Patents Assigned to Energy Research Corporation
  • Patent number: 11819831
    Abstract: A Ni-based steam reforming catalyst having excellent carbon deposition resistance and sintering resistance is provided. The steam reforming catalyst is constituted by including nickel as a catalytically active metal, lanthanum as a first co-catalyst component, manganese as a second co-catalyst component, and a carrier containing ?-alumina as a main component.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: November 21, 2023
    Assignee: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Osamu Okada, Kana Motomura, Junya Miyata, Chika Takada, Itsuro Kuwasako, Manami Kawano
  • Publication number: 20230201762
    Abstract: A gas separation method is provided. The method includes using a gas separation apparatus comprising a selective permeable membrane and a first and second treatment chambers separated by the selective permeable membrane. A mixed gas containing a gas to be separated is supplied into (or generated within) the first treatment chamber, and the gas to be separated is separated from the mixed gas by having the gas to be separated permeate from the first/second treatment chamber side of the selective permeable membrane, which has a stacked laminated structure of a hydrophilic porous membrane, a separation-functional layer, and a first protective membrane, and the separation-functional layer includes a layer of hydrophilic polymer containing water, and the first treatment chamber is provided on a hydrophilic porous membrane side of the selective permeable membrane and the second treatment chamber is provided on the first protective membrane side of the selective permeable membrane.
    Type: Application
    Filed: May 10, 2021
    Publication date: June 29, 2023
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu OKADA, Nobuaki HANAI
  • Publication number: 20230105883
    Abstract: Porous alumina having excellent heat resistance and coking resistance is provided. The porous alumina can include silica and barium oxide added to aluminum oxide, wherein a ratio of SiO2 addition amount to a total mass of aluminum oxide and SiO2 addition amount is defined as SiO2 addition ratio (mass %), a ratio of BaO addition amount to a total mass of aluminum oxide and SiO2 addition amount is defined as BaO addition ratio (mass %), when the SiO2 addition ratio is within a range of 3 mass % or less and the BaO addition ratio is within a range of 14 mass % or less, the silica and the barium oxide are respectively added to the aluminum oxide so that a specific surface area of the porous alumina measured by a measuring method after heat treatment is equal to or larger than a reference specific surface area of reference porous alumina.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 6, 2023
    Applicants: Renaissance Energy Research Corporation, NATIONAL INSTITUTE OF TECHNOLOGY
    Inventors: Akira HASEGAWA, Yoshihiro KADOMA, Osamu OKADA, Kana MOTOMURA, Shizuka OGASAWARA, Hiromi NAKAMURA, Tamotsu NONOUCHI, Kaori MATSUDA
  • Patent number: 11534722
    Abstract: A gas separation apparatus includes a separation membrane module including at least one gas separation membrane element in a housing, a casing for blocking external air, and a heat source unit for adjusting a temperature of a heat medium with which the casing is filled. The casing holds greater than or equal to two separation membrane modules.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: December 27, 2022
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Nobutaka Kodama, Takehiro Nakasuji, Osamu Okada, Masaaki Teramoto, Nobuaki Hanai
  • Patent number: 11338242
    Abstract: Provided is a method for removing CO2 comprising: supplying a gas to be processed containing CO2, N2 and O2 to a feed side of a CO2/O2 selective permeation membrane within a temperature range of 15° C. to 50° C.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 24, 2022
    Assignees: Renaissance Energy Research Corporation, Japan Aerospace Exploration Agency
    Inventors: Osamu Okada, Masaaki Teramoto, Tamotsu Nonouchi, Nobuaki Hanai, Junya Miyata, Yasato Kiyohara, Masato Sakurai, Shinichi Furukawa
  • Patent number: 11247169
    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: Grant
    Filed: October 15, 2020
    Date of Patent: February 15, 2022
    Assignee: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Hideaki Matsuo
  • Patent number: 11214746
    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: Grant
    Filed: August 16, 2018
    Date of Patent: January 4, 2022
    Assignee: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Osamu Okada, Nobuaki Hanai, Junya Miyata, Hideaki Matsuo
  • Publication number: 20210291151
    Abstract: A Ni-based steam reforming catalyst having excellent carbon deposition resistance and sintering resistance is provided. The steam reforming catalyst is constituted by including nickel as a catalytically active metal, lanthanum as a first co-catalyst component, manganese as a second co-catalyst component, and a carrier containing ?-alumina as a main component.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 23, 2021
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu OKADA, Kana MOTOMURA, Junya MIYATA, Chika TAKADA, Itsuro KUWASAKO, Manami KAWANO
  • Publication number: 20210023499
    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: October 15, 2020
    Publication date: January 28, 2021
    Applicant: Renaissance Energy Research Corporation
    Inventors: Osamu OKADA, Nobuaki HANAI, Peng YAN, Hideaki MATSUO
  • Publication number: 20210008491
    Abstract: Provided is a method for removing CO2 comprising: supplying a gas to be processed containing CO2, N2 and O2 to a feed side of a CO2/O2 selective permeation membrane within a temperature range of 15° C. to 50° C.
    Type: Application
    Filed: December 27, 2017
    Publication date: January 14, 2021
    Applicants: Renaissance Energy Research Corporation, Japan Aerospace Exploration Agency
    Inventors: Osamu OKADA, Masaaki TERAMOTO, Tamotsu NONOUCHI, Nobuaki HANAI, Junya MIYATA, Yasato KIYOHARA, Masato SAKURAI, Shinichi FURUKAWA
  • Patent number: 10858248
    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: Grant
    Filed: April 27, 2018
    Date of Patent: December 8, 2020
    Assignee: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Yasato Kiyohara, Sayaka Ishii, Megumi Nagano
  • 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