Patents by Inventor Noritatsu Tsubaki

Noritatsu Tsubaki 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: 20240359167
    Abstract: A catalyst according to an embodiment is a catalyst for synthesizing 1,3 -butadiene from ethanol. The catalyst contains a porous silica support made of crystalline silica, Zn, and Zr, and has a multimodal pore size distribution with a peak pore size (Dmicro) of 2 in or less and a peak pore size (Dmeso+macro) of more than 2 nm.
    Type: Application
    Filed: July 29, 2021
    Publication date: October 31, 2024
    Applicant: Toyo Tire Corporation
    Inventors: Norihiko Nakamura, Noritatsu Tsubaki, Guohui Yang
  • Publication number: 20240293804
    Abstract: A catalyst according to an embodiment is a catalyst for synthesizing 1,3-butadiene from ethanol. The catalyst contains a porous silica support made of crystalline silica, ZnO supported on the silica support, and Zr that has interacted with silanol groups of the silica support.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 5, 2024
    Applicant: Toyo Tire Corporation
    Inventors: Norihiko Nakamura, Noritatsu Tsubaki, Guohui Yang
  • Publication number: 20240140892
    Abstract: The ethanol synthesis catalyst is a catalyst for synthesizing ethanol from carbon dioxide, and includes at least one carrier selected from the group consisting of ZrO2, Al2O3, and TiO2; Fe and Cu supported on the carrier; and Na and/or K supported on the carrier. In one embodiment, the catalyst including iron oxide and copper oxide as the Fe and Cu supported on the carrier can be used, hydrogen can be supplied to the catalyst to reduce iron oxide and copper oxide, and a reaction gas containing CO2 can be supplied to the catalyst after reduction to obtain ethanol from CO2.
    Type: Application
    Filed: April 27, 2021
    Publication date: May 2, 2024
    Applicant: Toyo Tire Corporation
    Inventors: Norihiko Nakamura, Noritatsu Tsubaki, Guohui Yang
  • Publication number: 20240139719
    Abstract: A catalyst for methane synthesis is made up from layered double hydroxides represented by the following general formula (1). [M2+1-xM3+x(OH)2]x+[An?x/n·yH2O]??(1) In formula (1), M2+ is Ni2+ and M3+ is Al3+ or Cr3+. Further, An? is CO32?. Furthermore, the term x lies within a range of 0.19 to 0.34 (0.19?x?0.34), and y is 0 or a positive integer.
    Type: Application
    Filed: October 23, 2023
    Publication date: May 2, 2024
    Inventors: Hideaki YONEDA, Kazuki YANAGISAWA, Misato MAKI, Masahiro MOHRI, Jumpei YOSHIDA, Noritatsu TSUBAKI
  • Publication number: 20240034697
    Abstract: The present invention relates to a core-shell composite catalyst, wherein the core is a spinel-structure XYaOb catalyst, wherein X and Y, being different from each other, are metal elements selected from main group II, transition elements and main group III of the Periodic Table of Elements; a is a number between 1-15, preferably between 1-5; b is the number of oxygen atoms required to satisfy the valence of the elements; the shell is a molecular sieve catalyst, preferably selected from one or more of ZSM-5, ZSM-11, ZSM-35 and MOR, more preferably selected from ZSM-5 and ZSM-11. When the core-shell composite catalyst is used for preparing p-xylene directly from syngas in one step, the process is simple and easy to operate; the selectivity toward p-xylene in xylene products is high; the conversion of syngas is high; and the service life of the catalyst is long.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 1, 2024
    Inventors: Ushio Taka, Noritatsu Tsubaki, Guohui Yang
  • Publication number: 20230381754
    Abstract: A hydrocarbon synthesis catalyst is for reacting a raw material gas including hydrogen and carbon dioxide to convert to hydrocarbons, wherein when elemental analysis of a surface of the hydrocarbon synthesis catalyst to be brought into contact with the raw material gas is performed by energy dispersive X-ray spectroscopy (SEM-EDX), 15 to 65% by mass of Fe, 10 to 40% by mass of O, 0.04 to 30% by mass of Na, 0 to 15% by mass of Ni, and 5 to 30% by mass of Cr are detected.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 30, 2023
    Inventors: Mai Mizubayashi, Naoki Tomono, Yuka Katayama, Jingdi Cao, Noritatsu Tsubaki, Guohui Yang
  • Publication number: 20230311099
    Abstract: A carbon dioxide reduction catalyst for hydrogenating carbon dioxide to reduce carbon dioxide to produce a hydrocarbon, containing Fe and Zr as catalytic metals. It is preferable that Ga and Na are further contained as the catalytic metals, and the content of Zr in the catalytic metals is more than 0% by mass and 15% by mass or less.
    Type: Application
    Filed: March 24, 2023
    Publication date: October 5, 2023
    Inventors: Osami YAMAMOTO, Chiharu KAIDA, Hajime UTO, Noritatsu TSUBAKI
  • Patent number: 10625245
    Abstract: A method for producing an alcohol having 8 or more and 22 or less carbon atoms includes the following steps: step 1: forming a porous layer on a surface of a porous material having a pore size mode of 30 nm or more and 200 nm or less to obtain a bimodal carrier; step 2: supporting cobalt on the bimodal carrier obtained in step 1 to obtain a catalyst having peaks of pore distribution in a range of 1 nm or more and 25 nm or less and a range of 30 nm or more and 200 nm or less, respectively; and step 3: reacting carbon monoxide with hydrogen at a gauge pressure of 2 MPa or more and 100 MPa or less in the presence of the catalyst obtained in step 2.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 21, 2020
    Assignee: KAO CORPORATION
    Inventors: Daisuke Ishihara, Noritatsu Tsubaki, Yoshiharu Yoneyama
  • Publication number: 20190054452
    Abstract: A method for producing an alcohol having 8 or more and 22 or less carbon atoms includes the following steps: step 1: forming a porous layer on a surface of a porous material having a pore size mode of 30 nm or more and 200 nm or less to obtain a bimodal carrier; step 2: supporting cobalt on the bimodal carrier obtained in step 1 to obtain a catalyst having peaks of pore distribution in a range of 1 nm or more and 25 nm or less and a range of 30 nm or more and 200 nm or less, respectively; and step 3: reacting carbon monoxide with hydrogen at a gauge pressure of 2 MPa or more and 100 MPa or less in the presence of the catalyst obtained in step 2.
    Type: Application
    Filed: March 29, 2017
    Publication date: February 21, 2019
    Applicant: Kao Corporation
    Inventors: Daisuke ISHIHARA, Noritatsu TSUBAKI, Yoshiharu YONEYAMA
  • Patent number: 9139489
    Abstract: Provided are a method of manufacturing an olefin having 2 to 4 carbon atoms including: reacting a catalyst with synthesis gas through a Fischer-Tropsch reaction, thereby obtaining the olefin having 2 to 4 carbon atoms, in which the catalyst is a catalyst obtained by reducing the iron ion and the cobalt ion in a dispersion liquid or a solution containing the iron ion, the cobalt ion and a dispersant that interacts with the iron ion and the cobalt ion, and a method of manufacturing propylene, which uses the above manufacturing method.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 22, 2015
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, Kyushu University, NATIONAL UNIVERSITY CORPORATION, NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY, NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMA
    Inventors: Miho Yamauchi, Katsutoshi Nagaoka, Katsutoshi Sato, Noritatsu Tsubaki, Akihiro Yuasa, Hideyuki Higashimura, Takeshi Ishiyama
  • Publication number: 20150225309
    Abstract: A method of producing olefin having 2 to 4 carbon atoms, including a process of reacting at least one kind of a catalyst (D) selected from the group consisting of below catalysts (A) to (C) with synthesis gas in the presence of a dispersion medium through a Fischer-Tropsch reaction, in which the catalyst (A) contains iron and one to three kinds of elements selected from the group consisting of alkali metal and alkali earth metal, the catalyst (B) contains cobalt, provided that the catalyst (B) is a catalyst except a catalyst obtained by reducing a cobalt ion and an iron ion in a dispersion liquid or a solution containing the cobalt ion, the iron ion and a dispersant that interacts with the cobalt ion and the iron ion, and the catalyst (C) contains nickel or ruthenium.
    Type: Application
    Filed: August 1, 2013
    Publication date: August 13, 2015
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, National University Corporation University of Toyama
    Inventors: Noritatsu Tsubaki, Takeshi Ishiyama, Yusuke Shibata, Hideyuki Higashimura, Akihiro Yuasa
  • Publication number: 20140045955
    Abstract: Provided are a method of manufacturing an olefin having 2 to 4 carbon atoms including: reacting a catalyst with synthesis gas through a Fischer-Tropsch reaction, thereby obtaining the olefin having 2 to 4 carbon atoms, in which the catalyst is a catalyst obtained by reducing the iron ion and the cobalt ion in a dispersion liquid or a solution containing the iron ion, the cobalt ion and a dispersant that interacts with the iron ion and the cobalt ion, and a method of manufacturing propylene, which uses the above manufacturing method.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicants: SUMITOMO CHEMICAL COMPANY , LIMITED, National University Corporation University of Toya ma, NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Miho YAMAUCHI, Katsutoshi NAGAOKA, Katsutoshi SATO, Noritatsu TSUBAKI, Akihiro YUASA, Hideyuki HIGASHIMURA, Takeshi ISHIYAMA
  • Publication number: 20110213041
    Abstract: The method for manufacturing an unsaturated hydrocarbon and an oxygen-containing compound according to the present invention comprises: a first step of dispersing a catalyst in poly-?-olefin and reducing the catalyst with carbon monoxide or synthesis gas, wherein the catalyst is prepared by supporting iron on a support containing manganese and having an average pore size of 2 to 100 nm; and a second step of bringing the catalyst after reduction in the first step into contact with synthesis gas under the conditions of a reaction temperature of 100 to 600° C. and a reaction pressure of 0.1 to 10 MPa to obtain a reaction product containing an unsaturated hydrocarbon and an oxygen-containing compound.
    Type: Application
    Filed: November 6, 2009
    Publication date: September 1, 2011
    Applicants: JX NIPPON OIL & ENERGY CORPORATION, NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMA
    Inventors: Noritatsu Tsubaki, Fuyuki Aida
  • Patent number: 7208642
    Abstract: A production process and a catalyst are provided, which can be less decreased in activity of the catalyst even when CO2, water and the like are present in the starting material and/or the reaction system, and which can produce a formic ester or a methanol at a low temperature and a low pressure. The present invention relates to a process for producing methanol, comprising reacting carbon monoxide with an alcohol in the presence of an alkali metal-type catalyst, and/or an alkaline earth metal-type catalyst to produce a formic ester, wherein a hydrogenolysis catalyst of formic ester and hydrogen are allowed to be present together in the reaction system to hydrogenate the produced formic ester and thereby obtain a methanol.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: April 24, 2007
    Assignee: Nippon Steel Corporation
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
  • Patent number: 7081547
    Abstract: A process for producing a formic ester comprises reacting carbon monoxide with an alcohol to produce a formic ester, wherein the reaction is performed in the presence of water and/or carbon dioxide and in the presence of (1) an alkali metal-type catalyst other than an alkali metal alkoxide and other than an alkali fluoride, or (2) an alkali metal-type catalyst other than an alkali metal alkoxide and other than an alkali fluoride in combination with an alkaline earth metal-type catalyst.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: July 25, 2006
    Assignee: Nippon Steel Corporation
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
  • Publication number: 20040171704
    Abstract: A production process and a catalyst are provided, which can be less decreased in activity of the catalyst even when CO2, water and the like are present in the starting material and/or the reaction system, and which can produce a formic ester or a methanol at a low temperature and a low pressure.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 2, 2004
    Applicant: Nippon Steel Corporation
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
  • Patent number: 6660889
    Abstract: A Fischer-Tropsch reaction is conducted using a synthesis gas (mixture of carbon monoxide and hydrogen) as a raw material to synthesize hydrocarbons containing a large amount of olefin. These hydrocarbons are separated into a light fraction and a heavy fraction by means of a heat exchanger and an oxo process is conducted with respect to the olefin contained in the light fraction with a cobalt catalyst. As a result, an oxygenated fuel containing alcohol, aldehyde, etc. is manufactured. The oxygenated fuel made by such a manufacturing method is excellent in lubricity and oxidation stability, has a high cetane number, and is also capable of suppressing generation of soot when the oxygenated fuel is combusted.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: December 9, 2003
    Assignees: Toyota Jidosha Kabushiki Kaisha, Genesis Research Institute, Inc.
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki
  • Publication number: 20030013930
    Abstract: A production process and a catalyst are provided, which can be less decreased in activity of the catalyst even when CO2, water and the like are present in the starting material and/or the reaction system, and which can produce a formic ester or a methanol at a low temperature and a low pressure.
    Type: Application
    Filed: October 25, 2001
    Publication date: January 16, 2003
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
  • Patent number: 6410814
    Abstract: A process for synthesis of lower isoparaffins from synthesis gas that is a mixture of hydrogen and carbon monoxide, wherein straight chain hydrocarbons are synthesized while isoparaffins and isoolefins are also produced through decomposition of hydrocarbons having a higher carbon number by use of a solid acid catalyst in the first stage, and isoparaffins are synthesized in the second stage. The straight chain hydrocarbons are produced by contacting the synthesis gas with a Fischer-Tropsch synthesis catalyst that is mixed with a solid acid catalyst for mainly hydrocracking long chain hydrocarbons. The isoparaffins are produced by contacting the straight chain hydrocarbons synthesized in the first stage, with a mixture of a hydrogenation catalyst for hydrogenating olefins and a solid acid catalyst for hydrocracking and isomerizing the straight chain hydrocarbons.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: June 25, 2002
    Assignees: Toyota Jidosha Kabushiki Kaisha, Genesis Research Institute, Inc.
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki
  • Publication number: 20010027259
    Abstract: A process for synthesis of lower isoparaffins from synthesis gas that is a mixture of hydrogen and carbon monoxide, wherein straight chain hydrocarbons are synthesized while isoparaffins and isoolefins are also produced through decomposition of hydrocarbons having a higher carbon number by use of a solid acid catalyst in the first stage, and isoparaffins are synthesized in the second stage. The straight chain hydrocarbons are produced by contacting the synthesis gas with a Fischer-Tropsch synthesis catalyst that is mixed with a solid acid catalyst for mainly hydrocracking long chain hydrocarbons. The isoparaffins are produced by contacting the straight chain hydrocarbons synthesized in the first stage, with a mixture of a hydrogenation catalyst for hydrogenating olefins and a solid acid catalyst for hydrocracking and isomerizing the straight chain hydrocarbons.
    Type: Application
    Filed: April 3, 2001
    Publication date: October 4, 2001
    Inventors: Kaoru Fujimoto, Noritatsu Tsubaki