Patents by Inventor Atsushi Segawa

Atsushi Segawa 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: 20210395172
    Abstract: The present invention provides an indene composition having a content of indene of 80 to 99.5% by mass, in which a content ratio of a hydrocarbon compound having a condensed ring structure of a 5-membered ring and a 6-membered ring, and having 9 or 10 carbon atoms, in a component contained in addition to indene, is 90% by mass or more, and a content of benzonitrile is 0.5% by mass or less, and a content of sulfur is 5 ppm by mass or less.
    Type: Application
    Filed: November 21, 2019
    Publication date: December 23, 2021
    Applicant: ENEOS Corporation
    Inventors: Atsushi SEGAWA, Yasuyuki IWASA, Kazuya MAYUMI
  • Patent number: 11117849
    Abstract: The present invention provides a production method for indene, comprising a dehydrogenation step of obtaining a reaction product containing indene by contacting a raw material composition containing indene with a dehydrogenation catalyst, wherein the dehydrogenation catalyst comprises a support containing aluminum, and a group 14 metal element and platinum supported on the support, a content of the platinum in the dehydrogenation catalyst is 0.6 to 2.5% by mass based on a whole amount of the dehydrogenation catalyst, and an atomic ratio of the group 14 metal element to the platinum in the dehydrogenation catalyst is 4.0 to 20.0.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: September 14, 2021
    Assignee: ENEOS CORPORATION
    Inventors: Nobuhiro Kimura, Atsushi Segawa
  • Patent number: 11066343
    Abstract: Provided is a method for producing p-xylene, comprising: a provision step of providing a C4 fraction comprising at least isobutene as a product formed by fluidized catalytic cracking of a heavy oil fraction; a dimerization step of bringing a first raw material comprising the isobutene into contact with a dimerization catalyst to produce a C8 component comprising a dimer of isobutene; and a cyclization step of bringing a second raw material comprising the C8 component with a dehydrogenation catalyst to produce p-xylene through a cyclization/dehydrogenation reaction of the C8 component.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: July 20, 2021
    Assignee: ENEOS CORPORATION
    Inventors: Yasuhiro Araki, Mayumi Yokoi, Ryoji Ida, Atsushi Segawa, Masanari Akiyama
  • Publication number: 20210047248
    Abstract: The present invention provides a production method for indene, comprising a dehydrogenation step of obtaining a reaction product containing indene by contacting a raw material composition containing indene with a dehydrogenation catalyst, wherein the dehydrogenation catalyst comprises a support containing aluminum, and a group 14 metal element and platinum supported on the support, a content of the platinum in the dehydrogenation catalyst is 0.6 to 2.5% by mass based on a whole amount of the dehydrogenation catalyst, and an atomic ratio of the group 14 metal element to the platinum in the dehydrogenation catalyst is 4.0 to 20.0.
    Type: Application
    Filed: January 8, 2019
    Publication date: February 18, 2021
    Applicant: ENEOS Corporation
    Inventors: Nobuhiro KIMURA, Atsushi SEGAWA
  • Publication number: 20210024440
    Abstract: The present invention provides a production method for indene, comprising a dehydrogenation step of obtaining a reaction product containing indene by contacting a raw material gas containing indane and molecular hydrogen with a dehydrogenation catalyst, wherein the dehydrogenation catalyst comprises a support containing aluminum, and a supported metal supported on the support, the supported metal contains a group 14 metal element and platinum, and an atomic ratio of the group 14 metal element to the platinum in the dehydrogenation catalyst is 8.0 or less.
    Type: Application
    Filed: April 12, 2019
    Publication date: January 28, 2021
    Applicant: ENEOS CORPORATION
    Inventors: Nobuhiro KIMURA, Atsushi SEGAWA
  • Patent number: 10786804
    Abstract: A method for producing a dehydrogenation catalyst, comprising: a step of impregnating a carrier with a first solution having a tin source dissolved therein, so as to have tin supported on the carrier; and a step of impregnating the carrier with a second solution having an active metal source dissolved therein, so as to have the active metal supported on the carrier, wherein the tin source is at least one selected from the group consisting of sodium stannate and potassium stannate, and the active metal source has at least one active metal selected from the group consisting of platinum, ruthenium and iridium, and has no chlorine atom.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: September 29, 2020
    Assignee: ENEOS Corporation
    Inventors: Atsushi Segawa, Nobuhiro Kimura
  • Publication number: 20200038852
    Abstract: A method for producing an unsaturated hydrocarbon comprising: a dehydrogenation step of contacting a raw material gas containing at least one hydrocarbon selected from a group consisting of alkanes and olefins with a dehydrogenation catalyst containing a group 14 metal element and Pt to obtain a product gas containing at least one unsaturated hydrocarbon selected from the group consisting of olefins and conjugated dienes, and a regeneration step of contacting the dehydrogenation catalyst subjected to the dehydrogenation step with a regenerating gas containing molecular oxygen under a temperature condition of 310 to 450° C.
    Type: Application
    Filed: December 27, 2017
    Publication date: February 6, 2020
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Nobuhiro KIMURA, Atsushi SEGAWA, Tatsuya ICHIJO
  • Publication number: 20190263731
    Abstract: Provided is a method for producing p-xylene, comprising: a provision step of providing a C4 fraction comprising at least isobutene as a product formed by fluidized catalytic cracking of a heavy oil fraction; a dimerization step of bringing a first raw material comprising the isobutene into contact with a dimerization catalyst to produce a C8 component comprising a dimer of isobutene; and a cyclization step of bringing a second raw material comprising the C8 component with a dehydrogenation catalyst to produce p-xylene through a cyclization/dehydrogenation reaction of the C8 component.
    Type: Application
    Filed: November 16, 2017
    Publication date: August 29, 2019
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Yasuhiro ARAKI, Mayumi YOKOI, Ryoji IDA, Atsushi SEGAWA, Masanari AKIYAMA
  • Publication number: 20190201874
    Abstract: A method for producing a dehydrogenation catalyst, comprising: a step of impregnating a carrier with a first solution having a tin source dissolved therein, so as to have tin supported on the carrier; and a step of impregnating the carrier with a second solution having an active metal source dissolved therein, so as to have the active metal supported on the carrier, wherein the tin source is at least one selected from the group consisting of sodium stannate and potassium stannate, and the active metal source has at least one active metal selected from the group consisting of platinum, ruthenium and iridium, and has no chlorine atom.
    Type: Application
    Filed: April 14, 2017
    Publication date: July 4, 2019
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Atsushi SEGAWA, Nobuhiro KIMURA
  • 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: 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
  • Patent number: 9340421
    Abstract: A hydrogen supply system for supplying hydrogen comprises a reaction unit for producing a hydrogen-containing gas by a dehydrogenation reaction of a starting material, a heat supply unit for supplying heat to the reaction unit, a removal unit for removing through membrane separation a dehydrogenation product from the hydrogen-containing gas produced by the reaction unit, and a first off-gas line for supplying a part or whole of an off-gas from the removal unit to the reaction unit.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: May 17, 2016
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Atsushi Segawa, Hideshi Iki, Junji Okazaki
  • Publication number: 20150368172
    Abstract: A method of producing an ?,?-unsaturated alcohol at a high conversion ratio and a high selectivity is provided, which comprises continuously supplying a gas mixture containing an ?,?-unsaturated aldehyde and at least an equimolar amount of a secondary alcohol using zirconium oxide as a catalyst to thereby produce the corresponding ?,?-unsaturated alcohol through a hydrogen transfer reaction from the secondary alcohol. According to this method, crotyl alcohol can be produced at a high yield from crotonaldehyde using isopropanol as a hydrogen source, the crotonaldehyde being obtained by dehydrogenating bioethanol to produce acetaldehyde and then subjecting acetaldehyde to aldol condensation.
    Type: Application
    Filed: February 6, 2014
    Publication date: December 24, 2015
    Inventors: Atsushi SEGAWA, Daisuke WATANABE, Junji WAKABAYASHI
  • Publication number: 20150259201
    Abstract: A hydrogen supply system for supplying hydrogen comprises a reaction unit for producing a hydrogen-containing gas by a dehydrogenation reaction of a starting material, a heat supply unit for supplying heat to the reaction unit, a removal unit for removing through membrane separation a dehydrogenation product from the hydrogen-containing gas produced by the reaction unit, and a first off-gas line for supplying a part or whole of an off-gas from the removal unit to the reaction unit.
    Type: Application
    Filed: October 1, 2013
    Publication date: September 17, 2015
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Atsushi Segawa, Hideshi Iki, Junji Okazaki
  • Patent number: 8999880
    Abstract: A method for producing a dehydrogenation catalyst including an immersion step of impregnating an alumina layer of an alumina carrier with a platinum solution containing hexahydroxo platinate (IV) ions with an immersion method, wherein the alumina carrier has the alumina layer formed by anodic oxidation on at least a part of the surface of an aluminum support; and a calcination step of calcining the alumina carrier subjected to the immersion step to provide a dehydrogenation catalyst.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: April 7, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Nanako Obata, Atsushi Segawa, Yuichiro Hirano
  • Patent number: 8993476
    Abstract: A method for producing a dehydrogenation catalyst including an immersion step of impregnating an alumina layer of an alumina carrier with a platinum solution containing hexahydroxo platinate (IV) ions with an immersion method, wherein the alumina carrier has the alumina layer formed by anodic oxidation on at least a part of the surface of an aluminum support; and a calcination step of calcining the alumina carrier subjected to the immersion step to provide a dehydrogenation catalyst.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: March 31, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Nanako Obata, Atsushi Segawa, Yuichiro Hirano
  • Publication number: 20140348714
    Abstract: Provided is a hydrogen station that supplies hydrogen, including: a shaft power generation unit that generates shaft power and heat; a reactor that obtains hydrogen by causing a reaction in a raw material using the heat supplied from the shaft power generation unit; and a compressor that compresses the hydrogen obtained by the reactor, wherein the shaft power generation unit drives the other devices and drives the compressor by applying the shaft power thereto.
    Type: Application
    Filed: October 11, 2012
    Publication date: November 27, 2014
    Inventors: Atsushi Segawa, Hideshi Iki, Hirofumi Konno
  • Publication number: 20140256541
    Abstract: A method for producing a dehydrogenation catalyst including an immersion step of impregnating an alumina layer of an alumina carrier with a platinum solution containing hexahydroxo platinate (IV) ions with an immersion method, wherein the alumina carrier has the alumina layer formed by anodic oxidation on at least a part of the surface of an aluminum support; and a calcination step of calcining the alumina carrier subjected to the immersion step to provide a dehydrogenation catalyst.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Nanako OBATA, Atsushi SEGAWA, Yuichiro HIRANO
  • Publication number: 20140121098
    Abstract: A method for producing a dehydrogenation catalyst including an immersion step of impregnating an alumina layer of an alumina carrier with a platinum solution containing hexahydroxo platinate (IV) ions with an immersion method, wherein the alumina carrier has the alumina layer formed by anodic oxidation on at least a part of the surface of an aluminum support; and a calcination step of calcining the alumina carrier subjected to the immersion step to provide a dehydrogenation catalyst.
    Type: Application
    Filed: October 10, 2013
    Publication date: May 1, 2014
    Inventors: Nanako OBATA, Atsushi SEGAWA, Yuichiro HIRANO
  • Patent number: 8043989
    Abstract: A system is provided for desulfurizing a hydrocarbon fuel containing a light amount of methanol and a slight amount of water. The desulfurization system uses a Y-type zeolite-based desulfurizing agent containing at least copper arranged upstream of the system and an X-type zeolite-based desulfurizing agent containing at least silver arranged downstream of the system and thus can maintain desulfurization effect for a long period of time.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 25, 2011
    Assignee: Nippon Oil Corporation
    Inventors: Yoshiyuki Nagayasu, Atsushi Segawa, Kazunori Miyazawa, Yoshihiro Kobori