Patents by Inventor Sosuke HIGUCHI

Sosuke HIGUCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220081374
    Abstract: A method for producing butadiene comprises a step of supplying a raw material gas containing 2-butene and an oxygen-containing gas containing molecular oxygen to a reactor filled with a catalyst to obtain a produced gas containing butadiene, wherein the catalyst contains a composite oxide containing molybdenum and bismuth, and a proportion of cis-2-butene in 2-butene in the raw material gas is 30 to 90 mol %.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 17, 2022
    Applicants: ENEOS Corporation, JSR CORPORATION
    Inventors: Sosuke HIGUCHI, Nobuhiro KIMURA, Mayu SUGIMOTO, Junjie WANG
  • Publication number: 20220064085
    Abstract: A method for producing linear monoolefins comprises a step of contacting a raw material composition containing a first linear monoolefin having 4 to 8 carbon atoms with an isomerization catalyst at 250 to 390° C. in the presence of 20 ppm by volume or more of molecular oxygen and/or 20 ppm by volume or more of water to perform an isomerization reaction for isomerizing at least a part of the first linear monoolefin to a second linear monoolefin having a different double bond position, wherein the catalyst contains zeolite.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 3, 2022
    Applicants: ENEOS Corporation, JSR CORPORATION
    Inventors: Sosuke HIGUCHI, Yukihiro YOSHIWARA, Nobuhiro KIMURA, Mayu SUGIMOTO, Junjie WANG
  • Patent number: 11230513
    Abstract: A process of producing 1,3-butadiene includes: a first step of obtaining gases containing 1,3-butadiene by an oxidative dehydrogenation reaction of a raw material gas with a molecular oxygen-containing gas in the presence of a metal oxide catalyst, the raw material gas containing 1-butene and 2-butene and having a proportion of 2-butene to a sum of 1-butene and 2-butene, which is defined as 100% by volume, being not less than 50% by volume; a second step of cooling the produced gases obtained in the first step; and a third step of separating the produced gases having undergone the second step into molecular oxygen and inert gases and other gases containing 1,3-butadiene by selective absorption to an absorbing solvent, wherein the concentration of methyl vinyl ketone in the produced gases having been cooled in the second step is 0% by volume or more and not more than 0.03% by volume.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: January 25, 2022
    Assignees: JSR Corporation, ENEOS CORPORATION
    Inventors: Mayu Sugimoto, Yuichiro Sasaki, Sosuke Higuchi, Nobuhiro Kimura
  • Publication number: 20200399191
    Abstract: A process of producing 1,3-butadiene includes: a first step of obtaining gases containing 1,3-butadiene by an oxidative dehydrogenation reaction of a raw material gas with a molecular oxygen-containing gas in the presence of a metal oxide catalyst, the raw material gas containing 1-butene and 2-butene and having a proportion of 2-butene to a sum of 1-butene and 2-butene, which is defined as 100% by volume, being not less than 50% by volume; a second step of cooling the produced gases obtained in the first step; and a third step of separating the produced gases having undergone the second step into molecular oxygen and inert gases and other gases containing 1,3-butadiene by selective absorption to an absorbing solvent, wherein the concentration of methyl vinyl ketone in the produced gases having been cooled in the second step is 0% by volume or more and not more than 0.03% by volume.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Applicants: JSR Corporation, ENEOS CORPORATION
    Inventors: Mayu SUGIMOTO, Yuichiro SASAKI, Sosuke HIGUCHI, Nobuhiro KIMURA
  • Patent number: 10647638
    Abstract: A method for producing butadiene comprises a step of obtaining a product gas containing butadiene, by feeding a raw-material gas containing straight-chain butene and an oxygen-containing gas containing molecular oxygen to a reactor and performing oxidative dehydrogenation reaction in the presence of a catalyst, wherein the catalyst comprises a composite oxide containing molybdenum and bismuth, and the concentration of hydrocarbons having 5 or more carbon atoms in the raw-material gas is 0.05 mol % to 7.0 mol %.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: May 12, 2020
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Sosuke Higuchi, Nobuhiro Kimura
  • Patent number: 10407362
    Abstract: A method for producing diene comprises a step 1 of obtaining a straight chain internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; and a step 2 of producing diene from the internal olefin by oxidative dehydrogenation using a first catalyst and a second catalyst, and the first catalyst has a complex oxide including bismuth, molybdenum and oxygen, and the second catalyst includes at least one selected from the group consisting of silica and alumina.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: September 10, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Nobuhiro Kimura, Junji Wakabayashi, Sosuke Higuchi
  • Patent number: 10329218
    Abstract: An isomerization catalyst for isomerizing a first straight-chain olefin to a second straight-chain olefin different therefrom in a double bond position in the presence of 20 ppm by volume or more of molecular oxygen and/or water, comprising: Si; and Al.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: June 25, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Nobuhiro Kimura, Sosuke Higuchi, Junji Wakabayashi, Atsushi Segawa
  • Publication number: 20190134613
    Abstract: An isomerization catalyst for isomerizing a first straight-chain olefin to a second straight-chain olefin different therefrom in a double bond position in the presence of 20 ppm by volume or more of molecular oxygen more and/or water, comprising: Si; Al; and at least one metallic element selected from the Group 1 elements and the Group 2 elements, wherein the molar ratio of Si to Al (Si/Al) is 100 or less.
    Type: Application
    Filed: October 19, 2016
    Publication date: May 9, 2019
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Nobuhiro Kimura, Sosuke Higuchi
  • Publication number: 20180346395
    Abstract: A method for producing butadiene comprises a step of obtaining a product gas containing butadiene, by feeding a raw-material gas containing straight-chain butene and an oxygen-containing gas containing molecular oxygen to a reactor and performing oxidative dehydrogenation reaction in the presence of a catalyst, wherein the catalyst comprises a composite oxide containing molybdenum and bismuth, and the concentration of hydrocarbons having 5 or more carbon atoms in the raw-material gas is 0.05 mol % to 7.0 mol %.
    Type: Application
    Filed: October 19, 2016
    Publication date: December 6, 2018
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Sosuke Higuchi, Nobuhiro Kimura
  • Publication number: 20180170833
    Abstract: An isomerization catalyst for isomerizing a first straight-chain olefin to a second straight-chain olefin different therefrom in a double bond position in the presence of 20 ppm by volume or more of molecular oxygen and/or water, comprising: Si; and Al.
    Type: Application
    Filed: May 27, 2016
    Publication date: June 21, 2018
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Nobuhiro KIMURA, Sosuke HIGUCHI, Junji WAKABAYASHI, Atsushi SEGAWA
  • Publication number: 20180057423
    Abstract: A method for producing diene in which diene can be produced in a high yield by using a raw material including a branched olefin and a straight chain olefin is provided. The method for producing diene comprises: a step 1 of obtaining an internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; a step 2 of isomerizing the internal olefin to a terminal olefin by using an isomerization catalyst; and a step 3 of producing diene from the terminal olefin obtained in the step 2 by oxidative dehydrogenation using a dehydrogenation catalyst.
    Type: Application
    Filed: February 9, 2016
    Publication date: March 1, 2018
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Nobuhiro KIMURA, Junji WAKABAYASHI, Sosuke HIGUCHI
  • Publication number: 20180050970
    Abstract: A method for producing diene comprises a step 1 of obtaining a straight chain internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; and a step 2 of producing diene from the internal olefin by oxidative dehydrogenation using a first catalyst and a second catalyst, and the first catalyst has a complex oxide including bismuth, molybdenum and oxygen, and the second catalyst includes at least one selected from the group consisting of silica and alumina.
    Type: Application
    Filed: February 16, 2016
    Publication date: February 22, 2018
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Nobuhiro KIMURA, Junji WAKABAYASHI, Sosuke HIGUCHI