Patents by Inventor Yahua Shi
Yahua Shi 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).
-
Patent number: 8883669Abstract: The present invention relates to a hydrocracking catalyst comprising an acidic silica-alumina, an optional alumina, an effective quantity of at least one VIII Group metal component(s), an effective quantity of at least one VIB Group metal component(s) and an organic additive, wherein the organic additive is one or more selected from the group consisting of an oxygen-containing or nitrogen-containing organic compound, and the molar ratio of the organic additive to the VIII Group metal component(s) is 0.01-10. The present invention relates further to a process for producing the hydrocracking catalyst and use of the catalyst in a process for hydrocracking hydrocarbon oils. The hydrocracking catalyst provided according to the present invention shows a higher activity for aromatic hydrosaturating and ring-opening reaction, as compared with the prior art hydrocracking catalyst.Type: GrantFiled: December 3, 2010Date of Patent: November 11, 2014Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Yichao Mao, Hong Nie, Jianwei Dong, Zhenlin Xiong, Zhihai Hu, Yahua Shi, Dadong Li
-
Patent number: 8697598Abstract: The present invention provides a hydrogenation catalyst, containing a carrier, metal components of nickel, molybdenum and tungsten supported thereon, and an adjuvant component selected from the group consisting of fluorine and phosphor and combination thereof. In another embodiment, the present invention provides a hydrogenation catalyst, containing a carrier and metal components of nickel, molybdenum and tungsten supported thereon, wherein said carrier contains a molecular sieve. The present invention provides further use of said catalyst in the process for hydrogenating hydrocarbon oil. In comparison with a hydrogenation catalyst according to the prior art, the catalyst according to the present invention has a much higher activity.Type: GrantFiled: April 20, 2006Date of Patent: April 15, 2014Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SINOPECInventors: Xiangyun Long, Xuefen Liu, Hong Nie, Kui Wang, Jing Xin, Qinghe Liu, Xiaodong Gao, Zhihai Hu, Yahua Shi, Dadong Li
-
Patent number: 8529753Abstract: Disclosed is a combined process for hydrotreating and catalytic cracking of residue, wherein the residue, catalytic cracking heavy cycle oil with acidic solid impurity being removed, optional distillate oil and adistillate of catalytic cracking slurry oil from which the acidic solid impurity is removed are fed into residue hydrotreating unit, the hydrogenated residue obtained and optional vacuum gas oil are fed into catalytic cracking unit to obtain various products; the catalytic cracking heavy cycle oil from which the acidic solid impurity is removed is circulated to the residue hydrotreating unit; the catalytic cracking slurry oil is separated by distilling, the distillate of the catalytic cracking slurry oil after removing off the acidic solid impurity is circulated to the residue hydrotreating unit.Type: GrantFiled: December 27, 2007Date of Patent: September 10, 2013Assignees: Research Institute of Petroleum Processing, Sinopec, China Petroleum & Chemical CorporationInventors: Chuanfeng Niu, Lishun Dai, Yongcan Gao, Dadong Li, Yahua Shi, Hong Nie, Qinghe Yang
-
Patent number: 8334231Abstract: The present invention provides a hydrocracking catalyst comprising a moulded composite support of a zeolite molecular sieve with alumina, at least one of VIII Group metal components, at least one of VIB Group metal components and an organic additive; said organic additive is one or more compounds selected from the group consisting of oxygen-containing or nitrogen-containing organic compounds; the content of said zeolite molecular sieve is 3˜60 wt %, the content of said alumina is 10˜80 wt %, and the content of said organic additive is 0.1˜40 wt % based on the weight of said catalyst; the content of said VIII Group metal component is 1˜15 wt % and the content of said VIB Group metal component is 5˜40 wt % as calculated on oxide and based on the weight of said catalyst. The present invention relates also to a preparation method of said hydrocracking catalyst and use of the catalyst in the hydrocracking process of hydrocarbon oil.Type: GrantFiled: April 26, 2006Date of Patent: December 18, 2012Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, SINOPECInventors: Yichao Mao, Hong Nie, Jianwei Dong, Zhenlin Xiong, Zhihai Hu, Yahua Shi, Dadong Li
-
Publication number: 20110127192Abstract: The present invention relates to a hydrocracking catalyst comprising an acidic silica-alumina, an optional alumina, an effective quantity of at least one VIII Group metal component(s), an effective quantity of at least one VIB Group metal component(s) and an organic additive, wherein the organic additive is one or more selected from the group consisting of an oxygen-containing or nitrogen-containing organic compound, and the molar ratio of the organic additive to the VIII Group metal component(s) is 0.01-10. The present invention relates further to a process for producing the hydrocracking catalyst and use of the catalyst in a process for hydrocracking hydrocarbon oils. The hydrocracking catalyst provided according to the present invention shows a higher activity for aromatic hydrosaturating and ring-opening reaction, as compared with the prior art hydrocracking catalyst.Type: ApplicationFiled: December 3, 2010Publication date: June 2, 2011Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, Research Institute of Petroleum Processing, SinopecInventors: Yichao Mao, Hong Nie, Jianwei Dong, Zhenlin Xiong, Zhihai Hu, Yahua Shi, Dadong Li
-
Publication number: 20100314287Abstract: Disclosed is a combined process for hydrotreating and catalytic cracking of residue, wherein the residue, catalytic cracking heavy cycle oil with acidic solid impurity being removed, optional distillate oil and adistillate of catalytic cracking slurry oil from which the acidic solid impurity is removed are fed into residue hydrotreating unit, the hydrogenated residue obtained and optional vacuum gas oil are fed into catalytic cracking unit to obtain various products; the catalytic cracking heavy cycle oil from which the acidic solid impurity is removed is circulated to the residue hydrotreating unit; the catalytic cracking slurry oil is separated by distilling, the distillate of the catalytic cracking slurry oil after removing off the acidic solid impurity is circulated to the residue hydrotreating unit.Type: ApplicationFiled: December 27, 2007Publication date: December 16, 2010Inventors: Chuanfeng Niu, Lishun Dai, Yongcan Gao, Dadong Li, Yahua Shi, Hong Nie, Qinghe Yang
-
Patent number: 7745372Abstract: A catalyst for the selective hydrogenation of olefins especially dienes, its preparation and use, said catalyst comprising an alumina support and cobalt and/or nickel selected from Group VIII, molybdenum and/or tungsten from Group VIB and alkali metal components supported on said support, characterized in that the catalyst contains 0.5-8% by weight of cobalt and/or nickel selected from Group VIII, 2-15% by weight of molybdenum and/or tungsten from Group VIB, over 2-8% by weight of alkali metals, and a balanced amount of alumina support calculated for oxides and based on the catalyst. Compared to the prior catalysts, the activity and selectivity for olefins especially dienes of the catalyst are higher when used in the hydrogenation of a gasoline distillate.Type: GrantFiled: December 21, 2004Date of Patent: June 29, 2010Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SINOPECInventors: Mingfeng Li, Yang Chu, Yunjian Hu, Guofu Xia, Hong Nie, Yahua Shi, Dadong Li
-
Publication number: 20090139898Abstract: The present invention provides a hydrogenation catalyst, containing a carrier, metal components of nickel, molybdenum and tungsten supported thereon, and an adjuvant component selected from the group consisting of fluorine and phosphor and combination thereof. In another embodiment, the present invention provides a hydrogenation catalyst, containing a carrier and metal components of nickel, molybdenum and tungsten supported thereon, wherein said carrier contains a molecular sieve. The present invention provides further use of said catalyst in the process for hydrogenating hydrocarbon oil. In comparison with a hydrogenation catalyst according to the prior art, the catalyst according to the present invention has a much higher activity.Type: ApplicationFiled: April 20, 2006Publication date: June 4, 2009Inventors: Xiangyun Long, Xuefen Liu, Hong Nie, Kui Wang, Jing Xin, Qinghe Liu, Xiaodong Gao, Zhihai Hu, Yahua Shi, Dadong Li
-
Publication number: 20080190811Abstract: The present invention relates to a hydrocracking catalyst comprising an acidic silica-alumina, an optional alumina, an effective quantity of at least one VIII Group metal component(s), an effective quantity of at least one VIB Group metal component(s) and an organic additive, wherein the organic additive is one or more selected from the group consisting of an oxygen-containing or nitrogen-containing organic compound, and the molar ratio of the organic additive to the VIII Group metal component(s) is 0.01-10. The present invention relates further to a process for producing the hydrocracking catalyst and use of the catalyst in a process for hydrocracking hydrocarbon oils. The hydrocracking catalyst provided according to the present invention shows a higher activity for aromatic hydrosaturating and ring-opening reaction, as compared with the prior art hydrocracking catalyst.Type: ApplicationFiled: April 26, 2006Publication date: August 14, 2008Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEInventors: Yichao Mao, Hong Nie, Jianwei Dong, Zhenlin Xiong, Zhihai Hu, Yahua Shi, Dadong Li
-
Patent number: 7341657Abstract: Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification catalyst. The effluent of the process is separated to obtain a hydrotreated gasoline fraction free of mercaptan and having a low content of sulfur, e.g. less than 200 ppm, a low content of olefins, e.g. less than 20% by volume, and little octane loss. The hydrotreated gasoline fraction can be used as blending component of a final gasoline product.Type: GrantFiled: December 22, 2003Date of Patent: March 11, 2008Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Dadong Li, Yulin Shi, Yunjian Hu, Yuanbing Xi, Mingfeng Li, Yahua Shi
-
Publication number: 20050137434Abstract: A catalyst for the selective hydrogenation of olefins especially dienes, its preparation and use, said catalyst comprising an alumina support and cobalt and/or nickel selected from Group VIII, molybdenum and/or tungsten from Group VIB and alkali metal components supported on said support, characterized in that the catalyst contains 0.5-8% by weight of cobalt and/or nickel selected from Group VIII, 2-15% by weight of molybdenum and/or tungsten from Group VIB, over 2-8% by weight of alkali metals, and a balanced amount of alumina support calculated for oxides and based on the catalyst. Compared to the prior catalysts, the activity and selectivity for olefins especially dienes of the catalyst are higher when used in the hydrogenation of a gasoline distillate.Type: ApplicationFiled: December 21, 2004Publication date: June 23, 2005Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Mingfeng Li, Yang Chu, Yunjian Hu, Guofu Xia, Hong Nie, Yahua Shi, Dadong Li
-
Publication number: 20050133410Abstract: Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification catalyst. The effluent of the process is separated to obtain a hydrotreated gasoline fraction free of mercaptan and having a low content of sulfur, e.g. less than 200 ppm, a low content of olefins, e.g. less than 20% by volume, and little octane loss. The hydrotreated gasoline fraction can be used as blending component of a final gasoline product.Type: ApplicationFiled: December 22, 2003Publication date: June 23, 2005Applicants: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing SinopecInventors: Dadong Li, Yulin Shi, Yunjian Hu, Yuanbing Xi, Mingfeng Li, Yahua Shi
-
Patent number: 6518219Abstract: A catalyst for hydrofining fraction oils, comprises an alumina carrier and at least one metal and/or thereof oxide of Group VIB and at least one metal and/or thereof oxide of Group VIII supported on said alumina carrier. The pore volume of said alumina carrier is not less than 0.35 ml/g, in which the pore volume of the pores having a diameter of 40-100 angstrom accounts for more than 80% of the total pore volume, the alumina carrier is prepared by a special process. The catalyst possesses relatively high hydrogenation activity.Type: GrantFiled: October 13, 2000Date of Patent: February 11, 2003Assignees: China Petrochemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Qinghe Yang, Bin Liu, Hong Nie, Xuefen Liu, Dadong Li, Yahua Shi, Fucheng Zhuang
-
Patent number: 6156190Abstract: A conversion process of hydrocarbon oils comprises at least a hydrodemercaptanization process, wherein said hydrodemercaptanization process comprises contacting a feedstock with a hydrofining catalyst containing a tungsten oxide and/or a molybdenum oxide, a nickel oxide and a cobalt oxide supported on an alumina under the conditions of hydrodemercaptanization, in which the content of said tungsten oxide and/or molybdenum oxide is from 4 wt % to less than 10 wt %, the nickel oxide content is 1-5 wt %, the cobalt oxide content is 0.01-1 wt % based on the catalyst, and the ratio of total atom number of nickel and cobalt to total atom number of nickel, cobalt, tungsten and/or molybdenum is 0.3-0.9. Said process can be carried out at a lower temperature and a lower H/oil volume ratio.Type: GrantFiled: March 19, 1999Date of Patent: December 5, 2000Assignees: China Petrochemical Corporation, Research Institute of Petroleum ProcessingInventors: Guofu Xia, Mei Zhu, Enze Min, Yahua Shi, Zhiping Tao, Guici Pang, Mingfeng Li, Guopeng Ran, Haitao Huang, Runqiang Zhang, Jian Li, Hong Nie
-
Patent number: 6037306Abstract: A hydrotreating catalyst containing molybdenum and/or tungsten for light oil distillates, said catalyst contains tungsten oxide and/or moybdenum oxide, nickel oxide and cobalt oxide supported on an alumina carrier, the content of said tungsten oxide and/or molybdenum oxide is from 4 wt % to less than 10 wt %, the content of nickel oxide 1.about.5 wt %, the content of cobalt oxide 0.01.about.1 wt %, the atom ratio of nickel-cobalt to nickel, cobalt-tungsten and/or molybdenum is 0.3.about.0.9. Compared with the prior art, the catalyst has lower metal content, but higher activity at low-temperature. The catalyst is especially suitable for use in the hydrodemercaptanization process of light oil distillates.Type: GrantFiled: March 19, 1999Date of Patent: March 14, 2000Assignees: China Petrochemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Guofu Xia, Mei Zhu, Enze Min, Yahua Shi, Mingfeng Li, Hong Nie, Zhiping Tao, Haitao Huang, Runqiang Zhang, Jian Li, Zhishan Wang, Guopeng Ran
-
Patent number: 5972832Abstract: The present invention relates to a hydrocracking catalyst containing nickel, tungsten, fluorine, zeolite as well as alumina, said catalyst is composed of, based on the total weight of the catalyst, 0.5-5.0 wt % fluorine, 2.5-6.0 wt % nickel oxide, 10-38 wt % tungsten oxide, and a catalyst carrier. Said carrier is composed of 20-90 wt % alumina and 10-90 wt % zeolite wherein the zeolite is mesopore or macropore zeolite of an acidity strength value 1.0-2.0 mmol/g determined by NH.sub.3 -TPD, the alumina is the alumina of an acidity strength value 0.5-0.8 mmol/g determined by NH.sub.3 -TPD. Said catalyst possesses good desulfurization activity, denitrogenation activity, and higher selectivity with respect to middle distillates than that of the prior art.Type: GrantFiled: June 30, 1997Date of Patent: October 26, 1999Assignees: Research Institute of Petroleum Proc., China Petrochemical CorporationInventors: Jianwen Shi, Hong Nie, Yahua Shi, Yulin Shi, Yanping Zhang, Dadong Li
-
Patent number: 5954944Abstract: A process for producing middle distillates by hydrocracking a heavy distillate oil under middle pressure uses a hydrofining catalyst and a hydrocracking catalyst in series and once-through operation. The once-through volume conversion to 350.degree. C.--products is up to 80 vol. %. The yield and selectivity of middle distillates are greater than 40 wt % and less than 50 wt %, respectively. The process is particularly suited to treat heavy distillate oil having the nitrogen content of up to 1500 ppmw, the sulfur content of up to 3.5 wt % and dry point in the boiling range of higher than 500.degree. C. to produce the feed for reforming process, jet fuel, the low sulfur content diesel, the feed for catalytic cracker and the feed for producing ethylene.Type: GrantFiled: June 30, 1997Date of Patent: September 21, 1999Assignees: China Petrochemical Corp., Research Institute of Petroleum Processing SinopecInventors: Yanping Zhang, Yulin Shi, Zhenlin Xiong, Jianwen Shi, Hong Nie, Yahua Shi, Yigin Zhu, Zhihai Hu
-
Patent number: 5914290Abstract: The present invention discloses a hydrofining catalyst. The catalyst has the following composition based on the total weight of the entire catalyst composition: 1-5%(wt.) nickel oxide, 12-35% (wt.) tungsten oxide, 1-9% (wt.) fluorine, and the balancing amount of composite alumina. Said composite alumina is composed of one or several kinds of micropore alumina and one or several kinds of macropore alumina, wherein the weight ratio of micropore alumina to macropore alumina is 75:25 to 50:50. The term "micropore alumina" in the context means the alumina in which the volume of the proe of diameter less than 80 angstrom occupies more than 95% of its total pore volume, while the term "macropore alumina" in the contest means the alumina in which the volume of the pore of diameter 60-600 angstrom occupies more than 70% of its total pore volume. The pore distribution mentioned above is determined by BET method of nitrogen adsorption at low temperature.Type: GrantFiled: June 30, 1997Date of Patent: June 22, 1999Assignees: China Petrochemical Corporation, Research Institute of PetroleumInventors: Yahua Shi, Dadong Li, Xuefen Liu, Hong Nie, Xiaodong Gao, Yibing Ying