Patents by Inventor Shigenori Nakashizu
Shigenori Nakashizu 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: 20170175003Abstract: There are provided a catalyst composition for producing hydrocarbons and a method for producing hydrocarbons which exhibit a high CO conversion rate, generates minimal amount of gaseous components, and is also capable of efficiently obtaining, from a syngas, a gasoline fraction which is selective for and rich in the components having a high octane number, such as aromatic, naphthenic, olefinic and branched paraffinic hydrocarbons, by using a Fischer-Tropsch synthesis catalyst that contains at least one type of metal exhibiting activity in Fischer-Tropsch reaction and manganese carbonate and a zeolite serving as a solid acid.Type: ApplicationFiled: March 2, 2017Publication date: June 22, 2017Inventors: Kazuhito SATO, Shigenori NAKASHIZU
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Patent number: 9656252Abstract: There are provided a catalyst composition for producing hydrocarbons and a method for producing hydrocarbons which exhibit a high CO conversion rate, generates minimal amount of gaseous components, and is also capable of efficiently obtaining, from a syngas, a gasoline fraction which is selective for and rich in the components having a high octane number, such as aromatic, naphthenic, olefinic and branched paraffinic hydrocarbons, by using a Fischer-Tropsch synthesis catalyst that contains at least one type of metal exhibiting activity in Fischer-Tropsch reaction and manganese carbonate and a zeolite serving as a solid acid.Type: GrantFiled: December 7, 2010Date of Patent: May 23, 2017Assignee: COSMO OIL CO., LTD.Inventors: Kazuhito Sato, Shigenori Nakashizu
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Patent number: 8906222Abstract: The present invention relates to a management method for a wax fraction storage tank that stores a wax fraction produced by Fischer-Tropsch synthesis until the wax fraction is hydrocracked, the management method including maintaining the temperature inside the tank at 90° C. to 130° C. and maintaining the atmosphere inside the tank to be an inert gas atmosphere.Type: GrantFiled: December 11, 2008Date of Patent: December 9, 2014Assignees: Japan Oil, Gas and Metals National Corporation, Inpex Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.Inventors: Shigenori Nakashizu, Yutaka Miyata, Kazuhito Sato
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Patent number: 8598063Abstract: A catalyst for FT synthesis which, in the FT method, is high in a CO conversion and small in the formation of a gaseous component and can stably perform an FT synthesis reaction and enhance the productivity of hydrocarbons, and a method for producing hydrocarbons using the catalyst, are provided. A catalyst for Fischer-Tropsch synthesis comprising a support containing manganese carbonate as a main component, wherein the support contains at least one metal having an activity to the Fischer-Tropsch reaction; and a method for producing hydrocarbons using this catalyst.Type: GrantFiled: May 15, 2009Date of Patent: December 3, 2013Assignee: Cosmo Oil Co., Ltd.Inventors: Kazuhito Sato, Shigenori Nakashizu
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Publication number: 20130289145Abstract: The catalyst for FT synthesis comprises manganese carbonate containing from 10 to 25% by mass of silica in terms of an oxide on the basis of the mass of the catalyst, not more than 6% by mass of an organic binder on the basis of the mass of the catalyst, and from 0.5 to 5% by mass of ruthenium in terms of a metal on the basis of the mass of the catalyst, wherein the catalyst has a surface area of 100 to 210 m2/g and a pore volume of 0.1 to 0.6 ml/g.Type: ApplicationFiled: January 24, 2012Publication date: October 31, 2013Inventors: Yasutomo Miura, Shigenori Nakashizu
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Publication number: 20120208905Abstract: There are provided a catalyst composition for producing hydrocarbons and a method for producing hydrocarbons which exhibit a high CO conversion rate, generates minimal amount of gaseous components, and is also capable of efficiently obtaining, from a syngas, a gasoline fraction which is selective for and rich in the components having a high octane number, such as aromatic, naphthenic, olefinic and branched paraffinic hydrocarbons, by using a Fischer-Tropsch synthesis catalyst that contains at least one type of metal exhibiting activity in Fischer-Tropsch reaction and manganese carbonate and a zeolite serving as a solid acid.Type: ApplicationFiled: December 7, 2010Publication date: August 16, 2012Inventors: Kazuhito Sato, Shigenori Nakashizu
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Publication number: 20110112206Abstract: A catalyst for FT synthesis which, in the FT method, is high in a CO conversion and small in the formation of a gaseous component and can stably perform an FT synthesis reaction and enhance the productivity of hydrocarbons, and a method for producing hydrocarbons using the catalyst, are provided. A catalyst for Fischer-Tropsch synthesis comprising a support containing manganese carbonate as a main component, wherein the support contains at least one metal having an activity to the Fischer-Tropsch reaction; and a method for producing hydrocarbons using this catalyst.Type: ApplicationFiled: May 15, 2009Publication date: May 12, 2011Applicant: COSMO OIL CO., LTD.Inventors: Kazuhito Sato, Shigenori Nakashizu
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Publication number: 20100282328Abstract: The present invention relates to a management method for a wax fraction storage tank that stores a wax fraction produced by Fischer-Tropsch synthesis until the wax fraction is hydrocracked, the management method including maintaining the temperature inside the tank at 90° C. to 130° C. and maintaining the atmosphere inside the tank to be an inert gas atmosphere.Type: ApplicationFiled: December 11, 2008Publication date: November 11, 2010Inventors: Shigenori Nakashizu, Yutaka Miyata, Kazuhito Sato
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Patent number: 7612013Abstract: An object of the present invention is to provide a catalyst which, in the FT process, exhibits a high chain growth probability, and a high catalytic activity, can stably and smoothly promote the reaction, exhibits a high productivity of C5+, and can efficiently produce liquid hydrocarbons, and a process therefore. The invention relates to a hydrocarbon-producing catalyst obtainable by supporting a ruthenium compound on a support composed of a manganese oxide and an aluminum oxide, and which satisfies at least one of characteristics (1) and (2): (1) the catalyst being treated with an aqueous alkaline solution and subsequently subjected to calcination treatment in the air at 150 to 500° C., (2) the aluminum oxide being an aluminum oxide wherein pore volume formed by pores having a pore diameter of 8 nm or more accounts for 50% or more of total pore volume.Type: GrantFiled: February 23, 2005Date of Patent: November 3, 2009Assignees: Japan Oil, Gas and Metals National Corporation, Cosmo Oil Co., Ltd.Inventors: Kazuhito Sato, Shigenori Nakashizu, Osamu Iwamoto, Hiroaki Otsuka
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Publication number: 20080064769Abstract: An object of the present invention is to provide a catalyst which, in the FT process, exhibits a high chain growth probability, and a high catalytic activity, can stably and smoothly promote the reaction, exhibits a high productivity of C5+, and can efficiently produce liquid hydrocarbons, and a process therefor. The invention relates to a hydrocarbon-producing catalyst obtainable by supporting a ruthenium compound on a support composed of a manganese oxide and an aluminum oxide, and which satisfies at least one of characteristics (1) and (2): (1) the catalyst being treated with an aqueous alkaline solution and subsequently subjected to calcination treatment in the air at 150 to 500° C., (2) the aluminum oxide being an aluminum oxide wherein pore volume formed by pores having a pore diameter of 8 nm or more accounts for 50% or more of total pore volume.Type: ApplicationFiled: February 23, 2005Publication date: March 13, 2008Applicants: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION, COSMO OIL CO., LTD.Inventors: Kazuhito Sato, Shigenori Nakashizu, Osamu Iwamoto, Hiroaki Otsuka
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Patent number: 6924316Abstract: A method for producing hydrocarbons, comprising: (I) subjecting to a reduction treatment a catalyst comprising a carrier having provided thereon: 0.1 to 10% by mass of at least one metal selected from an alkali metal, an alkaline earth metal, a rare earth metal and the Group III in the periodic table and 1 to 30% by mass of ruthenium, each based on the catalyst weight, the carrier comprising an aluminum oxide and a manganese oxide having an average number of charges of manganese of exceeding Mn2+, and the catalyst having a specific surface area of from 60 to 350 m2/g and a bulk density of from 0.8 to 1.8 g/ml; (II) dispersing the catalyst in liquid hydrocarbons in a concentration of from 1 to 50 w/v %; and (III) bringing the catalyst into contact with a gas mixture comprising hydrogen and carbon monoxide at a pressure of from 1 to 10 MPa, and (i) at a reaction temperature of from 170 to 300° C.Type: GrantFiled: June 17, 2002Date of Patent: August 2, 2005Assignees: Japan National Oil Corporation, Cosmo Oil Co., Ltd.Inventors: Osamu Iwamoto, Shigenori Nakashizu, Kinjiro Saito, Takashi Suzuki
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Publication number: 20040157938Abstract: A method for producing hydrocarbons, comprising: (I) subjecting to a reduction treatment a catalyst comprising a carrier having provided thereon: 0.1 to 10% by mass of at least one metal selected from an alkali metal, an alkaline earth metal, a rare earth metal and the Group III in the periodic table and 1 to 30% by mass of ruthenium, each based on the catalyst weight, the carrier comprising an aluminum oxide and a manganese oxide having an average number of charges of manganese of exceeding Mn2+, and the catalyst having a specific surface area of from 60 to 350 m2/g and a bulk density of from 0.8 to 1.8 g/ml; (II) dispersing the catalyst in liquid hydrocarbons in a concentration of from 1 to 50 w/v %; and (III) bringing the catalyst into contact with a gas mixture comprising hydrogen and carbon monoxide at a pressure of from 1 to 10 MPa, and (i) at a reaction temperature of from 170 to 300° C.Type: ApplicationFiled: October 27, 2003Publication date: August 12, 2004Inventors: Osamu Iwamoto, Shigenori Nakashizu, Kinjiro Saito, Takashi Suzuki
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Patent number: 5494875Abstract: A carrier suitable for preparing a catalyst for hydrofining hydrocarbon oils which has a high ability to eliminate metals contained in the hydrocarbon oils and an improved metal tolerance as well as said catalyst are provided.The carrier of the present invention is an alumina-containing carrier which shows a peak at 2.theta. of 27.degree. in the powder X-ray diffraction pattern when carrying Mo and Co or one or more other metals selected from among metals of the groups VIA and VIII in the periodic table together with Mo and Co.Type: GrantFiled: July 13, 1993Date of Patent: February 27, 1996Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Kazushi Usui, Shigenori Nakashizu, Kentarou Ishida, Eiko Kogure
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Patent number: 5444033Abstract: A catalyst composition for hydrotreating of hydrocarbon oils is disclosed. The composition comprises a Group VIB metal in an amount of 5-30% by weight, as oxide, and a Group VIII metal in an amount of 1-10% by weight, as oxide, wherein said Group VIB metal and said Group VIII metal are distributed with a concentration gradient which becomes higher from the surface toward the center of a catalyst particle according to the formulas, 0.9>h.sub.2 /h.sub.1 .gtoreq.0, wherein h.sub.1 is the Group VIB metal concentration at the center of the catalyst particle and h.sub.2 at the outermost surface of the catalyst particle, and 0.9>h.sub.4 /h.sub.3 .gtoreq.0, wherein h.sub.3 is the Group VIII metal concentration at the center of the catalyst particle and h.sub.4 at the outermost surface of the catalyst particle.Type: GrantFiled: June 6, 1994Date of Patent: August 22, 1995Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Kazushi Usui, Shigenori Nakashizu, Kentarou Ishida
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Patent number: 4981832Abstract: A catalyst composition for the hydrogenation of heavy hydrocarbon oil, where the catalyst composition comprises at least one active ingredient for hydrogenation supported on a porous alumina carrier and has the following characteristics: (1) the total volume of the pores therein is from 0.4 to 1.0 ml/g; (2) the mean pore diameter of pores having a pore diameter of from 5 to 400 .ANG. is from 60 to 140 .ANG.; (3) the volume of pores having a pore size within .+-.25% of the mean pore diameter of pores having a pore diameter of from 5 to 400 .ANG. is from 60 to 98% of the volume of pores having a pore diameter of from 5 to 400 .ANG.; (4) the volume of pores having a pore diameter of from 400 to 5000 .ANG. is from 2 to 9% of the total volume of the entire pores; (5) the ratio (mm.sup.2 /mm.sup.3) of the outer surface area of a molded catalyst powder to the volume thereof is from 4 to 8; and (6) all points in the interior of the molded catalyst particle are positioned within 0.05 to 0.Type: GrantFiled: July 3, 1989Date of Patent: January 1, 1991Assignee: Research Association for Residual Oil ProcessingInventors: Kinya Tawara, Kazuyoshi Kudoh, Kazushi Usui, Tomohiro Yoshinari, Shigenori Nakashizu
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Patent number: 4368337Abstract: A process is described for converting glycol dialkyl ether without substantial formation of olefin oligomers by reaction with water, comprising reacting a feed glycol di-tertiary alkyl ether represented by structural formula (A) with water using a strongly acidic cation-exchange resin as a catalyst and a reaction temperature of from 40.degree. C. to 150.degree. C. under a pressure of from 1 to 70 kg/cm.sup.2 (absolute pressure) in a molar ratio of water/feed glycol di-tertiary alkyl ether represented by the structural formula (A) of from 0.Type: GrantFiled: March 30, 1981Date of Patent: January 11, 1983Assignee: Maruzen Oil Co., Ltd.Inventors: Kinya Tawara, Hiroki Kamiyama, Shigenori Nakashizu, Takashi Kaneko, Tadahiro Wakui, Tadashi Matsumoto