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).
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Publication number: 20240359167Abstract: 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: ApplicationFiled: July 29, 2021Publication date: October 31, 2024Applicant: Toyo Tire CorporationInventors: Norihiko Nakamura, Noritatsu Tsubaki, Guohui Yang
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Publication number: 20240293804Abstract: 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: ApplicationFiled: July 29, 2021Publication date: September 5, 2024Applicant: Toyo Tire CorporationInventors: Norihiko Nakamura, Noritatsu Tsubaki, Guohui Yang
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Publication number: 20240140892Abstract: 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: ApplicationFiled: April 27, 2021Publication date: May 2, 2024Applicant: Toyo Tire CorporationInventors: Norihiko Nakamura, Noritatsu Tsubaki, Guohui Yang
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Publication number: 20240139719Abstract: 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: ApplicationFiled: October 23, 2023Publication date: May 2, 2024Inventors: Hideaki YONEDA, Kazuki YANAGISAWA, Misato MAKI, Masahiro MOHRI, Jumpei YOSHIDA, Noritatsu TSUBAKI
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Publication number: 20240034697Abstract: 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: ApplicationFiled: July 27, 2021Publication date: February 1, 2024Inventors: Ushio Taka, Noritatsu Tsubaki, Guohui Yang
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Publication number: 20230381754Abstract: 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: ApplicationFiled: May 26, 2023Publication date: November 30, 2023Inventors: Mai Mizubayashi, Naoki Tomono, Yuka Katayama, Jingdi Cao, Noritatsu Tsubaki, Guohui Yang
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Publication number: 20230311099Abstract: 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: ApplicationFiled: March 24, 2023Publication date: October 5, 2023Inventors: Osami YAMAMOTO, Chiharu KAIDA, Hajime UTO, Noritatsu TSUBAKI
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Patent number: 10625245Abstract: 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: GrantFiled: March 29, 2017Date of Patent: April 21, 2020Assignee: KAO CORPORATIONInventors: Daisuke Ishihara, Noritatsu Tsubaki, Yoshiharu Yoneyama
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Publication number: 20190054452Abstract: 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: ApplicationFiled: March 29, 2017Publication date: February 21, 2019Applicant: Kao CorporationInventors: Daisuke ISHIHARA, Noritatsu TSUBAKI, Yoshiharu YONEYAMA
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Patent number: 9139489Abstract: 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: GrantFiled: August 8, 2013Date of Patent: September 22, 2015Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, Kyushu University, NATIONAL UNIVERSITY CORPORATION, NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY, NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMAInventors: Miho Yamauchi, Katsutoshi Nagaoka, Katsutoshi Sato, Noritatsu Tsubaki, Akihiro Yuasa, Hideyuki Higashimura, Takeshi Ishiyama
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Publication number: 20150225309Abstract: 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: ApplicationFiled: August 1, 2013Publication date: August 13, 2015Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, National University Corporation University of ToyamaInventors: Noritatsu Tsubaki, Takeshi Ishiyama, Yusuke Shibata, Hideyuki Higashimura, Akihiro Yuasa
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Publication number: 20140045955Abstract: 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: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicants: SUMITOMO CHEMICAL COMPANY , LIMITED, National University Corporation University of Toya ma, NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Miho YAMAUCHI, Katsutoshi NAGAOKA, Katsutoshi SATO, Noritatsu TSUBAKI, Akihiro YUASA, Hideyuki HIGASHIMURA, Takeshi ISHIYAMA
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Publication number: 20110213041Abstract: 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: ApplicationFiled: November 6, 2009Publication date: September 1, 2011Applicants: JX NIPPON OIL & ENERGY CORPORATION, NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMAInventors: Noritatsu Tsubaki, Fuyuki Aida
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Patent number: 7208642Abstract: 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: GrantFiled: February 23, 2001Date of Patent: April 24, 2007Assignee: Nippon Steel CorporationInventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
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Patent number: 7081547Abstract: 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: GrantFiled: March 4, 2004Date of Patent: July 25, 2006Assignee: Nippon Steel CorporationInventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
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Publication number: 20040171704Abstract: 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: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Applicant: Nippon Steel CorporationInventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
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Patent number: 6660889Abstract: 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: GrantFiled: March 12, 2001Date of Patent: December 9, 2003Assignees: Toyota Jidosha Kabushiki Kaisha, Genesis Research Institute, Inc.Inventors: Kaoru Fujimoto, Noritatsu Tsubaki
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Publication number: 20030013930Abstract: 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: ApplicationFiled: October 25, 2001Publication date: January 16, 2003Inventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
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Patent number: 6410814Abstract: 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: GrantFiled: April 3, 2001Date of Patent: June 25, 2002Assignees: Toyota Jidosha Kabushiki Kaisha, Genesis Research Institute, Inc.Inventors: Kaoru Fujimoto, Noritatsu Tsubaki
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Publication number: 20010027259Abstract: 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: ApplicationFiled: April 3, 2001Publication date: October 4, 2001Inventors: Kaoru Fujimoto, Noritatsu Tsubaki