Patents by Inventor Sachio Asaoka
Sachio Asaoka 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: 20220017436Abstract: Systems and methods for separating a mixture of olefinic and paraffinic C4 components are disclosed. The systems and methods include adsorptive equipment and adsorptive processes for separating components from the mixture.Type: ApplicationFiled: December 17, 2019Publication date: January 20, 2022Applicant: SABIC Global Technologies B.V.Inventors: Mohammed ALDOSSARY, Mohammed Nadim SHAIK, Khalid A. AL-MAJNOUNI, Ahmed ALZENAIDI, Faizur RAHMAN, Arudra PALANI, Sachio ASAOKA, Mohammad Ahmed AL-YAMI, Uwais BADURUTHAMAL
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Patent number: 11123715Abstract: Composite catalysts having bismuth silicate(s) (e.g. Bi2SiO5) and transition metal oxide(s) (e.g. nickel oxide) impregnated on mesoporous silica supports such as SBA-15, mesoporous silica foam, and silica sol. Methods of making and characterizing the composite catalysts as well as processes for oxidatively dehydrogenating alkanes (e.g. n-butane) and/or alkenes (e.g. 1-butene, 2-butene) to corresponding dienes (e.g. butadiene) employing the composite catalysts are also described.Type: GrantFiled: November 22, 2019Date of Patent: September 21, 2021Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Gazali Tanimu, Abdullah M. Aitani, Sachio Asaoka
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Patent number: 11124466Abstract: A method of oxidative dehydrogenating of butane stream comprises contacting the same with a bimetallic catalyst in the presence of oxygen, wherein the bimetallic catalyst containing nickel and bismuth or oxides thereof supported on solid support such as zirconium oxide, low aluminum MFI zeolite, and mesoporous silica foam. Various embodiments of the method of oxidative dehydrogenating the butane-containing hydrocarbon stream and the bimetallic catalyst are also provided.Type: GrantFiled: September 9, 2019Date of Patent: September 21, 2021Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Gazali Tanimu, Ziyauddin S. Qureshi, Sachio Asaoka
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Publication number: 20210154646Abstract: Composite catalysts having bismuth silicate(s) (e.g. Bi2SiO5) and transition metal oxide(s) (e.g. nickel oxide) impregnated on mesoporous silica supports such as SBA-15, mesoporous silica foam, and silica sol. Methods of making and characterizing the composite catalysts as well as processes for oxidatively dehydrogenating alkanes (e.g. n-butane) and/or alkenes (e.g. 1-butene, 2-butene) to corresponding dienes (e.g. butadiene) employing the composite catalysts are also described.Type: ApplicationFiled: November 22, 2019Publication date: May 27, 2021Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Gazali TANIMU, Abdullah M. AITANI, Sachio ASAOKA
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Publication number: 20210070674Abstract: A method of oxidative dehydrogenating of butane stream comprises contacting the same with a bimetallic catalyst in the presence of oxygen, wherein the bimetallic catalyst containing nickel and bismuth or oxides thereof supported on solid support such as zirconium oxide, low aluminum MFI zeolite, and mesoporous silica foam. Various embodiments of the method of oxidative dehydrogenating the butane-containing hydrocarbon stream and the bimetallic catalyst are also provided.Type: ApplicationFiled: September 9, 2019Publication date: March 11, 2021Applicant: King Fahd University of Petroleum and MineralsInventors: Gazali TANIMU, Ziyauddin S. QURESHI, Sachio ASAOKA
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Publication number: 20200188888Abstract: Oxidative dehydrogenation catalysts comprising bismuth and nickel oxides impregnated on mesoporous silica supports such as SBA-15 and mesoporous silica foam. Methods of preparing and characterizing the catalysts as well as processes for oxidatively dehydrogenating n-butane to butadiene using the catalysts are also described. The disclosed catalysts demonstrate higher n-butane conversion and butadiene selectivity than catalysts supported by conventional silica.Type: ApplicationFiled: December 13, 2018Publication date: June 18, 2020Applicant: King Fahd University of Petroleum and MineralsInventors: Palani Aruda, Sulaiman Saleh Al-Khattaf, Sachio Asaoka
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Patent number: 10549267Abstract: Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.Type: GrantFiled: May 3, 2019Date of Patent: February 4, 2020Assignee: CHIYODA CORPORATIONInventors: Shinya Hodoshima, Fuyuki Yagi, Azusa Motomiya, Shuhei Wakamatsu, Sachio Asaoka
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Publication number: 20190255516Abstract: Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.Type: ApplicationFiled: May 3, 2019Publication date: August 22, 2019Applicant: CHIYODA CORPORATIONInventors: Shinya Hodoshima, Fuyuki Yagi, Azusa Motomiya, Shuhei Wakamatsu, Sachio Asaoka
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Patent number: 9821301Abstract: Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.Type: GrantFiled: June 7, 2013Date of Patent: November 21, 2017Assignee: CHIYODA CORPORATIONInventors: Shinya Hodoshima, Fuyuki Yagi, Azusa Motomiya, Shuhei Wakamatsu, Sachio Asaoka
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Publication number: 20170282165Abstract: Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.Type: ApplicationFiled: June 19, 2017Publication date: October 5, 2017Applicant: CHIYODA CORPORATIONInventors: Shinya Hodoshima, Fuyuki Yagi, Azusa Motomiya, Shuhei Wakamatsu, Sachio Asaoka
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Publication number: 20150174565Abstract: Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.Type: ApplicationFiled: June 7, 2013Publication date: June 25, 2015Applicant: CHIYODA CORPORATIONInventors: Shinya Hodoshima, Fuyuki Yagi, Azusa Motomiya, Shuhei Wakamatsu, Sachio Asaoka
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Publication number: 20110201860Abstract: The process for conversion of alkanes to aromatics includes the steps of contacting a feedstock containing alkanes having between two and six carbon atoms per molecule with a composite catalyst to produce an aromatization reaction, and collecting aromatics produced by the reaction. The composite catalyst is a zeolite having a matrix impregnated with a noble metal and an oxide of a transition metal. The noble metal may be Pt, Pd, Rh, Ru, or Ir. The transition metal may be Fe, Co, Ni, Cu, or Zn. The zeolite may be a medium or large pore zeolite, and may have an MFI, MEL, FAU, TON, VPI, MFL, AEI, AFI, MWW, BEA, MOR, LTL, or MTT structure, preferably MFI. The zeolite framework may include silicon, aluminum, and/or gallium. The matrix may be an oxide of magnesium, aluminum, titanium, zirconium, thorium, silicon or boron, and is preferably alumina.Type: ApplicationFiled: February 18, 2010Publication date: August 18, 2011Inventors: Muhammad Naseem Akhtar, Sachio Asaoka, Sulaiman S. Al-Khattaf
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Patent number: 7728046Abstract: A synthesis gas is produced from a carbon-containing starting material such as a coal; a CO-containing gas is separated from the resultant synthesis gas, whereby obtaining a gas containing carbon monoxide and hydrogen; a methanol- and/or dimethyl ether-containing gas is produced from the resultant gas containing carbon monoxide and hydrogen; meanwhile, a H2-containing gas is produced from the CO-containing gas and the H2O-containing gas separated from the lower-paraffin-containing gas by a shift reaction; a lower-paraffin-containing gas containing propane or butane as a main component of hydrocarbons contained therein is produced from the methanol- and/or dimethyl ether-containing gas and the H2-containing gas; and a H2O-containing gas is separated from the resultant lower-paraffin-containing gas, whereby obtaining a liquefied petroleum gas.Type: GrantFiled: August 9, 2005Date of Patent: June 1, 2010Assignee: Japan Gas Synthesize, Ltd.Inventors: Kaoru Fujimoto, Kenji Asami, Sachio Asaoka, Xiaohong Li
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Publication number: 20090042717Abstract: A catalyst for producing a liquefied petroleum gas according to the present invention comprises a Pd-based methanol synthesis catalyst component and a ?-zeolite catalyst component. It can be used in a reaction of carbon monoxide and hydrogen to give a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas, with high activity, high selectivity and high yield. Furthermore, the catalyst has a longer catalyst life with less deterioration.Type: ApplicationFiled: October 11, 2007Publication date: February 12, 2009Applicant: Japan Gas Synthesize, Ltd.Inventors: Kaoru Fujimoto, Kenji Asami, Sachio Asaoka, Xiaohong Li, Qianwen Zhang
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Publication number: 20080319245Abstract: A catalyst for producing a liquefied petroleum gas according to the present invention comprises a methanol synthesis catalyst component in which an olefin-hydrogenation catalyst component is supported on a Zn—Cr-based methanol synthesis catalyst, and a zeolite catalyst component. It can be used in a reaction of carbon monoxide and hydrogen to give a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas, with high activity, high selectivity and high yield. Furthermore, the catalyst has a longer catalyst life with less deterioration.Type: ApplicationFiled: May 30, 2005Publication date: December 25, 2008Inventors: Kaoru Fujimoto, Kenji Asami, Xiaohong Li, Sachio Asaoka, Qianwen Zhang
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Publication number: 20080300327Abstract: A synthesis gas is produced from a carbon-containing starting material such as a coal; a CO-containing gas is separated from the resultant synthesis gas, whereby obtaining a gas containing carbon monoxide and hydrogen; a methanol- and/or dimethyl ether-containing gas is produced from the resultant gas containing carbon monoxide and hydrogen; meanwhile, a H2-containing gas is produced from the CO-containing gas and the H2O-containing gas separated from the lower-paraffin-containing gas by a shift reaction; a lower-paraffin-containing gas containing propane or butane as a main component of hydrocarbons contained therein is produced from the methanol- and/or dimethyl ether-containing gas and the H2-containing gas; and a H2O-containing gas is separated from the resultant lower-paraffin-containing gas, whereby obtaining a liquefied petroleum gas.Type: ApplicationFiled: August 9, 2005Publication date: December 4, 2008Applicant: JAPAN GAS SYNTHESIZE, LTD.Inventors: Kaoru Fujimoto, Kenji Asami, Sachio Asaoka, Xiaohong Li
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Patent number: 7432410Abstract: At least one selected from the group consisting of methanol and dimethyl ether, and hydrogen are reacted in the presence of a catalyst for producing a liquefied petroleum gas in which an olefin-hydrogenation catalyst component is supported on a zeolite, to produce a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas.Type: GrantFiled: August 30, 2004Date of Patent: October 7, 2008Assignee: Japan Gas Synthesize, Ltd.Inventors: Kenji Asami, Kaoru Fujimoto, Sachio Asaoka, Xiaohong Li
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Patent number: 7297825Abstract: A catalyst for producing a liquefied petroleum gas according to the present invention comprises a Pd-based methanol synthesis catalyst component and a ?-zeolite catalyst component. It can be used in a reaction of carbon monoxide and hydrogen to give a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas, with high activity, high selectivity and high yield. Furthermore, the catalyst has a longer catalyst life with less deterioration.Type: GrantFiled: August 30, 2004Date of Patent: November 20, 2007Assignee: Japan Gas Synthesize, Ltd.Inventors: Kaoru Fujimoto, Kenji Asami, Sachio Asaoka, Xiaohong Li, Qianwen Zhang
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Publication number: 20070004954Abstract: A liquefied petroleum gas containing propane or butane as a main component is produced by passing a raw material gas comprising hydrogen and at least one selected from the group consisting of methanol and dimethyl ether through a catalyst layer comprising, in the direction of flowing of the raw material gas, a former catalyst layer comprising a catalyst for synthesizing an olefin-containing gas which is used when producing an olefin-containing gas from at least one selected from the group consisting of methanol and dimethyl ether, and a latter catalyst layer comprising a catalyst for hydrogenating an olefin-containing gas which is used when an olefin is hydrogenated to produce a paraffin.Type: ApplicationFiled: February 18, 2004Publication date: January 4, 2007Inventors: Sachio Asaoka, Xiahong Li, Kaoru Fujimoto, Kenji Asami
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Publication number: 20060242904Abstract: A catalyst for producing a liquefied petroleum gas of this invention comprises a methanol synthesis catalyst component and a zeolite catalyst component, and a liquefied petroleum gas containing propane as a main component is produced by reacting carbon monoxide with hydrogen in the presence of this catalyst.Type: ApplicationFiled: February 25, 2004Publication date: November 2, 2006Inventors: Kaoru Fujimoto, Kenji Asami, Sachio Asaoka, Xiaohong Li