Patents by Inventor Alfred H. Punke
Alfred H. Punke 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: 10464052Abstract: Described is a process for the preparation of a catalyst. The process comprises (i) providing a substrate which is optionally coated with one or more coating layers; (ii) impregnating one or more particulate support materials with one or more platinum group elements; (iii) adding one or more alkaline earth elements and one or more solvents to the product obtained in step (ii) to obtain a slurry; (iv) adjusting the pH of the slurry obtained in step (iii) to a value ranging from 7 to 10 (v) adjusting the pH of the slurry to a value ranging from 2 to 6; (vi) optionally milling the slurry obtained in step (v); (vii) providing the slurry obtained in step (vi) onto the optionally coated substrate in one or more coating steps. Describes is as a catalyst which is obtainable according to said process and its use in the treatment of exhaust gas.Type: GrantFiled: November 11, 2013Date of Patent: November 5, 2019Assignee: BASF SEInventors: Marcus Hilgendorff, Alfred H. Punke, Torsten Neubauer, Gerd Grubert
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Patent number: 10369548Abstract: A catalyzed soot filter, in particular for the treatment of Diesel engine exhaust, comprises a coating design which ensures soot particulates filtration, assists the oxidation of carbon monoxide (CO), and produces low H2S emissions during normal engine operations and regeneration events.Type: GrantFiled: March 11, 2015Date of Patent: August 6, 2019Assignees: BASF SE, BASF CorporationInventors: Gerd Grubert, Alfred H. Punke, Torsten Neubauer, Marcus Hilgendorff, Chung-Zong Wan, Yuejin Li, Matthew Caudle
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Publication number: 20170021338Abstract: A catalyzed soot filter, in particular for the treatment of Diesel engine exhaust, comprises a coating design which ensures soot particulates filtration, assists the oxidation of carbon monoxide (CO), and produces low H2S emissions during normal engine operations and regeneration events.Type: ApplicationFiled: March 11, 2015Publication date: January 26, 2017Inventors: Gerd Grubert, Alfred H. Punke, Torsten Neubauer, Marcus Hilgendorff, Chung-Zong Wan, Yuejin Li, Matthew Tyler Caudle
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Patent number: 9533295Abstract: A diesel oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO) and the reduction of nitrogen oxides (NOx) is described. More particularly, the present invention is directed to a washcoat composition comprising high silica to alumina zeolite and platinum and palladium such that the zeolite minimizes negative interactions of these platinum group metals with the zeolite.Type: GrantFiled: April 5, 2012Date of Patent: January 3, 2017Assignees: BASF CORPORATION, BASF SEInventors: Torsten W. Müller-Stach, Alfred H. Punke, Gerd Grubert, Marcus Hilgendorff, Helke Doering, Torsten Neubauer, Xiaolai Zheng, Chung-Zong Wan, Wen-Mei Xue, Patrick Burk
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Publication number: 20150174564Abstract: A diesel oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO) and the reduction of nitrogen oxides (NOx) is described. More particularly, the present invention is directed to a washcoat composition comprising high silica to alumina zeolite and platinum and palladium such that the zeolite minimizes negative interactions of these platinum group metals with the zeolite.Type: ApplicationFiled: April 5, 2012Publication date: June 25, 2015Applicants: BASF Corporation, BASF SEInventors: Torsten W. Müller-Stach, Alfred H. Punke, Gerd Grubert, Marcus Hilgendorff, Helke Doering, Torsten Neubauer, Xiaolai Zheng, Chung-Zong Wan, Wen-Mei Xue, Patrick Burk
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Patent number: 9034269Abstract: The present invention relates to a diesel oxidation catalyst comprising a carrier substrate, and a first washcoat layer disposed on the substrate, the first washcoat layer comprising palladium supported on a support material comprising a metal oxide, gold supported on a support material comprising a metal oxide, and a ceria comprising compound, as well as a process for the preparation of such catalyst.Type: GrantFiled: November 27, 2013Date of Patent: May 19, 2015Assignee: BASF SEInventors: Marcus Hilgendorff, Alfred H. Punke, Torsten W. Müller-Stach, Gerd Grubert, Torsten Neubauer, Jeffrey B. Hoke
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Patent number: 8845974Abstract: Catalyzed soot filters comprising a wall flow monolith having porous walls, a first washcoat permeating the porous walls and a second washcoat on the porous walls are disclosed. Methods of manufacturing catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed.Type: GrantFiled: November 24, 2010Date of Patent: September 30, 2014Assignee: BASF CorporationInventors: Yuejin Li, Stanley A. Roth, Alfred H. Punke, Gary A. Gramiccioni
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Patent number: 8758695Abstract: The present invention relates to a treatment system for a gasoline engine exhaust gas stream comprising a particulate filter, said particulate filter comprising: a particulate filter substrate, an inlet layer disposed on the exhaust gas inlet surface of the filter substrate, and an outlet layer disposed on the exhaust gas outlet surface of the filter substrate, wherein the inlet layer comprises Rh and/or Pd, and the outlet layer comprises Rh and/or a zeolite.Type: GrantFiled: June 30, 2010Date of Patent: June 24, 2014Assignee: BASF SEInventors: Torsten Neubauer, Marcus Hilgendorff, Stephan Siemund, Alfred H. Punke, Gerd Grubert
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Publication number: 20140161695Abstract: The present invention relates to a diesel oxidation catalyst comprising a carrier substrate, and a first washcoat layer disposed on the substrate, the first washcoat layer comprising palladium supported on a support material comprising a metal oxide, gold supported on a support material comprising a metal oxide, and a ceria comprising compound, as well as a process for the preparation of such catalyst.Type: ApplicationFiled: November 27, 2013Publication date: June 12, 2014Applicants: BASF Corporation, BASF SEInventors: Marcus Hilgendorff, Alfred H. Punke, Torsten W. Müller-Stach, Gerd Grubert, Torsten Neubauer, Jeffrey B. Hoke
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Publication number: 20140147358Abstract: Described is a process for the preparation of a catalyst. The process comprises (i) providing a substrate which is optionally coated with one or more coating layers; (ii) impregnating one or more particulate support materials with one or more platinum group elements; (iii) adding one or more alkaline earth elements and one or more solvents to the product obtained in step (ii) to obtain a slurry; (iv) adjusting the pH of the slurry obtained in step (iii) to a value ranging from 7 to 10 (v) adjusting the pH of the slurry to a value ranging from 2 to 6; (vi) optionally milling the slurry obtained in step (v); (vii) providing the slurry obtained in step (vi) onto the optionally coated substrate in one or more coating steps. Describes is as a catalyst which is obtainable according to said process and its use in the treatment of exhaust gas.Type: ApplicationFiled: November 11, 2013Publication date: May 29, 2014Applicant: BASF SEInventors: Marcus Hilgendorff, Alfred H. Punke, Torsten Neubauer, Gerd Grubert
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Patent number: 8252258Abstract: Provided is a diesel oxidation catalyst for the treatment of exhaust gas emissions from a diesel engine and a method for treating a diesel exhaust gas stream, the method comprising providing a diesel oxidation catalyst and contacting said diesel exhaust gas stream with said diesel oxidation catalyst for the treatment of exhaust gas emissions. More particularly, the present invention is directed to a catalyst structure comprising three distinct layers; in which layer comprises a precious metal component such as palladium is located between two hydrocarbon storage layers comprising a molecular sieve such as a zeolite.Type: GrantFiled: January 13, 2010Date of Patent: August 28, 2012Assignee: BASF CorporationInventors: Torsten W. Müller-Stach, Torsten Neubauer, Alfred H. Punke, Gerd Grubert, Attilio Siani, Corinna Freitag
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Patent number: 8211392Abstract: Provided is a catalyst composition, in particular a diesel oxidation catalyst, for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO). More particularly, the present invention is directed to a catalyst structure comprising at least two, specifically three distinct layers, at least one of which contains an oxygen storage component (OSC) that is present in a layer separate from the majority of the platinum group metal (PGM) components, such as palladium and platinum.Type: GrantFiled: January 13, 2010Date of Patent: July 3, 2012Assignee: BASF CorporationInventors: Gerd Grubert, Torsten Neubauer, Alfred H. Punke, Torsten W. Müller-Stach, Attilio Siani, Stanley A. Roth, Jeffrey B. Hoke, Shiang Sung, Yuejin Li, Xinyi Wei, Michel Deeba
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Publication number: 20120124974Abstract: Catalyzed soot filters comprising a wall flow monolith having porous walls, a first washcoat permeating the porous walls and a second washcoat on the porous walls are disclosed. Methods of manufacturing catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed.Type: ApplicationFiled: November 24, 2010Publication date: May 24, 2012Applicant: BASF CorporationInventors: Yuejin Li, Stanley A. Roth, Alfred H. Punke, Gary A. Gramiccioni