Patents by Inventor Paul Benjerman Himelfarb
Paul Benjerman Himelfarb 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: 11911728Abstract: A reactor for reducing the concentration of NOx in a stream comprising: an inlet for the stream; an outlet for a stream containing a reduced concentration of NOx; one or more catalyst beds comprising a ceramic or metallic foam with a NOx reduction catalyst; one or more flow paths from the inlet to the outlet that passes through at least one catalyst bed wherein the catalyst beds are closed at the top and bottom so that the flow path through the catalyst bed passes through the sides of the catalyst bed in a lateral flow is described.Type: GrantFiled: November 22, 2021Date of Patent: February 27, 2024Assignee: SHELL USA, INC.Inventors: Wassim Klink, Guido Seng, Wenzhong Zhang, Andreas Klemt, Paul Benjerman Himelfarb
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Publication number: 20220111334Abstract: A reactor for reducing the concentration of NOx in a stream comprising: an inlet for the stream; an outlet for a stream containing a reduced concentration of NOx ; one or more catalyst beds comprising a ceramic or metallic foam with a NOx reduction catalyst; one or more flow paths from the inlet to the outlet that passes through at least one catalyst bed wherein the catalyst beds are closed at the top and bottom so that the flow path through the catalyst bed passes through the sides of the catalyst bed in a lateral flow is described.Type: ApplicationFiled: November 22, 2021Publication date: April 14, 2022Inventors: Wassim KLINK, Guido SENG, Wenzhong ZHANG, Andreas KLEMT, Paul Benjerman HIMELFARB
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Patent number: 11179675Abstract: A reactor for reducing the concentration of NOx in a stream comprising: an inlet for the stream; an outlet for a stream containing a reduced concentration of NOx; one or more catalyst beds comprising a ceramic or metallic foam with a NOx reduction catalyst; one or more flow paths from the inlet to the outlet that passes through at least one catalyst bed wherein the catalyst beds are closed at the top and bottom so that the flow path through the catalyst bed passes through the sides of the catalyst bed in a lateral flow is described.Type: GrantFiled: December 20, 2016Date of Patent: November 23, 2021Assignee: SHELL OIL COMPANYInventors: Wassim Klink, Guido Seng, Wenzhong Zhang, Andreas Klemt, Paul Benjerman Himelfarb
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Patent number: 11020732Abstract: A catalyst bed comprising a ceramic or metallic foam comprising one or more NOx reduction catalysts is described. A method for reducing the concentration of NOx in a dust containing gas stream comprising: a) passing a first gas stream containing NOx into a contacting zone; b) contacting the first gas stream with a ceramic or metallic foam catalyst bed having one or more flow paths through the catalyst bed wherein the ceramic or metallic foam comprises a NOx reduction catalyst to produce a second gas stream with a reduced NOx concentration; and c) passing the second gas stream out of the contacting zone wherein the first gas stream has a dust concentration of at least 5 mg/Nm3 and the pressure drop of the foam catalyst bed increases by 300% or less relative to the initial pressure drop of the foam catalyst bed due to dust accumulation, measured under the same conditions is also described.Type: GrantFiled: December 20, 2016Date of Patent: June 1, 2021Assignee: SHELL OIL COMPANYInventors: Wassim Klink, Guido Seng, Wenzhong Zhang, Andreas Klemt, Paul Benjerman Himelfarb
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Patent number: 10960352Abstract: A catalyst bed comprising a ceramic or metallic foam comprising one or more NOx reduction catalysts is described. Further, a method for reducing the concentration of NOx in a dust containing gas stream comprising: a) passing a first gas stream containing NOx into a contacting zone; b) contacting the first gas stream with a ceramic or metallic foam catalyst bed having one or more flow paths through the catalyst bed wherein the ceramic or metallic foam comprises a NOx reduction catalyst to produce a second gas stream with a reduced NOx concentration; and c) passing the second gas stream out of the contacting zone wherein the first gas stream has a dust concentration of at least 5 mg/Nm3 and the second gas stream comprises at least 50% of the amount of dust in the first gas stream.Type: GrantFiled: December 20, 2016Date of Patent: March 30, 2021Assignee: SHELL OIL COMPANYInventors: Guido Seng, Wassim Klink, Wenzhong Zhang, Andreas Klemt, Paul Benjerman Himelfarb
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Publication number: 20190001266Abstract: A catalyst bed comprising a ceramic or metallic foam comprising one or more NOx reduction catalysts is described. Further, a method for reducing the concentration of NOx in a dust containing gas stream comprising: a) passing a first gas stream containing NOx into a contacting zone; b) contacting the first gas stream with a ceramic or metallic foam catalyst bed having one or more flow paths through the catalyst bed wherein the ceramic or metallic foam comprises a NOx reduction catalyst to produce a second gas stream with a reduced NOx concentration; and c) passing the second gas stream out of the contacting zone wherein the first gas stream has a dust concentration of at least 5 mg/Nm3 and the second gas stream comprises at least 50% of the amount of dust in the first gas stream.Type: ApplicationFiled: December 20, 2016Publication date: January 3, 2019Inventors: Guido SENG, Wassim KLINK, Wenzhong ZHANG, Andreas KLEMT, Paul Benjerman HIMELFARB
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Publication number: 20180369800Abstract: A catalyst bed comprising a ceramic or metallic foam comprising one or more NOx reduction catalysts is described. A method for reducing the concentration of NOx in a dust containing gas stream comprising: a) passing a first gas stream containing NOx into a contacting zone; b) contacting the first gas stream with a ceramic or metallic foam catalyst bed having one or more flow paths through the catalyst bed wherein the ceramic or metallic foam comprises a NOx reduction catalyst to produce a second gas stream with a reduced NOx concentration; and c) passing the second gas stream out of the contacting zone wherein the first gas stream has a dust concentration of at least 5 mg/Nm3 and the pressure drop of the foam catalyst bed increases by 300% or less relative to the initial pressure drop of the foam catalyst bed due to dust accumulation, measured under the same conditions is also described.Type: ApplicationFiled: December 20, 2016Publication date: December 27, 2018Inventors: Wassim KLINK, Guido SENG, Wenzhong ZHANG, Andreas KLEMT, Paul Benjerman HIMELFARB
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Publication number: 20180369753Abstract: A reactor for reducing the concentration of NO x in a stream comprising: an inlet for the stream; an outlet for a stream containing a reduced concentration of NOx; one or more catalyst beds comprising a ceramic or metallic foam with a NOx reduction catalyst; one or more flow paths from the inlet to the outlet that passes through at least one catalyst bed wherein the catalyst beds are closed at the top and bottom so that the flow path through the catalyst bed passes through the sides of the catalyst bed in a lateral flow is described.Type: ApplicationFiled: December 20, 2016Publication date: December 27, 2018Inventors: Wassim KLINK, Guido SENG, Wenzhong ZHANG, Andreas KLEMT, Paul Benjerman HIMELFARB
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Patent number: 9260670Abstract: Disclosed is a process for the selective hydrogenation of diolefins and sulfur compounds that are contained in a pyrolysis gasoline feedstream. The process includes utilizing a single hydrotreating reaction stage by introducing the pyrolysis gasoline feedstock that includes a diolefin concentration and an organic sulfur concentration into a reactor that is loaded with a high activity hydrotreating catalyst and which is operated under selective hydrogenation conditions. A reactor effluent having a reduced diolefin concentration and a reduced organic sulfur concentration is yielded from the reactor and is separated into a portion that is recycled as a reactor feed. The remaining portion of the reactor effluent is passed downstream for further processing or handling.Type: GrantFiled: June 9, 2010Date of Patent: February 16, 2016Assignee: Shell Oil CompanyInventors: Dane Clark Grenoble, Paul Benjerman Himelfarb, Michael Norris Treybig, Brian Scott Vanderwilp
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Patent number: 8163167Abstract: A process for the deep desulfurization of a heavy pyrolysis gasoline to very low levels of organic sulfur, e.g., 30 ppmv or less, with minimal octane number loss through aromatics saturation. The deep desulfurization is accomplished by contacting the heavy pyrolysis gasoline feedstock, partially in liquid and partially in gaseous phase, with a hydrogen treat gas containing a minimum H2S level in the presence of a hydrogenation catalyst in a one or two reactor system operated in trickle flow, using a low temperature, moderate pressure operating condition.Type: GrantFiled: September 11, 2008Date of Patent: April 24, 2012Assignee: Shell Oil CompanyInventor: Paul Benjerman Himelfarb
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Publication number: 20100288679Abstract: A process for the deep desulfurization of a heavy pyrolysis gasoline to very low levels of organic sulfur, e.g., 30 ppmv or less, with minimal octane number loss through aromatics saturation. The deep desulfurization is accomplished by contacting the heavy pyrolysis gasoline feedstock, partially in liquid and partially in gaseous phase, with a hydrogen treat gas containing a minimum H2S level in the presence of a hydrogenation catalyst in a one or two reactor system operated in trickle flow, using a low temperature, moderate pressure operating condition.Type: ApplicationFiled: September 11, 2008Publication date: November 18, 2010Inventor: Paul Benjerman HIMELFARB
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Patent number: 7727929Abstract: A catalyst having dual functionality for the removal of arsenic and the selective hydrogenation of diolefins from monoolefin-containing hydrocarbon streams that have an arsenic concentration and a diolefin concentration, and processes for making and using such catalyst. The catalyst is a heat treated shaped mixture of a refractory oxide and a Group VIII metal that is overlaid with additional Group VIII metal.Type: GrantFiled: June 15, 2004Date of Patent: June 1, 2010Assignee: Shell Oil CompanyInventors: Opinder Kishan Bhan, Paul Benjerman Himelfarb
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Patent number: 7556729Abstract: Described is a method for the selective hydrodesulfurization of an olefin-containing hydrocarbon feedstock that uses a catalyst composition having a high content of a nickel component and an effective but small amount of a molybdenum component supported on a porous refractory oxide. A preferred catalyst composition contains an immaterial amount of a cobalt component.Type: GrantFiled: April 24, 2006Date of Patent: July 7, 2009Assignee: Shell Oil CompanyInventors: Opinder Kishan Bhan, Paul Benjerman Himelfarb
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Patent number: 7230148Abstract: The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based catalyst. The improvement comprises operating the hydrogenation reactor at a reaction temperature sufficiently high from the start of a run, that the thiopheneic compounds are decomposed and substantially absorbed into the bulk of the nickel catalyst, thereby substantially extending the life of the catalyst.Type: GrantFiled: April 4, 2006Date of Patent: June 12, 2007Assignee: Shell Oil CompanyInventors: Paul Benjerman Himelfarb, Charles Eugene Wilson
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Patent number: 7102038Abstract: A process for making a selectively branched alcohol composition contacting a lower olefin feed comprising linear olefins having at least 3 carbon atoms and a concentration of phosphorous-containing compounds with a sorbent comprising a metal or metal oxide on a support, thereby substantially reducing the concentration of phosphorous-containing compounds and producing a purified lower olefin feed. The purified lower olefin feed is skeletally isomerized and then treated to selectively hydrogenate dienes before hydroformylation to produce selectively branched alcohols.Type: GrantFiled: August 9, 2002Date of Patent: September 5, 2006Assignee: Shell Oil CompanyInventors: Brendan Dermont Murray, Paul Benjerman Himelfarb, Zaida Diaz, David Michael Singleton
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Patent number: 7081555Abstract: The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based catalyst. The improvement comprises operating the hydrogenation reactor at a reaction temperature sufficiently high from the start of a run, that the thiopheneic compounds are decomposed and substantially absorbed into the bulk of the nickel catalyst, thereby substantially extending the life of the catalyst.Type: GrantFiled: August 7, 2002Date of Patent: July 25, 2006Assignee: Shell Oil CompanyInventors: Paul Benjerman Himelfarb, Charles Eugene Wilson
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Publication number: 20040030208Abstract: The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based catalyst. The improvement comprises operating the hydrogenation reactor at a reaction temperature sufficiently high from the start of a run, that the thiopheneic compounds are decomposed and substantially absorbed into the bulk of the nickel catalyst, thereby substantially extending the life of the catalyst.Type: ApplicationFiled: August 7, 2002Publication date: February 12, 2004Inventors: Paul Benjerman Himelfarb, Charles Eugene Wilson
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Publication number: 20030149313Abstract: A process for making a selectively branched alcohol composition contacting a lower olefin feed comprising linear olefins having at least 3 carbon atoms and a concentration of phosphorous-containing compounds with a sorbent comprising a metal or metal oxide on a support, thereby substantially reducing the concentration of phosphorous-containing compounds and producing a purified lower olefin feed. The purified lower olefin feed is skeletally isomerized and then treated to selectively hydrogenate dienes before hydroformylation to produce selectively branched alcohols.Type: ApplicationFiled: August 9, 2002Publication date: August 7, 2003Inventors: Brendan Dermot Murray, Paul Benjerman Himelfarb, Zaida Diaz, David Michael Singleton