Patents by Inventor Michelle J. Cohn
Michelle J. Cohn 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: 7875757Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent and the isomerization zone effluent are each separated to form a light ends stream and a product stream. The light ends streams are combined for processing in a net gas re-contacting zone.Type: GrantFiled: May 29, 2008Date of Patent: January 25, 2011Assignee: UOP LLCInventors: Douglas A. Nafis, Gregory F. Maher, Lynn H. Rice, William D. Schlueter, Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 7435329Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent and the isomerization zone effluent are each separated to form a light ends stream and a product stream. The light ends streams are combined for processing in a net gas re-contacting zone.Type: GrantFiled: September 6, 2005Date of Patent: October 14, 2008Assignee: UOP LLCInventors: Douglas A. Nafis, Gregory F. Maher, Lynn H. Rice, William D. Schlueter, Ralph D. Gillespie, Michelle J. Cohn
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Publication number: 20080245704Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent and the isomerization zone effluent are each separated to form a light ends stream and a product stream. The light ends streams are combined for processing in a net gas re-contacting zone.Type: ApplicationFiled: May 29, 2008Publication date: October 9, 2008Inventors: Douglas A. Nafis, Gregory F. Maher, Lynn H. Rice, William D. Schlueter, Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 7432406Abstract: A dehydrogenation process using an improved noble metal containing catalyst is disclosed. The catalyst comprises a non-acidic molecular sieve having a three-dimensional microporous framework structure of tin, aluminum and silicon tetrahedral oxide units. The non-acidic molecular sieve has a noble metal such as platinum dispersed thereon. The molecular sieve is rendered non-acidic by treating it with an alkali or alkaline earth metal. At least 10% of the tin is in a reduced oxidation state.Type: GrantFiled: June 10, 2004Date of Patent: October 7, 2008Assignee: UOP LLCInventors: John Q. Chen, Jaime G. Moscoso, Jeffery C. Bricker, Michelle J. Cohn
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Patent number: 7326819Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: January 21, 2005Date of Patent: February 5, 2008Assignee: UOP LLCInventors: Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 7022889Abstract: A process for the isomerization of a feedstream comprising C5–C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5–C6 hydrocarbons into an isomerization zone and contacting said hydrogen and feedstream with an isomerization catalyst at isomerization conditions to increase the branching of the feedstream hydrocarbons and produce an isomerization effluent stream comprising at least normal pentane, normal hexane, methylbutane, dimethylbutane, and methylpentane has been discovered. The catalyst used is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB (IUPAC 4) of the Periodic Table, a first component selected from the group consisting of at least one lanthanide-series element, mixtures thereof, and yttrium, and a second component selected from the group of platinum-group metals and mixtures thereof.Type: GrantFiled: March 19, 2004Date of Patent: April 4, 2006Assignee: UOP LLCInventors: Ralph D. Gillespie, Michelle J. Cohn, Lynn H. Rice
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Patent number: 7015175Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum and a refractory-oxide binder having at least one platinum-group metal component dispersed thereon.Type: GrantFiled: June 21, 2004Date of Patent: March 21, 2006Assignee: UOP LLCInventors: James G. Vassilakis, Richard R. Rosin, Steven A. Bradley, Ralph D. Gillespie, Michelle J. Cohn, Feng Xu
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Patent number: 6979396Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent is combined with the isomerization zone effluent to form a combined effluent stream and separated into a product stream enriched in C5 and heavier hydrocarbons and an overhead stream enriched in C4 and lighter boiling compounds.Type: GrantFiled: June 21, 2004Date of Patent: December 27, 2005Assignee: UOP LLCInventors: Ralph D. Gillespie, Michelle J. Cohn, Richard R. Rosin, Lynn H. Rice, Margaret A. Stine
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Patent number: 6927188Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: November 20, 2003Date of Patent: August 9, 2005Assignee: UOP LLCInventors: Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 6881873Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: November 20, 2003Date of Patent: April 19, 2005Assignee: UOP LLCInventors: Ralph D. Gillespie, Michelle J. Cohn
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Publication number: 20040259726Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: ApplicationFiled: November 20, 2003Publication date: December 23, 2004Inventors: Ralph D. Gillespie, Michelle J. Cohn
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Publication number: 20040249230Abstract: A process for the isomerization of a feedstream comprising C5-C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5-C6 hydrocarbons into an isomerization zone and contacting said hydrogen and feedstream with an isomerization catalyst at isomerization conditions to increase the branching of the feedstream hydrocarbons and produce an isomerization effluent stream comprising at least normal pentane, normal hexane, methylbutane, dimethylbutane, and methylpentane has been discovered. The catalyst used is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB (IUPAC 4) of the Periodic Table, a first component selected from the group consisting of at least one lanthanide-series element, mixtures thereof, and yttrium, and a second component selected from the group of platinum-group metals and mixtures thereof.Type: ApplicationFiled: March 19, 2004Publication date: December 9, 2004Inventors: Ralph D. Gillespie, Michelle J. Cohn, Lynn H. Rice
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Publication number: 20040077915Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (WPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: ApplicationFiled: November 20, 2003Publication date: April 22, 2004Inventors: Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 6706659Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: August 29, 2001Date of Patent: March 16, 2004Assignee: UOP LLCInventors: Ralph D. Gillespie, Michelle J. Cohn
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Publication number: 20030050523Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.Type: ApplicationFiled: August 29, 2001Publication date: March 13, 2003Inventors: Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 5837641Abstract: A method of continuously promoting the activity of solid strong acid catalysts used in acid catalyzed reactions by adding or generating water in the reaction mixture has been developed. The solid strong acid catalyst may be a sulfated metal oxide, a tungstated metal oxide, or a molybdated metal oxide. The metal oxides are oxides, hydroxides, oxyhydroxides, or oxide-hydrates of Group IV-A, Group III-A, Group III-B, and Group V-A metals. The catalyst may also contain a Group VIII metal, or when the metal oxide is a hydroxide, oxide, oxyhydroxide, or oxide-hydrate of the Group IV-A, Group III-A, or Group III-B metals, the catalyst may also contain an oxide, hydroxide, oxyhydroxide or oxide-hydrate of a Group V-A, Group V-B, Group VI-B, or Group VII-B metal as a promoter.Type: GrantFiled: January 16, 1996Date of Patent: November 17, 1998Assignee: UOP LLCInventors: Christopher D. Gosling, Paul G. Blommel, Michelle J. Cohn, Ralph D. Gillespie, Jennifer S. Holmgren
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Patent number: 5185306Abstract: Metal migration from molecular sieve particles to binder particles in agglomerates of molecular sieves bearing group VIII zerovalent metal occurs readily at temperatures above 350.degree. C. Such migration can seriously impair the performance of the catalyst whose effectiveness depends on the presence of the metal largely, if not exclusively, on the molecular sieve particle. Exposure of the catalyst, or a catalyst precursor, to temperatures facilitating group VIII metal migration can occur at various periods during the catalyst's history. Group VIII metal migration can be inhibited and often effectively prevented when chlorine or a chlorine-containing compound is present in the non-reducing atmosphere at temperatures which otherwise would bring about metal migration.Type: GrantFiled: July 24, 1991Date of Patent: February 9, 1993Assignee: UOPInventors: Michelle J. Cohn, R. Joe Lawson, Mark D. Moser
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Patent number: 4810683Abstract: A method is described for the regeneration of a hydrocarbon conversion catalyst that has become deactivated by carbonaceous material deposition where the catalyst comprises a nonacid zeolite and a Group VIII metal component. The method comprises the steps of (1) removing a substantial portion of the carbonaceous material from the catalyst by combustion with an oxygen-containing gas in the presence of a halogen, and (2) reducing the catalyst in the presence of hydrogen.Type: GrantFiled: January 25, 1988Date of Patent: March 7, 1989Assignee: UOP Inc.Inventors: Michelle J. Cohn, Delmar W. Robinson, R. Joe Lawson