Patents by Inventor Baili Hu
Baili Hu 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: 7888278Abstract: The present invention relates to stabilized supports stable at temperatures above 800° C., and method of preparing such supports, which includes adding a rare earth metal to an aluminum-containing precursor prior to calcining. The present invention can be more specifically seen as a support, process and catalyst wherein the stabilized alumina catalyst support comprises a rare earth aluminate with a molar ratio of aluminum to rare earth metal greater than 5:1 and, optionally, an aluminum oxide. More particularly, the invention relates to the use of catalysts comprising rhodium, ruthenium, iridium, or combinations thereof, loaded onto said stabilized supports for the synthesis gas production via partial oxidation of light hydrocarbons, and further relates to gas-to-liquids conversion processes.Type: GrantFiled: November 12, 2003Date of Patent: February 15, 2011Assignee: ConocoPhillips CompanyInventors: Charles R. Rapier, Shuibo Xie, Baili Hu, Beatrice C. Ortego, David E. Simon, David M. Minahan
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Patent number: 7524786Abstract: The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more particularly, the present invention relates to the regeneration of syngas catalysts using a re-dispersion technique. One embodiment of the re-dispersion technique involves the treatment of a deactivated syngas catalyst with a re-dispersing gas, preferably a carbon monoxide-containing gas such as syngas. If necessary, the catalyst is then exposed to hydrogen for reduction and further re-dispersion.Type: GrantFiled: April 25, 2005Date of Patent: April 28, 2009Assignee: ConocoPhillips CompanyInventors: Daxiang Wang, Baili Hu, Yaming Jin, Harold A. Wright
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Publication number: 20050209349Abstract: The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more particularly, the present invention relates to the regeneration of syngas catalysts using a re-dispersion technique. One embodiment of the re-dispersion technique involves the treatment of a deactivated syngas catalyst with a re-dispersing gas, preferably a carbon monoxide-containing gas such as syngas. If necessary, the catalyst is then exposed to hydrogen for reduction and further re-dispersion.Type: ApplicationFiled: April 25, 2005Publication date: September 22, 2005Applicant: Conoco Inc.Inventors: Daxiang Wang, Baili Hu, Yaming Jin, Harold Wright
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Patent number: 6946114Abstract: Lanthanide-promoted rhodium-containing supported catalysts that are active for catalyzing the net partial oxidation of methane to CO and H2 are disclosed, along with their manner of making and high efficiency processes for producing synthesis gas employing the new catalysts. A preferred catalyst comprises highly dispersed, high surface area rhodium on a granular zirconia support with an intermediate coating of a lanthanide metal and/or oxide thereof and is thermally conditioned during catalyst preparation. In a preferred syngas production process a stream of methane-containing gas and O2 is passed over a thermally conditioned, high surface area Rh/Sm/zirconia granular catalyst in a short contact time reactor to produce a mixture of carbon monoxide and hydrogen.Type: GrantFiled: September 5, 2001Date of Patent: September 20, 2005Assignee: ConocoPhillips CompanyInventors: Joe D. Allison, Larry D. Swinney, Tianyan Niu, Kevin L. Ricketson, Daxiang Wang, Sriram Ramani, Gloria I. Straguzzi, David M. Minahan, Harold A. Wright, Baili Hu
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Patent number: 6923922Abstract: A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2O3, leaching the host material in a solution with a leaching constituent which is reactive with Rh2O3 to form a first intermediate species, reacting the first intermediate species in a solution with an acidifying constituent or complexing agent to form a second intermediate species, and purifying the second intermediate species. Preferably, the roasting temperature is approximately from 600° C. to 800° C. for 0.5 to 10 hours. In some embodiments, the host material is ground to particles in the range of 0.1 to 10 mm.Type: GrantFiled: April 21, 2004Date of Patent: August 2, 2005Assignee: ConocoPhillips CompanyInventors: Zhen Chen, Kevin L. Ricketson, Baili Hu, Harold A. Wright, Joe D. Allison
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Publication number: 20050112047Abstract: Lanthanide-promoted rhodium-containing supported catalysts that are active for catalyzing the net partial oxidation of methane to CO and H2 are disclosed, along with their manner of making and high efficiency processes for producing synthesis gas employing the new catalysts. A preferred catalyst comprises highly dispersed, high surface area rhodium on a granular zirconia support with an intermediate coating of a lanthanide metal and/or oxide thereof and is thermally conditioned during catalyst preparation. In a preferred syngas production process a stream of methane-containing gas and O2 is passed over a thermally conditioned, high surface area Rh/Sm/zirconia granular catalyst in a short contact time reactor to produce a mixture of carbon monoxide and hydrogen.Type: ApplicationFiled: January 3, 2005Publication date: May 26, 2005Applicant: ConocoPhillips CompanyInventors: Joe Allison, Larry Swinney, Tianyan Niu, Kevin Ricketson, Daxiang Wang, Sriram Ramani, Gloria Straguzzi, David Minahan, Harold Wright, Baili Hu
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Patent number: 6896868Abstract: The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more particularly, the present invention relates to the regeneration of syngas catalysts using a re-dispersion technique. One embodiment of the re-dispersion technique involves the treatment of a deactivated syngas catalyst with a re-dispersing gas, preferably a carbon monoxide-containing gas such as syngas. If necessary, the catalyst is then exposed to hydrogen for reduction and further re-dispersion.Type: GrantFiled: August 15, 2002Date of Patent: May 24, 2005Assignee: ConocoPhillips CompanyInventors: Daxiang Wang, Baili Hu, Yaming Jin, Harold A. Wright
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Publication number: 20040202607Abstract: A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2O3, leaching the host material in a solution with a leaching constituent which is reactive with Rh2O3 to form a first intermediate species, reacting the first intermediate species in a solution with an acidifying constituent or complexing agent to form a second intermediate species, and purifying the second intermediate species. Preferably, the roasting temperature is approximately from 600° C. to 800° C. for 0.5 to 10 hours. In some embodiments, the host material is ground to particles in the range of 0.1 to 10 mm.Type: ApplicationFiled: April 21, 2004Publication date: October 14, 2004Applicant: ConocoPhillips CompanyInventors: Zhen Chen, Kevin L. Ricketson, Baili Hu, Harold A. Wright, Joe D. Allison
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Patent number: 6764662Abstract: A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2O3, leaching the host material in a solution with a leaching constituent which is reactive with Rh2O3 to form a first intermediate species, reacting the first intermediate species in a solution with an acidifying constituent or complexing agent to form a second intermediate species, and purifying the second intermediate species. Preferably, the roasting temperature is approximately from 600° C. to 800° C. for 0.5 to 10 hours. In some embodiments, the host material is ground to particles in the range of 0.1 to 10 mm.Type: GrantFiled: June 20, 2002Date of Patent: July 20, 2004Assignee: ConocoPhillips CompanyInventors: Zhen Chen, Kevin L. Ricketson, Baili Hu, Harold A. Wright, Joe D. Allison
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Publication number: 20040138060Abstract: The present invention relates to stabilized supports stable at temperatures above 800° C., and method of preparing such supports, which includes adding a rare earth metal to an aluminum-containing precursor prior to calcining. The present invention can be more specifically seen as a support, process and catalyst wherein the stabilized alumina catalyst support comprises a rare earth aluminate with a molar ratio of aluminum to rare earth metal greater than 5:1 and, optionally, an aluminum oxide. More particularly, the invention relates to the use of catalysts comprising rhodium, ruthenium, iridium, or combinations thereof, loaded onto said stabilized supports for the synthesis gas production via partial oxidation of light hydrocarbons, and further relates to gas-to-liquids conversion processes.Type: ApplicationFiled: November 12, 2003Publication date: July 15, 2004Applicant: ConocoPhillips CompanyInventors: Charles R. Rapier, Shuibo Xie, Baili Hu, Beatrice C. Ortego, David E. Simon, David M. Minahan
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Publication number: 20040052725Abstract: The present invention generally relates to catalysts comprising at least one oxidized active metal; at least one lanthanide; and a refractory support. The active metal is selected from the group consisting of rhodium, ruthenium, rhenium, platinum, palladium, iridium, and osmium. In particular, the present invention relates to catalysts effective for initiating and sustaining the partial oxidation of light hydrocarbons, preferably methane, to a product mixture comprising carbon monoxide and hydrogen, e.g. synthesis gas. The present invention still further discloses a method of making a supported synthesis gas catalyst comprising an oxidized metal and at least one lanthanide.Type: ApplicationFiled: June 30, 2003Publication date: March 18, 2004Applicant: ConocoPhillips CompanyInventors: Tianyan Niu, Daxiang Wang, David Minahan, Baili Hu, Harold A. Wright
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Publication number: 20040033885Abstract: The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more particularly, the present invention relates to the regeneration of syngas catalysts using a re-dispersion technique. One embodiment of the re-dispersion technique involves the treatment of a deactivated syngas catalyst with a re-dispersing gas, preferably a carbon monoxide-containing gas such as syngas. If necessary, the catalyst is then exposed to hydrogen for reduction and further re-dispersion.Type: ApplicationFiled: August 15, 2002Publication date: February 19, 2004Applicant: Conoco Inc.Inventors: Daxiang Wang, Baili Hu, Yaming Jin, Harold A. Wright
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Publication number: 20030236440Abstract: A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2O3, leaching the host material in a solution with a leaching constituent which is reactive with Rh2O3 to form a first intermediate species, reacting the first intermediate species in a solution with an acidifying constituent or complexing agent to form a second intermediate species, and purifying the second intermediate species. Preferably, the roasting temperature is approximately from 600° C. to 800° C. for 0.5 to 10 hours. In some embodiments, the host material is ground to particles in the range of 0.1 to 10 mm.Type: ApplicationFiled: June 20, 2002Publication date: December 25, 2003Applicant: Conoco Inc.Inventors: Zhen Chen, Kevin L. Ricketson, Baili Hu, Harold A. Wright, Joe D. Allison
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Publication number: 20020115730Abstract: Lanthanide-promoted rhodium-containing supported catalysts that are active for catalyzing the net partial oxidation of methane to CO and H2 are disclosed, along with their manner of making and high efficiency processes for producing synthesis gas employing the new catalysts. A preferred catalyst comprises highly dispersed, high surface area rhodium on a granular zirconia support with an intermediate coating of a lanthanide metal and/or oxide thereof and is thermally conditioned during catalyst preparation. In a preferred syngas production process a stream of methane-containing gas and O2 is passed over a thermally conditioned, high surface area Rh/Sm/zirconia granular catalyst in a short contact time reactor to produce a mixture of carbon monoxide and hydrogen.Type: ApplicationFiled: September 5, 2001Publication date: August 22, 2002Inventors: Joe D. Allison, Larry D. Swinney, Tianyan Niu, Kevin L. Ricketson, Daxiang Wang, Sriram Ramani, Gloria I. Straguzzi, David M. Minahan, Harold A. Wright, Baili Hu