Patents by Inventor Hisashi Katsuno
Hisashi Katsuno 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: 7510648Abstract: The invention provides an optimum method for utilizing a desulfurizing agent for liquid hydrocarbons which can efficiently remove sulfur content from kerosene without performing addition of hydrogen to a low sulfur concentration and which has a prolonged lifetime. The invention provides a desulfurization method which includes removing sulfur content from kerosene by use of a metallic desulfurizing agent without performing addition of hydrogen, characterized in that the method employs desulfurization conditions satisfying the following formula (1): 1.06×Pope0.44<Tope/T50<1.78×Pope0.22??(1) (wherein Tope is operation temperature (° C.); Pope is operation pressure (MPa); and T50 is a temperature per 50 percent recovered as determined by “test method for distillation at atmospheric pressure” stipulated in JIS K2254 “Petroleum products—Determination of distillation characteristics as revised in 1998”).Type: GrantFiled: July 22, 2003Date of Patent: March 31, 2009Assignee: Idemitsu Kosan Co., Ltd.Inventors: Tadashi Kisen, Hiroto Matsumoto, Hisashi Katsuno, Kazuhito Saito
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Publication number: 20090075131Abstract: The invention provides a desulfurizing agent which attains effective removal of sulfur from a hydrocarbon feedstock and/or an oxygen-containing hydrocarbon feedstock so as to attain a considerably low sulfur level and which has a long service life; a process for producing hydrogen for fuel cells, which process includes steam-reforming, partial-oxidation-reforming, or autothermal-reforming of a hydrocarbon feedstock and/or an oxygen-containing hydrocarbon feedstock which has been desulfurized by use of the desulfurizing agent; a fuel cell system employing hydrogen produced through the process. The desulfurizing agent for removing a sulfur compound from a hydrocarbon feedstock and/or an oxygen-containing hydrocarbon feedstock, the agent containing nickel, or a combination of nickel and copper, and silicon, and having a bulk density of 0.95 to 2.0 g/cm3, a pore volume of 0.10 to 0.40 mL/g, a micropore surface area of 100 to 250 m2/g, and an external surface area of 100 m2/g or less.Type: ApplicationFiled: March 20, 2006Publication date: March 19, 2009Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Hisashi Katsuno, Kazuhito Saito
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Patent number: 7268097Abstract: A desulfurizing agent comprising a silica-alumina carrier having an Si/Al mole ratio of 10 or less and nickel carried thereon; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a specific surface area of pores having a pore diameter of 3 nm or less of 100 m2/g or more; an Ni-Cu based desulfurizing agent comprising a carrier and, carried thereon, (A) nickel, (B) copper, and (C) an alkali metal or another metal; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a hydrogen adsorption capacity of 0.4 mmol/g or more; and methods for producing these nickel-based and nickel-copper-based desulfurizing agents. The above desulfurizing agents are capable of adsorbing and removing with good efficiency the sulfur contained in hydrocarbons derived from petroleum to a content of 0.2 wt. ppm or less and have a long service life.Type: GrantFiled: April 2, 2001Date of Patent: September 11, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hisashi Katsuno, Satoshi Matsuda, Kazuhito Saito, Masahiro Yoshinaka
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Publication number: 20060131215Abstract: The invention provides an optimum method for utilizing a desulfurizing agent for liquid hydrocarbons which can efficiently remove sulfur content from kerosene without performing addition of hydrogen to a low sulfur concentration and which has a prolonged lifetime. The invention provides a desulfurization method which includes removing sulfur content from kerosene by use of a metallic desulfurizing agent without performing addition of hydrogen, characterized in that the method employs desulfurization conditions satisfying the following formula (1): 1.06×Pope0.44<Tope/T50<1.78×Pope0.22??(1) (wherein Tope is operation temperature (° C.); Pope is operation pressure (MPa); and T50 is a temperature per 50 percent recovered as determined by “test method for distillation at atmospheric pressure” stipulated in JIS K2254 “Petroleum products—Determination of distillation characteristics”).Type: ApplicationFiled: July 22, 2003Publication date: June 22, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventors: Tadashi Kisen, Hiroto Matsumoto, Hisashi Katsuno, Kazuhito Saito
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Publication number: 20030113258Abstract: A desulfurizing agent comprising a silica-alumina carrier having an Si/Al mole ratio of 10 or less and nickel carried thereon; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a specific surface area of pores having a pore diameter of 3 nm or less of 100 m2/g or more; an Ni-Cu based desulfurizing agent comprising a carrier and, carried thereon, (A) nickel, (B) copper, and (C) an alkali metal or another metal; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a hydrogen adsorption capacity of 0.4 mmol/g or more; and methods for producing these nickel-based and nickel-copper-based desulfurizing agents. The above desulfurizing agents are capable of adsorbing and removing with good efficiency the sulfur contained in hydrocarbons derived from petroleum to a content of 0.2 wt. ppm or less and have a long service life.Type: ApplicationFiled: September 23, 2002Publication date: June 19, 2003Inventors: Hisashi Katsuno, Satoshi Matsuda, Kazuhito Saito, Masahiro Yoshinaka
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Publication number: 20030023120Abstract: A fuel oil for a fuel cell which contains, as a predominant component, a desulfurized light naphtha having a ratio of iso-paraffins to normal paraffins of 1 or more by weight; a fuel oil for a fuel cell, characterized by containing a deeply desulfurized light naphtha and can be used for both a hybrid engine and a fuel cell; and an automobile driving system using the composition. The above fuel oil and fuel oil composition can produce hydrogen with good efficiency, does not affect adversely a reformation catalyst or an electrode of a fuel cell, reduces deterioration of a reformation catalyst or the like, and thus can be used as a fuel oil for a fuel cell suitable for a transportation vehicle such as an automobile. The fuel oil composition can be used also as a fuel oil for a hybrid engine.Type: ApplicationFiled: June 17, 2002Publication date: January 30, 2003Inventors: Hiroto Matsumoto, Hisashi Katsuno, Takashi Akimoto, Hiroshi Hirano, Masashi Iizuka
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Patent number: 5354933Abstract: A process for producing aromatic hydrocarbons comprising contacting at least one hydrocarbon of the paraffin series, olefin series, acetylene series, cyclic paraffin series or cyclic olefin series with a catalyst containing an L-type zeolite containing both platinum components and halogen components supported thereon, the catalyst having a peak intensity of 0.4 or less as determined by X-ray absorption near edge structure (XANES), and the amount of dealuminization in the zeolite is 3% by weight or less, based on the total amount of aluminum therein.Type: GrantFiled: January 18, 1994Date of Patent: October 11, 1994Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hiroshi Ohashi, Hisashi Katsuno, Michio Sugimoto
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Patent number: 5294579Abstract: There are disclosed a new L-type zeolite and a catalyst comprising said zeolite, having a high and persistent catalytic activity for a long-term production of aromatic hydrocarbon and a process for efficiently producing aromatic hydrocarbons from nonaromatic hydrocarbon by the use of the catalyst. The L-type zeolite with both platinum components and halogen components supported thereon, has a peak intensity of 0.4 or less as determined by XANES and a small amount of dealuminization.Type: GrantFiled: October 26, 1992Date of Patent: March 15, 1994Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hiroshi Ohashi, Hisashi Katsuno, Michio Sugimoto
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Patent number: 5196631Abstract: The catalyst is an L-type zeolite with platinum supported thereon, which is then treated with a halogen-containing compound. The catalyst has a long catalyst life and is extremely useful for the preparation of aromatic hydrocarbons from aliphatic hydrocarbons. The process using the catalyst provides a production of aromatic hydrocarbons with a high yield.Type: GrantFiled: November 15, 1991Date of Patent: March 23, 1993Assignee: Research Association for Utilization of Light OilInventors: Takashi Murakawa, Hisashi Katsuno
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Patent number: 5091351Abstract: The catalyst is an L-type zeolite with platinum supported thereon, which is then treated with a halogen-containing compound. The catalyst has a long catalyst life and is extremely useful for the preparation of aromatic hydrocarbons from aliphatic hydrocarbons. The process using the catalyst provides a production of aromatic hydrocarbons with a high yield.Type: GrantFiled: April 21, 1989Date of Patent: February 25, 1992Assignee: Research Association for Utilization of Light OilInventors: Takashi Murakawa, Hisashi Katsuno
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Patent number: 5073652Abstract: The aromatic hydrocarbons rich in benzene, toluene and xylene are prepared from a hydrocarbon feed having from 6 to 12 carbon atoms by feeding the hydrogen in admixture with hydrogen in a ratio ranging from 0 to less than 1 mole with respect to each mole of the hydrocarbon, into contact with a catalyst prepared by depositing at least one metal belonging to group VIII of the periodic table on a macroporous zeolite treated with a halogenated compound. The aromatic hydrocarbons rich in benzene, toluene and xylene are useful as a base for high octane number gasoline or as petrochemical raw materials.Type: GrantFiled: September 21, 1990Date of Patent: December 17, 1991Assignee: Research Association for Utilization of Light OilInventors: Hisashi Katsuno, Michio Sugimoto
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Patent number: 4962251Abstract: A process for producing aromatic hydrocarbons in a high yield by introducing a naphtha fraction the cyclopentane content of which is controlled to not more than 1% by weight, or the methylpentane content is controlled to not more than 10% by weight, in a catalytic reaction tower, and contacting with a catalyst comprising a large pore zeolite containing at least one of Group VII metals of the Periodic Table. In this process, the catalyst cycle is greatly lengthened.Type: GrantFiled: December 28, 1989Date of Patent: October 9, 1990Assignee: Research Association for Utilization of Light OilInventors: Takashi Yamamoto, Toshikazu Yoneda, Hisashi Katsuno, Takashi Murakawa, Nobuyuki Takahashi
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Patent number: 4761512Abstract: A process for producing aromatic hydrocarbons which comprises contacting at least one type of hydrocarbon selected from paraffin, olefin, acetylene, cyclic paraffin and cyclic olefin-based hydrocarbons with a catalyst comprising a L-type zeolite treated with a halogen-containing compound and platinum deposited thereon.Type: GrantFiled: March 31, 1987Date of Patent: August 2, 1988Assignee: Research Association for Utilization of Light OilInventors: Hisashi Katsuno, Takashi Murakawa, Toshikazu Yoneda
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Patent number: 4681865Abstract: A catalyst for production of aromatic hydrocarbons and a process for producing aromatic hydrocarbons from various hydrocarbons using said catalyst are disclosed. The catalyst comprises a L-type zeolite treated with a halogen-containing compound and platinum deposited thereon, which is of high activity and then has a long service life. The process of the present invention using the catalyst enables to produce aromatic hydrocarbons in a yield as high as not less than 80% for a long time. The hydrocarbon feedstock is selected from paraffin, olefin, acetylene, cyclic paraffin, and cyclic olefin-based hydrocarbons.Type: GrantFiled: April 28, 1986Date of Patent: July 21, 1987Assignee: Research Association For Utilization of Light OilInventors: Hisashi Katsuno, Takashi Murakawa, Toshikazu Yoneda