Patents Assigned to Energy Research Corporation
  • Patent number: 10744454
    Abstract: Provided are a CO2 gas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation membrane module including the same, the CO2 gas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: August 18, 2020
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara
  • Publication number: 20200239797
    Abstract: A power generation system comprises a fuel gas supply device 13 for controlling methane concentration or carbon dioxide concentration in a mixed gas MG containing methane and carbon dioxide within a setting range for the concentration in the fuel gas of a gas engine 11, and for supplying the mixed gas MG to the gas engine 11 as the fuel gas, and a gas concentration sensor 14 for measuring the carbon dioxide concentration or the methane concentration of the mixed gas MG.
    Type: Application
    Filed: August 16, 2018
    Publication date: July 30, 2020
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu OKADA, Nobuaki HANAI, Junya MIYATA, Hideaki MATSUO
  • Patent number: 10507434
    Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: December 17, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara, Atsushi Yamamoto
  • Patent number: 10441917
    Abstract: Provided is a method for separating, from a raw gas containing a specific gas, the specific gas using a gas separation membrane module. The gas separation membrane module includes a housing and a gas separation membrane element enclosed in the housing. The gas separation membrane element includes a gas separation membrane including a hydrophilic resin composition layer for selectively allowing for permeation of the specific gas. The method includes the steps of: increasing pressure in an interior of the gas separation membrane module; increasing a temperature in the interior of the gas separation membrane module; and feeding a raw gas to the interior of the gas separation membrane module in that order.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 15, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Takenori Kitaura, Hisaaki Miyamoto, Yudai Ota, Takehiro Nakasuji, Osamu Okada, Masaaki Teramoto
  • Patent number: 10245552
    Abstract: A carbon dioxide separation method including the steps of: feeding a mixed gas that contains at least carbon dioxide and water vapor to a carbon dioxide separation membrane that contains a hydrophilic resin and a carbon dioxide carrier; separating, from the mixed gas, a permeation gas that contains the carbon dioxide by use of the carbon dioxide separation membrane; adjusting temperature of gas which contacts the carbon dioxide separation membrane so that a temperature difference between the mixed gas and the permeation gas is not lower than 0° C. and not higher than 20° C.; and adjusting pressure of the permeation gas, the pressure of the permeation gas and water vapor partial pressure in the mixed gas satisfying the following formula (1): 2.5 kPaA<(pressure of permeation gas)<(water vapor partial pressure in mixed gas) . . . (1).
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 2, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Nobutaka Kodama, Emi Okubo, Osamu Okada, Nobuaki Hanai
  • Publication number: 20190083926
    Abstract: Provided is a method for separating, from a raw gas containing a specific gas, the specific gas using a gas separation membrane module. The gas separation membrane module includes a housing and a gas separation membrane element enclosed in the housing. The gas separation membrane element includes a gas separation membrane including a hydrophilic resin composition layer for selectively allowing for permeation of the specific gas. The method includes the steps of: increasing pressure in an interior of the gas separation membrane module; increasing a temperature in the interior of the gas separation membrane module; and feeding a raw gas to the interior of the gas separation membrane module in that order.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 21, 2019
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Takenori KITAURA, Hisaaki MIYAMOTO, Yudai OTA, Takehiro NAKASUJI, Osamu OKADA, Masaaki TERAMOTO
  • Patent number: 10232319
    Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: March 19, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara, Atsushi Yamamoto
  • Publication number: 20190060826
    Abstract: A biogas combustion system that obtains a stable output and saves energy is realized. A combustion system comprises a separation portion 14 that removes carbon dioxide from a treatment target gas containing a mixture gas containing methane as a main component and containing carbon dioxide to obtain methane gas of a high purity in which at least a content of carbon dioxide has been reduced, and a combustion portion 15 that combusts the methane gas. The separation portion 14 includes a first treatment chamber 11 and a second treatment chamber 12 separated from each other by a separation membrane 13 therebetween.
    Type: Application
    Filed: February 17, 2017
    Publication date: February 28, 2019
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu OKADA, Nobuaki HANAI, Peng YAN, Hideaki MATSUO
  • Publication number: 20180244520
    Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Applicant: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: OSAMU OKADA, NOBUAKI HANAI, PENG YAN, JUNYA MIYATA, YASATO KIYOHARA, SAYAKA ISHII, MEGUMI NAGANO
  • Publication number: 20180185784
    Abstract: A carbon dioxide separation method including the steps of: feeding a mixed gas that contains at least carbon dioxide and water vapor to a carbon dioxide separation membrane that contains a hydrophilic resin and a carbon dioxide carrier; separating, from the mixed gas, a permeation gas that contains the carbon dioxide by use of the carbon dioxide separation membrane; adjusting temperature of gas which contacts the carbon dioxide separation membrane so that a temperature difference between the mixed gas and the permeation gas is not lower than 0° C. and not higher than 20° C.; and adjusting pressure of the permeation gas, the pressure of the permeation gas and water vapor partial pressure in the mixed gas satisfying the following formula (1): 2.5 kPaA<(pressure of permeation gas)<(water vapor partial pressure in mixed gas) . . . (1).
    Type: Application
    Filed: June 17, 2016
    Publication date: July 5, 2018
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Nobutaka KODAMA, Emi OKUBO, Osamu OKADA, Nobuaki HANAI
  • Publication number: 20180186631
    Abstract: A shift conversion catalyst layer is divided into at least two front and back stages. A first catalyst and a second catalyst are provided on the upstream side and the downstream side, respectively. The first catalyst has a property that a carbon monoxide conversion rate decreases with an increase in carbon dioxide concentration in a supplied reaction gas at a constant carbon monoxide concentration in the supplied reaction gas and a constant reaction temperature. The first catalyst is combined with the second catalyst such that the degree of decrease in carbon monoxide conversion rate with respect to an increase in carbon dioxide concentration in the supplied reaction gas in the second catalyst is lower than that in the first catalyst. Whereby, the conversion rate of a carbon monoxide concentration of a carbon monoxide shift conversion apparatus can be improved without increasing the used amount of a shift conversion catalyst.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Applicant: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: OSAMU OKADA, MAIKO NAKAYAMA, KAORI MORIMOTO, CHIHIRO ITO, KATSUTOSHI NAGAOKA
  • Patent number: 9975105
    Abstract: A system for producing an oxygenate, comprising: a desulfurization apparatus for contacting a raw material gas comprising hydrogen and carbon monoxide with a desulfurizing agent comprising copper; and a synthesis apparatus for contacting the raw material gas treated by the desulfurizing apparatus with an oxygenate-synthesis catalyst comprising rhodium.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 22, 2018
    Assignees: SEKISUI CHEMICAL CO., LTD., RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Toshihito Miyama, Tomoaki Nishino, Osamu Okada, Tamotsu Nonouchi
  • Patent number: 9833746
    Abstract: Provided is a facilitated CO2 transport membrane having improved CO2 permeance and improved CO2 selective permeability. The facilitated CO2 transport membrane includes a separation-functional membrane comprising a hydrophilic polymer gel membrane which contains a CO2 carrier and a CO2 hydration catalyst, wherein the hydrophilic polymer is a copolymer including a first structural unit derived from an acrylic acid cesium salt or an acrylic acid rubidium salt and a second structural unit derived from vinyl alcohol. More preferably, the CO2 hydration catalyst has catalytic activity at a temperature of 100° C. or higher.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 5, 2017
    Assignees: Renaissance Energy Research Corporation, Sumitomo Chemical Company, Limited
    Inventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Takehiro Nakasuji, Hayato Sugiyama
  • Patent number: 9827535
    Abstract: A steam permselective membrane containing a crosslinked hydrophilic polymer is provided. The steam permselective membrane may further contain at least one alkali metal compound selected from the group consisting of a cesium compound, a potassium compound and a rubidium compound.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: November 28, 2017
    Assignee: Renaissance Energy Research Corporation
    Inventors: Osamu Okada, Eiji Kamio, Nobuaki Hanai, Miwako Obama
  • Publication number: 20170333833
    Abstract: Provided are a CO2 gas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation membrane module including the same, the CO2 gas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).
    Type: Application
    Filed: November 17, 2015
    Publication date: November 23, 2017
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai OTA, Yoshihito OKUBO, Osamu OKADA, Nobuaki HANAI, Peng YAN, Yasato KIYOHARA
  • Patent number: 9744522
    Abstract: Provided is a production method for a porous alumina material, comprising the steps of: mixing an alkoxysilane solution that comprises an alkoxysilane, a mixed solvent comprising water and an alcohol, and an inorganic acid, with an aluminum solution comprising an aluminum compound and water, to prepare a mixed solution in which the aluminum compound and the alkoxysilane are dissolved in the mixed solvent; co-precipitating aluminum hydroxide with a silicon compound in the mixed solution, to form a precipitate; and baking the precipitate to form a porous alumina material comprising aluminum oxide and silicon oxide.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 29, 2017
    Assignees: Renaissance Energy Research Corporation, Institute of National Colleges of Technology, Japan
    Inventors: Akira Hasegawa, Osamu Okada, Chihiro Ito
  • Publication number: 20170232398
    Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 17, 2017
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai OTA, Yoshihito OKUBO, Osamu OKADA, Nobuaki HANAI, Peng YAN, Yasato KIYOHARA, Atsushi YAMAMOTO
  • Patent number: 9597632
    Abstract: Disclosed is a CO2 permselective membrane 1 having an amino acid ionic liquid and a porous membrane impregnated with the amino acid ionic liquid, wherein the amino acid ionic liquid contains a certain range of water.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: March 21, 2017
    Assignees: Renaissance Energy Research Corporation, National University Corporation Kobe University
    Inventors: Osamu Okada, Nobuaki Hanai, Eiji Kamio, Shohei Kasahara, Hideto Matsuyama
  • Publication number: 20170066649
    Abstract: The present invention provides a CO shift conversion device and a CO shift conversion method which improves CO conversion rate without increasing usage of a shift conversion catalyst. A CO shift conversion device includes: a CO shift converter 10 having a catalyst layer 5 composed of a CO shift conversion catalyst and performing CO shift conversion process on a gas flowing inside; and a CO2 remover 51 removing CO2 contained in a gas introduced. The catalyst layer 5 is composed of a CO shift conversion catalyst having a property that a CO conversion rate decreases with an increase of the concentration of CO2 contained in a gas flowing inside. The concentration of CO2 contained in a gas G0 to be processed is lowered by the CO2 remover 51 and, after that, the resultant gas is supplied to the CO shift converter 10 where it is subjected to the CO shift conversion process.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu Okada, Kaori Morimoto, Chihiro Ito
  • Publication number: 20160272494
    Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.
    Type: Application
    Filed: June 1, 2016
    Publication date: September 22, 2016
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu OKADA, Nobuaki HANAI, Peng YAN, Junya MIYATA, Yasato KIYOHARA, Sayaka ISHII, Megumi NAGANO