Patents by Inventor Yi-Gang Xiong
Yi-Gang Xiong 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: 20090193710Abstract: A fuel or fuel blendstock comprising ethanol, ethyl ethers, olefins, and alkanes. In some embodiments, the fuel or fuel blendstock of claim 1, wherein the fuel or fuel blendstock may have an octane number greater than 92 (RON+MON)/2). In other embodiments, the fuel or fuel blendstock may have a Reid vapor pressure less than 7.2 psi. Also disclosed is a process for the production of a fuel, the process including: contacting ethanol and at least one gasoline fraction including alkanes and olefins in the presence of a catalyst to form a fuel mixture including ethyl ethers, alkanes, unreacted olefins, and unreacted ethanol; and recovering the fuel mixture for use as a gasoline or gasoline blendstock without separation of the ethanol from the fuel mixture.Type: ApplicationFiled: February 4, 2008Publication date: August 6, 2009Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Yi-Gang Xiong, Kerry L. Rock, Arvids Judzis, Mitchell E. Loescher
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Patent number: 7431827Abstract: A process for the production of low sulfur, low olefin gasoline wherein a cracked naphtha, such as a full boiling range cracked naphtha, is first separated by fractional distillation into at least two fractions while simultaneously selectively hydrogenating the polyunsaturated compounds contained therein. The mono olefins in the light fraction are then subjected to etherification with alcohol to produce ethers or hydration with water to produce alcohols. The heavy fraction is subjected to sulfur removal by hydrodesulfurization or chemisorption. The two fractions are then combined to produce a low sulfur, low olefin gasoline.Type: GrantFiled: October 27, 2004Date of Patent: October 7, 2008Assignee: Catalytic Distillation TechnologiesInventors: Kerry L. Rock, Yi-Gang Xiong, Arvids Judzis, Jr.
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Publication number: 20060086645Abstract: A process for the production of low sulfur, low olefin gasoline wherein a cracked naphtha, such as a full boiling range cracked naphtha, is first separated by fractional distillation into at least two fractions while simultaneously selectively hydrogenating the polyunsaturated compounds contained therein. The mono olefins in the light fraction are then subjected to etherification with alcohol to produce ethers or hydration with water to produce alcohols. The heavy fraction is subjected to sulfur removal by hydrodesulfurization or chemisorption. The two fractions are then combined to produce a low sulfur, low olefin gasoline.Type: ApplicationFiled: October 27, 2004Publication date: April 27, 2006Inventors: Kerry Rock, Yi-Gang Xiong, Arvids Judzis
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Patent number: 6979756Abstract: Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.Type: GrantFiled: October 28, 2002Date of Patent: December 27, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Shun C. Fung, Marcel J. G. Janssen, Stephen N. Vaughn, Machteld M. Mertens, Albert Edward Schweizer, Cornelius W. M. Van Oorschot, Luc R. M. Martens, Richard B. Hall, Wilfried J. Mortier, Ronald G. Searle, Yi-Gang Xiong
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Publication number: 20040048734Abstract: A molecular sieve and a molecular sieve catalyst containing a surface heat impregnated with a metal. The molecular sieve is heated in the presence of a metal containing solution at a temperature between 30° C. and 400° C. then separated from the metal containing solution. The molecular sieve and molecular sieve catalyst is used to make olefin from an oxygenate feedstock.Type: ApplicationFiled: September 15, 2003Publication date: March 11, 2004Inventors: Zhongmin Liu, Lixin Yang, Lei Xu, Chenglin Sun, Yi-Gang Xiong
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Publication number: 20030055304Abstract: Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is, also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.Type: ApplicationFiled: October 28, 2002Publication date: March 20, 2003Inventors: Shun C. Fung, Marcel J.G. Janssen, Stephen N. Vaughn, Machteld M. Mertens, Albert Edward Schweizer, Cornelius W.M. Van Oorschot, Luc R.M. Martens, Richard B. Hall, Wilfried J. Mortier, Ronald G. Searle, Yi-Gang Xiong
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Publication number: 20030018230Abstract: A molecular sieve and a molecular sieve catalyst containing a surface heat impregnated with a metal. The molecular sieve is heated in the presence of a metal containing solution at a temperature between 30° C. and 400° C. then separated from the metal containing solution. The molecular sieve and molecular sieve catalyst is used to make olefin from an oxygenate feedstock.Type: ApplicationFiled: July 30, 2002Publication date: January 23, 2003Inventors: Zhongmin Liu, Lixin Yang, Lei Xu, Chenglin Sun, Yi-Gang Xiong
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Patent number: 6503863Abstract: Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.Type: GrantFiled: August 15, 2001Date of Patent: January 7, 2003Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Shun C. Fung, Marcel J. G. Janssen, Stephen N. Vaughn, Machteld M. Mertens, Albert Edward Schweizer, Luc R. M. Martens, Richard B. Hall, Wilfried J. Mortier, Ronald G. Searle, Yi-Gang Xiong
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Patent number: 6448197Abstract: A molecular sieve and a molecular sieve catalyst containing a surface heat impregnated with a metal. The molecular sieve is heated in the presence of a metal containing solution at a temperature between 30° C. and 400° C. then separated from the metal containing solution. The molecular sieve and molecular sieve catalyst is used to make olefin from an oxygenate feedstock.Type: GrantFiled: July 13, 2000Date of Patent: September 10, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Zhongmin Liu, Lixin Yang, Lei Xu, Chenglin Sun, Yi-Gang Xiong
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Patent number: 6395674Abstract: Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.Type: GrantFiled: September 21, 1999Date of Patent: May 28, 2002Assignee: Exxon Mobil Chemical Patents, Inc.Inventors: Shun C. Fung, Marcel J. G. Janssen, Stephen N. Vaughn, Machteld M. Mertens, Albert E. Schweizer, Luc R. M. Martens, Richard B. Hall, Wilfried J. Mortier, Ronald G. Searle, Yi-Gang Xiong
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Publication number: 20020055433Abstract: Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.Type: ApplicationFiled: August 15, 2001Publication date: May 9, 2002Inventors: Shun C. Fung, Marcel J.G. Janssen, Stephen N. Vaughn, Machteld M. Mertens, Albert Edward Schweizer, Cornelius W.M Van Oorschot, Luc R.M. Martens, Richard B. Hall, Wilfried J. Mortier, Ronald G. Searle, Yi-Gang Xiong