract: The invention relates to a specific process and apparatus for separation of gas mixtures with reduced maintenance costs.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 12, 2019
    Assignee: Evonik Fibres GmbH
    Inventor: Markus Priske
  • Patent number: 10456751
    Abstract: An object of the present invention is to provide a method capable of easily controlling the permeation rate and the selectivity of gas molecules, in a hollow fiber carbon membrane which can be used as a gas separation membrane. The present invention provides a method of producing a hollow fiber carbon membrane, the method including: a preparation step of preparing a precursor made of an organic polymer compound in the form of a hollow fiber; a preheating step of heating the precursor to a temperature of 150° C. to 400° C. in an atmosphere containing an oxygen gas; and a carbonization step of heating the precursor which has been subjected to the preheating step to a temperature of 450° C. to 850° C., thereby carbonizing the precursor; wherein the carbonization step includes heating the precursor in the presence of a hydrocarbon gas which may contain a nitrogen atom and which has from 1 to 8 carbon atoms.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 29, 2019
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Miki Yoshimune, Kenji Haraya, Nobuo Hara
  • Patent number: 10443127
    Abstract: Systems and methods for supplying a precursor material for an atomic layer deposition (ALD) process are provided. A gas supply provides one or more precursor materials to a deposition chamber. The deposition chamber receives the one or more precursor materials via an input line. A gas circulation system is coupled to an output line of the deposition chamber. The gas circulation system includes a gas composition detection system configured to produce an output signal indicating a composition of a gas exiting the deposition chamber through the output line. The gas circulation system also includes a circulation line configured to transport the gas exiting the deposition chamber to the input line. A controller is coupled to the gas supply. The controller controls the providing of the one or more precursor materials by the gas supply based on the output signal of the gas composition detection system.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: October 15, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Bor-Chiuan Hsieh, Chien-Kuo Huang, Tai-Chun Huang, Kuang-Yuan Hsu, Tze-Liang Lee
  • Patent number: 10441924
    Abstract: Embodiments include a method of making a metal-organic framework membrane comprising contacting a substrate with a solution including a metal ion and contacting the substrate with a solution including an organic ligand, sufficient to form one or more layers of a metal-organic framework on a substrate. Embodiments further include a defect-free metal-organic framework membrane comprising MSiF6(pyz)2, wherein M is a metal, wherein the thickness of the membrane is less than 1,000 ?m, and wherein the metal-organic framework has a growth orientation along the [110] plane relative to a substrate.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: October 15, 2019
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Mohamed Eddaoudi, Osama Shekhah, Youssef Belmabkhout
  • Patent number: 10439185
    Abstract: The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy, and the Au content in the Pd—Au alloy is 15 mol % or more.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 8, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takahiro Fukuoka, Kyoko Ishii, Shunsuke Masaki, Kenta Hata, Hiroshi Yukawa, Tomonori Nanbu
  • Patent number: 10374202
    Abstract: The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy, and the Au content in the Pd—Au alloy is 15 mol % or more.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 6, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takahiro Fukuoka, Kyoko Ishii, Shunsuke Masaki, Kenta Hata, Hiroshi Yukawa, Tomonori Nanbu
  • Patent number: 10370392
    Abstract: The present invention relates to compositions comprising at least one hydridosilane of the generic formula SinHm with n?5 and m=(2n) and (2n+2) and at least one compound of the formula HnB (OR)3?n with R=C1-C10-alkyl, C6-C10-aryl, C7-C14-aralkyl, halogen, n=0, 1, 2, to processes for preparation thereof and use thereof.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: August 6, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Stephan Herrmann, Odo Wunnicke, Matthias Patz, Miriam Deborah Malsch, Harald Stueger
  • Patent number: 10323202
    Abstract: A method for removing hydrogen sulfide (H2S) from an acid gas comprises feeding the gas to a membrane separation unit, collecting the product gas from the membrane unit, heating the permeate stream to the necessary inlet temperature for catalytic oxidation of H2S and feeding the heated permeate stream to a catalytic oxidation unit, where H2S is oxidized to SO2. The heating of the permeate stream is accomplished by using a fraction of the feed gas to heat the permeate stream in a separate heater or by using a steam-fired heater. The method is especially suited for use on an off-shore facility.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 18, 2019
    Assignee: HALDOR TOPSØE A/S
    Inventors: Niklas Bengt Jakobsson, Claus Friis Pedersen
  • Patent number: 10258933
    Abstract: Provided is a zeolite membrane manufactured by: subjecting a porous body to heat treatment at 400° C. or more in the presence of oxygen as pretreatment, before adhering zeolite seed crystals to a surface of the porous body; storing the porous body under an environment of humidity of 30% or more for 12 hours or more after the heat treatment; and subsequently adhering the zeolite seed crystals to the porous body. The zeolite membrane having oxygen eight-membered rings, which is manufactured by subjecting the porous body to the heat treatment, provides a value that is obtained by dividing a permeance of CF4 by a permeance of CO2 to be 0.015 or less, and has fewer defects.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: April 16, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Kenji Yajima, Takeshi Hagio, Makoto Miyahara, Tetsuya Uchikawa, Naoko Inukai, Makiko Ichikawa
  • Patent number: 10240001
    Abstract: Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: March 26, 2019
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiaohua Ma, Bader S. Ghanem, Ingo Pinnau
  • Patent number: 10118129
    Abstract: A natural-gas purification apparatus includes: a compressor; a cooling unit that liquefies and separates a part of natural-gas liquid; a heating unit; first to third carbon-dioxide separation units that separate carbon dioxide through carbon-dioxide separation membranes; a detection carbon-dioxide separation unit that further separates carbon dioxide through a carbon-dioxide separation membrane; a carbon-dioxide-flow-rate sensor that detects the amount of carbon dioxide separated by the detection carbon-dioxide separation unit; an arithmetic control device that adjusts and controls at least one of the pressure to be applied by the compressor, the cooling temperature of the cooling unit, and the heating temperature of the heat unit based on information from the carbon-dioxide-flow-rate sensor such that the amount of carbon dioxide to be separated by the detection carbon-dioxide separation unit will be higher than or equal to a prescribed amount.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 6, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masayuki Eda, Wataru Matsubara, Shintaro Honjo, Susumu Okino, Hiromi Nakatani, Masaki Yushima
  • Patent number: 10099176
    Abstract: Conventionally air filters are particulate filters composed of fibrous materials in order to remove solid particulates such as dust, pollen, mold, and bacteria from the air. Accordingly, it would be beneficial to provide absorbent filters within such systems in order to address the removal of gaseous impurity components from the circulating air in addition to conventional particulate filters. It would be further beneficial to provide such absorbent filters in a manner which is compatible with commercial and residential environments that represent the majority of such air circulation systems. It would be further beneficial to provide such absorbent filters in formats that are compatible with new system installations as well as retrofitting to existing system installations.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 16, 2018
    Inventor: Roshdy Rady Ateya Soliman
  • Patent number: 10071346
    Abstract: The present invention relates to the production of a hydroxyl polyimide-co-polyimide membrane, the fabrication of a thermally rearranged poly(benzoxazole-co-imide) membrane by thermally treating the hydroxyl polyimide-co-polyimide membrane, and the application of the thermally rearranged poly(benzoxazole-co-imide) membrane to membrane distillation. The thermally rearranged poly(benzoxazole-co-imide) separation membrane has high liquid entry pressure, low thermal conductivity, high permeate flux, and good long-term stability, as well as excellent thermal and chemical properties. Due to these advantages, the copolymer separation membrane can be applied to membrane distillation processes.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: September 11, 2018
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Young Moo Lee, So Young Lee, Ji Hoon Kim, Moonjoo Lee, Wonhyo Lee
  • Patent number: 10005022
    Abstract: The present disclosure provides improved systems, assemblies and methods to remove and recover CO2 from emissions. More particularly, the present disclosure provides improved membrane contactors configured to remove CO2 from flue gas by temperature swing absorption. In exemplary embodiments, the present disclosure provides a novel hollow fiber membrane contactor that integrates absorption and stripping using a nonvolatile reactive absorbent (e.g., 80% polyamidoamine (PAMAM) dendrimer generation 0, and 20% of an ionic liquid (IL)). Equilibrium CO2 absorption in the nonvolatile viscous mixed absorbent is as high as 6.37 mmolCO2/g absorbent in the presence of moisture at 50° C. A novel membrane contactor is provided for CO2 absorption and stripping via a process identified as temperature swing membrane absorption (TSMAB). The contactor integrates non-dispersive gas absorption and hot water-based CO2 stripping in one device/assembly containing two sets of commingled hollow fibers.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: June 26, 2018
    Assignee: New Jersey Institute of Technology
    Inventor: Kamalesh K. Sirkar
  • Patent number: 9962657
    Abstract: Various embodiments disclosed relate to methods of separating a volatile siloxane from a liquid mixture. In various embodiments, the method includes contacting a first side of a first hydrophobic membrane with a liquid feed mixture including a polymer and at least one volatile siloxane. The method can also include contacting a second side of the membrane with a sweep medium including at least one of a sweep gas, a sweep liquid, and a vacuum, to produce a permeate mixture on the second side of the membrane and a retentate mixture on the first side of the membrane, wherein the permeate mixture is enriched in the volatile siloxane, and the retentate mixture is depleted in the volatile siloxane.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: May 8, 2018
    Assignee: DOW CORNING CORPORATION
    Inventors: Dongchan Ahn, James Thompson
  • Patent number: 9861932
    Abstract: Disclosed herein is polymer membrane for gas separation or concentration which contains a hybrid nanoporous material, an application thereof, and a manufacturing method thereof. Especially, the hybrid nanoporous material has a window size of 4 ? to 15 ? or has gas adsorption characteristics for a gas to be separated, which is different from those for other gases, and thus the present invention may provide the polymer membrane having improved gas permeation selectivity, an application thereof, and a manufacturing method thereof.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: January 9, 2018
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: U-Hwang Lee, Jong San Chang, Young Kyu Hwang, You In Park, Hye Rim Song, Seung Eun Nam, Do Young Hong, Sue Kyung Lee, Kyung Ho Cho
  • Patent number: 9815032
    Abstract: The present invention relates to a mixed-matrix composition comprising polymer having a fractional free volume of at least 0.1 and porous particles.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: November 14, 2017
    Assignees: The Regents of the University of Colorado, Commonwealth Scientific and Industrial Research Organisation
    Inventors: Matthew R. Hill, Cher Hon Lau, Kristina Konstas, Phuc Tien Nguyen, Douglas Gin, Richard D. Noble
  • Patent number: 9808772
    Abstract: Provided is a gas separation membrane including a support, a separation layer, and a protective layer in this order, in which the separation layer contains inorganic particles, the protective layer contains a resin and inorganic particles having an average particle diameter of 10 nm or greater which is less than 0.34 times the film thickness of the protective layer, and the content of the inorganic particles contained in the protective layer is 40% by mass or less with respect to the content of the resin contained in the protective layer, the gas separation membrane being capable of being made into a spiral type gas separation membrane module while maintaining high permeability; and a gas separation membrane module which uses the gas separation membrane.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 7, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Yusuke Mochizuki
  • Patent number: 9772109
    Abstract: A process of producing a feed form a solid electrolyte oxygen separator and combusting the feed in a steam methane reforming furnace to produce a flue gas.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: September 26, 2017
    Assignee: Phillips 66 Company
    Inventors: Uchenna Prince Paul, David Brooke Ingram
  • Patent number: 9751042
    Abstract: The present disclosure provides improved systems, assemblies and methods to remove and recover CO2 from emissions. More particularly, the present disclosure provides improved membrane contactors configured to remove CO2 from flue gas by temperature swing absorption. In exemplary embodiments, the present disclosure provides a novel hollow fiber membrane contactor that integrates absorption and stripping using a nonvolatile reactive absorbent (e.g., 80% polyamidoamine (PAMAM) dendrimer generation 0, and 20% of an ionic liquid (IL)). Equilibrium CO2 absorption in the nonvolatile viscous mixed absorbent is as high as 6.37 mmolCO2/g absorbent in the presence of moisture at 50° C. A novel membrane contactor is provided for CO2 absorption and stripping via a process identified as temperature swing membrane absorption (TSMAB). The contactor integrates non-dispersive gas absorption and hot water-based CO2 stripping in one device/assembly containing two sets of commingled hollow fibers.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: September 5, 2017
    Assignee: New Jersey Institute of Technology
    Inventor: Kamalesh K. Sirkar
  • Patent number: 9662688
    Abstract: An apparatus for cross-flow purging for optical components in a chamber, including: a housing with first and second axial ends, a side wall extending in an axial direction and connecting the first and second axial ends, and the chamber formed by the first and second axial ends and the side wall; an optical component disposed within the chamber and fixed with respect to the housing via at least one connecting point on the optical component; an inlet port aligned with the side wall, between the first and second axial ends in the axial direction, in a radial direction orthogonal to the axial direction and arranged to inject a purge gas into the chamber and across the optical component in a radial direction orthogonal to the axial direction; and an exhaust port aligned with the side wall in the radial direction and arranged to exhaust the purge gas from the chamber.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: May 30, 2017
    Assignee: KLA-Tencor Corporation
    Inventors: Garry Rose, Gildardo Delgado, H. Steven Larson, Daniel R. Hennigan
  • Patent number: 9643124
    Abstract: A process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of partially fluorinated or perfluorinated dioxolane monomers and a second monomer, such as dioxane or a partially fluorinated dioxolane. 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: Grant
    Filed: October 23, 2015
    Date of Patent: May 9, 2017
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Hao Zhang, Zhenjie He, Timothy C Merkel, Yoshiyuki Okamoto, Yasuhiro Koike
  • Patent number: 9636632
    Abstract: A process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of an amorphous perfluorinated dioxolane and a fluorovinyl monomer. 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, Hlyflon® AD, and Cytop®.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 2, 2017
    Assignees: Membrane Technology and Research, Inc, New York University
    Inventors: Timothy C Merkel, Hao Zhang, Zhenjie He, Yoshiyuki Okamoto
  • Patent number: 9517933
    Abstract: One exemplary embodiment can be a process for catalytic reforming. The process can include catalytically reforming a hydrocarbon feed in a reaction zone, obtaining an effluent stream having hydrogen and hydrocarbons from the reaction zone, obtaining from at least a portion of the effluent stream a waste hydrocarbon stream from an adsorption zone, passing at least a portion of the waste hydrocarbon stream as a feed stream across a feed side of a membrane having the feed side and a permeate side, and being selective for hydrogen over one or more C1-C6 hydrocarbons, and withdrawing from the permeate side a permeate stream enriched in hydrogen compared with a residue stream withdrawn from the feed side.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: December 13, 2016
    Assignee: UOP LLC
    Inventors: Eleftherios Adamopoulos, Wim Frans Elseviers, Bryan K. Glover
  • Patent number: 9364796
    Abstract: The present invention relates to a hydrophobic or oleophobic microporous polymer membrane having a structurally induced drip-off effect, to methods for producing the membrane according to the invention, to the use of the membrane in the sterile filtration of gaseous fluids, and to the use of the membrane as a liquid barrier in liquid-containing systems to be vented.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 14, 2016
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Eberhard Wünn, Tobias Schleuss
  • Patent number: 9346011
    Abstract: A hollow fiber carbon molecular sieve membrane, a process for preparing the hollow fiber carbon molecular sieve membrane, and a process for effecting separation of an olefin from a gaseous mixture that comprises the olefin in admixture with its corresponding paraffin and optionally one or more gaseous components selected from hydrogen, an olefin other than the olefin and a paraffin other than the corresponding paraffin. The process and membrane may also be used to effect separation of the olefin(s) from remaining feedstream components subsequent to an olefin-paraffin separation.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 24, 2016
    Inventors: William J. Koros, Liren Xu, Mark K. Brayden, Marcos V. Martinez, Brien A. Stears
  • Patent number: 9302258
    Abstract: The present invention relates to a complex and a method for manufacturing same, the complex comprising: at least one crystalline hybrid nanoporous material powder, in which a metal ion, or a metal ion cluster to which oxygen is bound, and an organic ligand, or the organic ligand and a negative ion ligand are in a coordinate covalent bond; and at least one organic polymer additive, or at least one organic polymer additive and an inorganic additive, wherein the shape of the complex is spherical or pseudo-spherical, the size of the complex is 0.1 to 100 mm, a total volume of pores is 5 or more volume % based on the sum of a total volume of nanoporous material having a size of at most 10 nm and a total volume of pores having a size of at least 0.1 ?m, and wherein a non-surface value per weight (m2/g) of the complex as at least 83% of a non-surface value per weight (m2/g) of the nanoporous material powder.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: April 5, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jong-San Chang, U-Hwang Lee, Young Kyu Hwang, Dong Won Hwang, You-Kyong Seo, Ji Sun Lee, Ji Woong Yoon, Kyu Eun Shim
  • Patent number: 9289730
    Abstract: The invention provides improved hollow fiber membranes having at least two layers, and methods for forming the same. The methods include co-extruding a first composition, a second composition, and a third composition to form a dual layer hollow fiber membrane. The first composition includes a glassy polymer; the second composition includes a polysiloxane; and the third composition includes a bore fluid. The dual layer hollow fiber membranes include a first layer and a second layer, the first layer being a porous layer which includes the glassy polymer of the first composition, and the second layer being a polysiloxane layer which includes the polysiloxane of the second composition.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: March 22, 2016
    Assignee: General Electric Company
    Inventors: Dhaval Ajit Bhandari, Patrick Joseph McCloskey, Paul Edward Howson, Kristi Jean Narang, William Koros
  • Patent number: 9290859
    Abstract: The present invention provides a method for preparing a thin or thick film, comprising the steps of: (1) arranging non-spherical seed crystals on a substrate such that all the a-, b- and c-axes of each seed crystal are oriented under a predetermined rule; and (2) forming and growing the film from the seed crystals through secondary growth by exposing the arranged seed crystals of step (1) to a seed crystal growth solution. The invention also provides a film prepared by the method. According to the invention, crystals or films larger than the seed crystals can be prepared.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 22, 2016
    Assignee: Industry-University Cooperation Foundation Sogang University
    Inventors: Kyung Byung Yoon, CaoThanhTung Pham
  • Patent number: 9238202
    Abstract: The invention is a process of making a chemically and UV treated polymer of intrinsic microporosity membrane comprising preparing a polymer of intrinsic microporosity, chemically cross-linking said polymer of intrinsic microporosity with a cross-linking compound to produce a chemically cross-linked polymer of intrinsic microporosity and then treating said chemically cross-linked polymer with UV radiation for a period of time sufficient to provide a product membrane. This product membrane is useful in the separation of C3 and higher hydrocarbons, as well as CO2, from natural gas and other gas streams.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 19, 2016
    Assignee: UOP LLC
    Inventors: Carl W. Liskey, Michael B. Hamoy, Chunqing Liu
  • Patent number: 9233339
    Abstract: A composite structure for capturing a gaseous electrophilic species, the composite structure comprising mesoporous refractory sorbent particles on which an ionic liquid is covalently attached, wherein said ionic liquid includes an accessible functional group that is capable of binding to said gaseous electrophilic species. In particular embodiments, the mesoporous sorbent particles are contained within refractory hollow fibers. Also described is a method for capturing a gaseous electrophilic species by use of the above-described composite structure, wherein the gaseous electrophilic species is contacted with the composite structure.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: January 12, 2016
    Assignees: UT-BATTELLE, LLC, GEORGIA TECH RESEARCH CORPORATION
    Inventors: Jong Suk Lee, William J. Koros, Nitesh Bhuwania, Patrick C. Hillesheim, Sheng Dai
  • Patent number: 9221019
    Abstract: An organic/inorganic composite compound for fouling resistance may include a core and at least an arm. The core may be formed of a polyhedron of polyhedral oligomeric silsesquioxane. At least one arm may be connected to a Si atom of the polyhedral oligomeric silsesquioxane. The arm may include a vinyl-based first structural unit including at least one ethylene oxide group at the side chain, and a hydrophobic vinyl-based second structural unit.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 29, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Hyo Kang, Sung Soo Han, Jong-Chan Lee, You Hwan Son, Jung Im Han, Hye Young Kong, Dong-Gyun Kim
  • Patent number: 9211494
    Abstract: A method of pretreating a natural gas stream for a floating liquefied natural gas plant is described. A natural gas feed stream is introduced into an amine absorption unit and a temperature swing adsorption unit located on a ship. The temperature swing adsorption unit has a dehydration cycle and a CO2 removal cycle. The amount of motion of the ship, or the level of CO2 in the natural gas feed stream with reduced contaminants, or both, is monitored. If the amount of motion of the ship or the level of CO2 in the natural gas feed stream with reduced contaminants exceeds a predetermined value, temperature swing adsorption unit is switched from the dehydration cycle to the CO2 removal cycle.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: December 15, 2015
    Assignee: UOP LLC
    Inventors: Lubo Zhou, Shain Doong, Mark Schott
  • Patent number: 9162200
    Abstract: Disclosed is provided a method of injecting and reacting super-critical phase CO2 without pressure loss. The method includes preparing gas phase CO2, producing liquid phase CO2 by pressurizing the prepared gas phase CO2, producing super-critical phase CO2 by adjusting a temperature of the produced liquid phase CO2, filling incompressible fluid in a reactor and an injection line from an injection unit and pressurizing the incompressible fluid, injecting the produced super-critical phase CO2 into the reactor, and controlling a pressure of the injected super-critical phase CO2 by a pressure regulating unit.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: October 20, 2015
    Assignee: Korea Institute of Geoscience and Mineral Resources
    Inventors: Jun-Ho Oh, Kue-Young Kim, Tae-Hee Kim, Kwon-Gyu Park
  • Patent number: 9155989
    Abstract: A method and system for purification of a pressurized gas stream, wherein the method includes in a first absorption step bringing the pressurized gas stream in direct contact with a first absorption solution absorbing at least part of the acidic gases, in the gas stream obtaining a gas liquid mixture; and separating the gas liquid mixture in a partly purified pressurized gas stream and a first rich absorption solution. In a second downstream absorption step bringing the partly purified pressurized gas in contact with a second absorption solution through a membrane contactor, obtaining a second rich absorption solution and a purified pressurized gas stream. The first absorption solution is a partially lean absorption solution.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: October 13, 2015
    Assignee: AKER PROCESS SYSTEMS AG
    Inventors: Kamal C. Shah, Pål Helge Nøkleby, Geir Vingelven
  • Patent number: 9114352
    Abstract: A hydrogen purification process is provided. This process includes separating hydrogen from a hydrogen containing stream in at least two sequential palladium membrane purification zones, wherein each purification zone has a permeate side, wherein the permeate side pressure of purification zones are not the same.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 25, 2015
    Assignee: L'Air Liquide Société Anonyme Pour LÉtude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Trapti Chaubey, Bhadra S. Grover, Pascal Tessier
  • Patent number: 9076598
    Abstract: A paste containing a silica polymer, made by substituting at least some of the surface functional groups thereof with alkyl groups, and solvent-removable inorganic particles is prepared, and the paste is applied and fired to form a transparent insulating film in a dye-sensitized solar cell.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: July 7, 2015
    Assignees: SHARP CORPORATION, SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Liyuan Han, Ryohsuke Yamanaka, Nobuhiro Fuke, Atsushi Fukui, Shingo Takano, Gaku Fujihashi
  • Patent number: 9048468
    Abstract: A membrane humidifier assembly for a membrane humidifier for a fuel cell system and a method for making the same is disclosed, the method comprising the steps of providing a material for forming a diffusion medium; forming a plurality of channels in the material with one of a channel-forming roller, a means for etching the material, and a press for forming the diffusion medium; and providing a pair of membranes, wherein the diffusion medium is disposed between the pair of membranes.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: June 2, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeffrey M. Guzda, David A. Martinchek
  • Publication number: 20150129413
    Abstract: A gas separation process for treating a gas stream containing vapors of condensable components. The process includes two membrane separation steps, the second step using membranes of lower selectivity than the first step. Advantageously, the first membrane separation step may be carried out outside the pressure-ratio-limited region and the second membrane separation step may be carried out within the pressure-ratio-limited region. The second residue stream is a desired product of the process, and the process is particularly useful for applications where the target concentration of component A in this product is low, such as below 1-2 vol %.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: MEMBRANE TECHNOLOGY AND RESEARCH, INC.
    Inventors: Yu Huang, Richard W. Baker
  • Publication number: 20150122121
    Abstract: Gas separation membrane compositions including at least one crosslinked polymer, gas separation membranes made of such compositions, methods for making such gas separation membranes, and methods of using such membranes to separate gases are described. In one embodiment, the crosslinked polymer includes polyarylene ethers (PAE).
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventors: James McGrath, Yu Chen, Rulian Guo, Benny Freeman
  • 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
  • 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: 9017451
    Abstract: A gas separation process that utilizes ejector recycle with a membrane separation step in combination with a second separation step. The second separation step may be a second membrane separation, or may involve a different type of separation process. At least a portion of the non-product (i.e. residue) stream withdrawn from the second separation step is directed back to the ejector to form a processing loop. The ejector drives the gas flow in the loop and recycles the non-product stream to the first separation step.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 28, 2015
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Nicholas P. Wynn, Haiqing Lin, Meijuan Zhou, Jennifer H. Ly, Livia Serbanescu-Martin
  • Publication number: 20150104364
    Abstract: The present disclosure is directed to processes using a new crystalline molecular sieve designated SSZ-96, which is synthesized using a 1-butyl-1-methyl-octahydroindolium cation as a structure directing agent.
    Type: Application
    Filed: May 21, 2014
    Publication date: April 16, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Saleh Ali ELOMARI
  • Publication number: 20150101986
    Abstract: Disclosed are mixed matrix polymeric membranes comprising a plurality of metal-organic frameworks (MOFs), or in some aspects a zeolitic imidazolate frameworks (ZIFs), and a polymeric matrix, wherein the plurality of MOFs are attached to the polymeric matrix through covalent or hydrogen bonds or Van der Waals interaction.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Inventors: Ihab Nizar ODEH, Yunyang LIU
  • Patent number: 9005344
    Abstract: The present application is directed to a hydrophobic membrane assembly (28) used within a gas-generating apparatus. Hydrogen is separated from the reaction solution by passing through a hydrophobic membrane assembly (28) having a hydrophobic lattice like member (36) disposed within a hydrogen output composite (32) further enhancing the ability of the hydrogen output composite's ability to separate out hydrogen gas and prolonging its useful life.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: April 14, 2015
    Assignees: Societe Bic, The Commissariat a L'energie Atomique et Aux Energies Alternatives (CEA)
    Inventors: Andrew J. Curello, Michael Curello, Constance R. Stepan