Patents by Inventor Tsutomu Shikada
Tsutomu Shikada 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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Patent number: 8536385Abstract: A process for preparing dimethyl ether or a mixture of dimethyl ether and methanol including passing a raw gas containing carbon monoxide and hydrogen through a catalyst slurry containing a mixture including (a) a medium oil having as a main component, a branched, saturated aliphatic hydrocarbon having 16 to 50 carbon atoms, 1 to 7 tertiary carbon atoms, 0 quaternary carbon atoms, and 1 to 16 carbon atoms in the branched chains bonded to the tertiary carbon atom; and at least one of the tertiary carbon atoms is bonded to hydrocarbon chains with a chain length having 4 or more of carbon atoms in three directions, (b) a methanol synthesis catalyst; (c) a methanol dehydration catalyst; and (d) a methanol shift catalyst or a methanol dehydration/shift catalyst.Type: GrantFiled: February 9, 2012Date of Patent: September 17, 2013Assignees: Inpex Corporation, Japan Petroleum Exploration Co., Ltd., Total Gas & Power Ventures, Toyota Tsusho CorporationInventors: Keiichi Okuyama, Yotaro Ohno, Takashi Ogawa, Seiji Aoki, Tsutomu Shikada, Yasuhiro Mogi, Toshifumi Suzuki, Yasuo Miyoshi, Nobuaki Kobayashi, Kazuro Suzuki
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Publication number: 20120157554Abstract: A medium oil to be used for a synthesis reaction in a slurry-bed reaction procedure. The medium oil has as a main component, a branched, saturated aliphatic hydrocarbon having 16 to 50 carbon atoms, 1 to 7 tertiary carbon atoms, 0 quaternary carbon atoms, and 1 to 16 carbon atoms in the branched chains bonded to the tertiary carbon atoms; and at least one of the tertiary carbon atoms is bonded to hydrocarbon chains with a chain length having 4 or more carbon atoms in three directions, wherein the synthesis reaction in the slurry-bed reaction procedure comprises producing an oxygen-containing organic compound from a raw gas containing carbon monoxide and hydrogen.Type: ApplicationFiled: February 9, 2012Publication date: June 21, 2012Applicants: INPEX Corporation, Toyota Tsusho Corporation, Total Gas & Power Ventures, Japan Petroleum Exploration Co.,Ltd.Inventors: Keiichi OKUYAMA, Yotaro OHNO, Takashi OGAWA, Seiji AOKI, Tsutomu SHIKADA, Yasuhiro MOGI, Toshifumi SUZUKI, Yasuo MIYOSHI, Nobuaki KOBAYASHI, Kazuro SUZUKI
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Publication number: 20100317747Abstract: A medium oil to be used for a synthesis reaction in a slurry-bed reaction procedure. The medium oil has as a main component, a branched, saturated aliphatic hydrocarbon having 16 to 50 carbon atoms, 1 to 7 tertiary carbon atoms, 0 quaternary carbon atoms, and 1 to 16 carbon atoms in the branched chains bonded to the tertiary carbon atoms; and at least one of the tertiary carbon atoms is bonded to hydrocarbon chains with a chain length having 4 or more carbon atoms in three directions.Type: ApplicationFiled: May 7, 2010Publication date: December 16, 2010Inventors: Keiichi Okuyama, Yotaro Ohno, Takashi Ogawa, Seiji Aoki, Tsutomu Shikada, Yasuhiro Mogi, Toshifumi Suzuki, Yasuo Miyoshi, Nobuaki Kobayashi, Kazuro Suzuki
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Publication number: 20060120953Abstract: Disclosed is a process for producing a synthesis gas containing no hydrocarbon and reduced concentration of carbon dioxide among the produced synthesis gas. The process according to the present invention comprises reforming the gas generated by partial combustion of hydrocarbon using a catalyst in a furnace for generating the synthesis gas mounted on a catalyst layer inside the furnace, and producing the synthesis gas comprising hydrogen and carbon monoxide as a main components, and is characterized in that the temperature at outlet of the catalyst layer ranges from 1100 to 1300° C. and the concentration of carbon dioxide in the produced synthesis gas is not more than 10% by volume.Type: ApplicationFiled: March 5, 2004Publication date: June 8, 2006Inventors: Keiichi Okuyama, Takashi Ogawa, Seiji Aoki, Tsutomu Shikada, Toshifumi Suzuki, Yasuo Miyoshi, Nobuaki Konayashi, Kazuno Suzuki
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Patent number: 7033972Abstract: A catalyst for producing dimethyl ether which comprises alumina particles having an average size of 200 ?m or less and a methanol synthesis catalyst layer formed around the alumina particles. The methanol synthesis catalyst is in an amount of 0.05 to 5 parts by weight to 1 part by weight of the alumina particles. Dimethyl ether is produced by the method of forming a slurry by introducing the catalyst into a solvent and introducing a mixed gas comprising carbon monoxide and hydrogen into the slurry.Type: GrantFiled: September 9, 2004Date of Patent: April 25, 2006Assignee: JFE Holdings, Inc.Inventors: Tsutomu Shikada, Yotaro Ohno, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto
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Patent number: 7015255Abstract: (a) A medium oil wherein a main component is a hydrocarbon, and the number of paraffinic carbon atoms is 70% or more with respect to a total number of carbon atoms, (b) a medium oil wherein a main component is a polybutene, (c) a medium oil wherein a main component is a mixture of hydrocarbons of the formula (1): CH3—C(CH3)2—[—CH2—C(CH3)2—]n—CH2—R ??(1) wherein R is —CH(CH3)2 or —C(CH3)?CH2, and n is 1 to 10, (d) a medium oil wherein a main component is a hydrocarbon prepared by a Fischer-Tropsch synthesis, or (e) a medium oil wherein a main component is a branched paraffinic hydrocarbon prepared by hydrogenolysis of a hydrocarbon prepared by a Fischer-Tropsch synthesis, and a process of producing dimethyl ether using the medium oil, are disclosed.Type: GrantFiled: February 29, 2000Date of Patent: March 21, 2006Assignee: JFE Holdings, Inc.Inventors: Keiji Tomura, Takashi Ogawa, Masami Ono, Keiichi Okuyama, Seiji Aoki, Tsutomu Shikada, Masatsugu Mizuguchi, Yotaro Ohno
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Publication number: 20060052647Abstract: A method for producing dimethyl ether comprising forming a slurry by introducing a catalyst for producing dimethyl ether into a solvent and introducing a mixed gas comprising carbon monoxide and hydrogen into the slurry.Type: ApplicationFiled: October 19, 2005Publication date: March 9, 2006Applicant: JFE HOLDINGS, INC.Inventors: Tsutomu Shikada, Yotaro Ohno, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto
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Publication number: 20050038129Abstract: A catalyst for producing dimethyl ether which comprises alumina particles having an average size of 200 ?m or less and a methanol synthesis catalyst layer formed around the alumina particles. The methanol synthesis catalyst is in an amount of 0.05 to 5 parts by weight to 1 part by weight of the alumina particles. Dimethyl ether is produced by the method of forming a slurry by introducing the catalyst into a solvent and introducing a mixed gas comprising carbon monoxide and hydrogen into the slurry.Type: ApplicationFiled: September 9, 2004Publication date: February 17, 2005Applicant: JFE HOLDINGS, INC.Inventors: Tsutomu Shikada, Yataro Ohno, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto
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Patent number: 6800665Abstract: A method for producing dimethyl ether comprising: (a) reacting a raw material gas containing carbon monoxide and hydrogen in the presence of a catalyst to produce a reaction gas including dimethyl ether, carbon dioxide, carbon monoxide and hydrogen; (b) separating the reaction gas from step (a) into carbon monoxide and hydrogen, and into dimethyl ether carbon dioxide; (c) recycling to step (a) the carbon monoxide and the hydrogen which were separated from the reaction gas in step (b); (d) removing the carbon dioxide from the dimethyl ether and the carbon dioxide from step (b) to obtain the dimethyl ether; and the (e) recycling the dimethyl ether from step (d) to step (b).Type: GrantFiled: January 13, 2003Date of Patent: October 5, 2004Assignee: JFE Holdings, Inc.Inventors: Tsutomu Shikada, Yotaro Ohno, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto
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Patent number: 6562306Abstract: An apparatus for producing dimethyl ether comprising: a slurry-bed reactor filled with a dimethyl ether synthesis catalyst and a medium oil therefor; a condenser for condensing a gasified medium oil discharged from the reactor; an adsorber for removing a catalyst-deactivation ingredient from the medium oil condensed in the condenser; and recycle means for recycling the medium oil to the slurry-bed reactor.Type: GrantFiled: June 2, 2000Date of Patent: May 13, 2003Assignee: NKK CorporationInventors: Tsutomu Shikada, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono
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Publication number: 20020132155Abstract: This invention provides a catalyst for producing hydrogen gas from a mixed gas comprising dimethyl ether and water vapor or carbon dioxide gas, which comprises copper, iron, cobalt, palladium, iridium, platinum, rhodium, or nickel as an active component, and a method of producing synthesis gas or hydrogen gas in a high yield at a low temperature. By using the catalyst, fuel cell, electricity generation, reduction of iron ore and the like can be carried out.Type: ApplicationFiled: October 30, 2001Publication date: September 19, 2002Applicant: NKK CorporationInventors: Tsutomu Shikada, Yotaro Ohno, Norio Inoue, Masatsugu Mizuguchi, Keiji Tomura, Takeshi Furukawa, Takuya Kadowaki, Sadayoshi Iwabuchi, Takashi Ogawa, Masami Ono, Kaoru Fujimoto
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Patent number: 6361757Abstract: This invention provides a catalyst for producing hydrogen gas from a mixed gas comprising dimethyl ether and water vapor or carbon dioxide gas, which comprises copper, iron, cobalt, palladium, iridium, platinum, rhodium, or nickel as an active component, and a method of producing synthesis gas or hydrogen gas in a high yield at a low temperature. By using the catalyst, a fuel cell, electricity generation, reduction of iron ore and the like can be carried out.Type: GrantFiled: June 4, 1999Date of Patent: March 26, 2002Assignee: NKK CorporationInventors: Tsutomu Shikada, Yotaro Ohno, Norio Inoue, Masatsugu Mizuguchi, Keiji Tomura, Takeshi Furukawa, Takuya Kadowaki, Sadayoshi Iwabuchi, Takashi Ogawa, Masami Ono, Kaoru Fujimoto
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Patent number: 6221311Abstract: A method for disposing synthetic resinous material comprises: dechlorinating a synthetic resinous material by heating the synthetic resinous material and decomposing the same; and supplying the synthetic resinous material into the furnace as a fuel or a reducing agent. An apparatus comprises: a chlorine removing means for dechlorinating the synthetic resinous material by heating the synthetic resinous material; and a pulverizer for pulverizing the dechlorinated synthetic resinous material, a supply means for supplying the processed synthetic resinous material into a furnace.Type: GrantFiled: October 19, 1999Date of Patent: April 24, 2001Assignee: NKC CorporationInventors: Minoru Asanuma, Tatsuro Ariyama, Yukihiko Asakawa, Koichi Tomioka, Mitsuhiro Fujii, Hiromi Nakamura, Tsutomu Shikada
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Patent number: 6147125Abstract: A method for producing dimethyl ether by forming a slurry by introducing a catalyst into a solvent and introducing a mixed gas comprising carbon monoxide and hydrogen into the slurry. The catalyst comprises alumina particles having an average size of 200 .mu.m or less and a methanol synthesis catalyst layer formed around each of the alumina particles. The methanol synthesis catalyst has a weight ratio of 0.05 to 5 to a weight of the alumina particles. The catalyst is produced by forming a layer comprising a methanol synthesis catalyst around each of the alumina particles.Type: GrantFiled: April 24, 1997Date of Patent: November 14, 2000Assignee: NKK CorporationInventors: Tsutomu Shikada, Yotaro Ohno, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto
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Patent number: 6053962Abstract: Disclosed herein is a scrap melting process for the production of molten iron from scrap (as the source of iron) and of high-calorie exhaust gas (as a valuable fuel gas) from pulverized coal (as the principal source of heat and a partial source of high-calorie exhaust gas) and waste plastics (as the principal source of high-calorie exhaust gas and a partial source of heat). The process comprises charging a shaft furnace (equipped with a burner at the tuyere) with scrap (as the iron source) and coke and optional waste plastics from the furnace top and injecting pulverized coal (or pulverized coal plus waste plastics) and oxygen through the burner under specific conditions, so as to mix together pulverized coal (or pulverized coal plus waste plastics) and oxygen, thereby achieving rapid combustion of pulverized coal etc.Type: GrantFiled: August 11, 1997Date of Patent: April 25, 2000Assignee: NKK CorporationInventors: Tatsuro Ariyama, Takanori Inoguchi, Hidetoshi Noda, Masahiro Matsuura, Tsutomu Shikada, Takeshi Konishi, Ryota Murai
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Patent number: 6048380Abstract: A method for disposing synthetic resinous material comprises: dechlorinating a synthetic resinous material by heating the synthetic resinous material and decomposing the same; and supplying the synthetic resinous material into the furnace as a fuel or a reducing agent. An apparatus comprises: a chlorine removing means for dechlorinating the synthetic resinous material by heating the synthetic resinous material; and a pulverizer for pulverizing the dechlorinated synthetic resinous material, a supply means for supplying the processed synthetic resinous material into a furnace.Type: GrantFiled: May 30, 1997Date of Patent: April 11, 2000Assignee: NKK CorporationInventors: Minoru Asanuma, Tatsuro Ariyama, Yukihiko Asakawa, Koichi Tomioka, Mitsuhiro Fujii, Hiromi Nakamura, Tsutomu Shikada
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Patent number: 5945569Abstract: A catalyst for producing phenols consists essentially of;an iron oxide;a nickel oxide;at least one first oxide selected from the group consisting of a vanadium oxide and a molybdenum oxide; andat least one second oxide selected from the group consisting of an alkali metal oxide and an alkaline earth metal oxide.The catalyst is used to produce phenols from benzoic acid or an alkyl benzoic acid.Type: GrantFiled: May 16, 1996Date of Patent: August 31, 1999Assignee: NKK CorporationInventors: Jun Miki, Minoru Asanuma, Takeshi Konishi, Yakudo Tachibana, Tsutomu Shikada, Aiko Watanabe
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Patent number: 5466720Abstract: In a method of producing dimethyl ether from a mixed gas containing carbon monoxide and either or both of hydrogen and water vapor or a mixed gas of them further containing carbon dioxide, the improvement which comprises using a mixed catalyst prepared by pulverizing a mixed catalyst containing at least zinc oxide, copper oxide or chromium oxide, and aluminum oxide, compressing to bind them by a high pressure press and then pulverizing again or a mixed catalyst comprising at least zinc oxide, copper oxide and alumina, in a slurry state formed by suspending in a solvent. In the method of the invention, the yield of dimethyl ether is high, and the conversion water produced through reaction to hydrogen is high. There is no problem of clogging with catalyst, and mechanical strength is not required. Besides, the applicable range of the ratio of carbon monoxide and hydrogen is wide and the reaction is possible in the presence of carbon dioxide in a high concentration.Type: GrantFiled: October 12, 1994Date of Patent: November 14, 1995Assignees: Kaoru Fujimoto, NKK CorporationInventors: Kaoru Fujimoto, Tsutomu Shikada, Yojiro Yamaoka, Takashi Sumigama
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Patent number: 5389689Abstract: In a method of producing dimethyl ether from a mixed gas containing carbon monoxide and either or both of hydrogen and water vapor or a mixed gas of them further containing carbon dioxide, the improvement which comprises using a mixed catalyst prepared by pulverizing a mixed catalyst containing at least zinc oxide, copper oxide or chrominum oxide, and aluminum oxide, compressing to bind them by a high pressure press and then pulverizing again or a mixed catalyst comprising at least zinc oxide, copper oxide and alumina, in a slurry state formed by suspending in a solvent. In the method of the invention, the yield of dimethyl ether is high, and the conversion water produced through reaction to hydrogen is high. There is no problem of clogging with catalyst, and mechanical strength is not required. Besides, the applicable range of the ratio of carbon monoxide and hydrogen is wide and the reaction is possible in the presence of carbon dioxide in a high concentration.Type: GrantFiled: September 9, 1993Date of Patent: February 14, 1995Assignees: Kaoru Fujimoto, NKK CorporationInventors: Kaoru Fujimoto, Tsutomu Shikada, Yojiro Yamaoka, Takashi Sumigama
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Patent number: 5268512Abstract: A catalyst for producing phenol consisting essentially of a nickel compound supported on a metal oxide carrier, or a catalyst for producing phenol consisting essentially of iron oxide and nickel oxide, and processes for producing phenol using either of the above catalyst. The catalysts of the invention exercise a high conversion of benzoic acid and a high selectivity to phenol, and phenol can be produced in a high yield, particularly in a high space time yield through the processes of the invention using the above catalysts. The above conversion, selectivity and space time yield can be improved by calcining the catalyst at 600.degree. to 900.degree. C.Type: GrantFiled: July 10, 1992Date of Patent: December 7, 1993Assignee: NKK CorporationInventors: Jun Miki, Toshifumi Suzuki, Tsutomu Shikada, Kazuhiko Tate, Yakudo Tachibana