Patents by Inventor Alfred Helmut Punke
Alfred Helmut 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: 8858904Abstract: Described is a catalyzed soot filter wherein the inlet coating of the filter comprises an oxidation catalyst comprising platinum (Pt) and optionally palladium (Pd), wherein the outlet coating of the filter comprises an oxidation catalyst comprising Pd and optionally Pt, wherein the Pt concentration in the outlet coating is lower than the Pt concentration in the inlet coating and wherein the weight ratio of Pt:Pd in the outlet coating is in the range of from 0:1 to 2:1; and wherein the inlet coating and the outlet coating are present on the wall flow substrate at a coating loading ratio in the range of from 0.5 to 1.5, calculated as ratio of the loading of the inlet coating (in g/inch3 (g/(2.54 cm)3)):loading of the outlet coating (in g/inch3 (g/(2.54 cm)3)). Systems include such catalyzed soot filters, methods of diesel engine exhaust gas treatment and methods of manufacturing catalyzed soot filters are also described.Type: GrantFiled: February 22, 2011Date of Patent: October 14, 2014Assignee: BASF CorporationInventors: Alfred Helmut Punke, Gerd Grubert, Yuejin Li, Ruediger Wolff, Stanley Roth, Torsten Müller-Stach, Attilio Siani, Kenneth Voss, Torsten Neubauer
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Patent number: 8329607Abstract: Provided are diesel exhaust components where palladium is segregated from a molecular sieve, specifically a zeolite, in a catalytic material. In the catalytic material, therefore, there are at least two layers: a palladium-containing layer that is substantially free of a molecular sieve and a hydrocarbon trap layer that comprises at least one molecular sieve and is substantially free of palladium. The palladium is provided on a high surface area, porous refractory metal oxide support. The catalytic material can further comprise a platinum component, where a minor amount of the platinum component is in the hydrocarbon trap layer, and a majority amount of the platinum component is in the palladium-containing layer. Systems and methods of using the same are also provided.Type: GrantFiled: January 14, 2010Date of Patent: December 11, 2012Assignee: BASF CorporationInventors: M. Shahjahan Kazi, Michel Deeba, Torsten Neubauer, Alfred Helmut Punke, Torsten Wolfgang Mueller-Stach, Gerd Grubert, Stanley A. Roth, Jeffrey Barmont Hoke, Shlang Sung, Yuejin Li, Xinyi Wei, Chung-Zong Wan
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Publication number: 20110212008Abstract: Described is a catalyzed soot filter wherein the inlet coating of the filter comprises an oxidation catalyst comprising platinum (Pt) and optionally palladium (Pd), wherein the outlet coating of the filter comprises an oxidation catalyst comprising Pd and optionally Pt, wherein the Pt concentration in the outlet coating is lower than the Pt concentration in the inlet coating and wherein the weight ratio of Pt:Pd in the outlet coating is in the range of from 0:1 to 2:1; and wherein the inlet coating and the outlet coating are present on the wall flow substrate at a coating loading ratio in the range of from 0.5 to 1.5, calculated as ratio of the loading of the inlet coating (in g/inch3 (g/(2.54 cm)3)):loading of the outlet coating (in g/inch3 (g/(2.54 cm)3)). Systems include such catalyzed soot filters, methods of diesel engine exhaust gas treatment and methods of manufacturing catalyzed soot filters are also described.Type: ApplicationFiled: February 22, 2011Publication date: September 1, 2011Inventors: Alfred Helmut Punke, Gerd Grubert, Yuejin Li, Ruediger Wolff, Stanley Roth, Torsten Müeller-Stach, Attilio Siani, Kenneth Voss, Torsten Neubauer
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Publication number: 20100186375Abstract: Provided are diesel exhaust components where palladium is segregated from a molecular sieve, specifically a zeolite, in a catalytic material. In the catalytic material, therefore, there are at least two layers: a palladium-containing layer that is substantially free of a molecular sieve and a hydrocarbon trap layer that comprises at least one molecular sieve and is substantially free of palladium. The palladium is provided on a high surface area, porous refractory metal oxide support. The catalytic material can further comprise a platinum component, where a minor amount of the platinum component is in the hydrocarbon trap layer, and a majority amount of the platinum component is in the palladium-containing layer. Systems and methods of using the same are also provided.Type: ApplicationFiled: January 14, 2010Publication date: July 29, 2010Applicant: BASF Catalysts LLCInventors: M. Shahjahan Kazi, Michel Deeba, Torsten Neubauer, Alfred Helmut Punke, Torsten Wolfgang Mueller-Stach, Gerd Grubert, Stanley A. Roth, Jeffrey Barmont Hoke, Shiang Sung, Yuejin Li, Xinyi Wei, Chung-Zong Wan
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Publication number: 20100180581Abstract: 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: ApplicationFiled: January 13, 2010Publication date: July 22, 2010Applicant: BASF Catalysts LLCInventors: Gerd Grubert, Torsten Neubauer, Alfred Helmut Punke, Torsten Wolfgang Mueller-Stach, Attilio Siani, Stanley A. Roth, Jeffrey Barmont Hoke, Shiang Sung, Yuejin Li, Xinyi Wei, Michel Deeba
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Publication number: 20100180582Abstract: 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: ApplicationFiled: January 13, 2010Publication date: July 22, 2010Applicant: BASF Catalysts LLCInventors: Torsten Wolfgang Mueller-Stach, Torsten Neubauer, Alfred Helmut Punke, Gerd Grubert, Attilio Siani, Corinna Freitag
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Patent number: 7722829Abstract: The invention provides a catalyzed soot filter formed on a wall flow substrate having internal walls coated with catalyst compositions. The soot filter maintains a homogeneous flow of the exhaust gases through the internal walls of the substrate along the length of the filter due to the coating design. Both the efficiency and the durability of the catalytic function are increased over conventionally designed catalyzed soot filters. The catalyzed soot filter provides an integrated function for simultaneously treating the gaseous components of the exhaust (e.g., CO and HC) and the particulate matter deposited in the filter.Type: GrantFiled: September 2, 2005Date of Patent: May 25, 2010Assignee: BASF Catalysts LLCInventors: Alfred Helmut Punke, Torsten Wolfgang Mueller, Michel Deeba, Kenneth Edwin Voss, John Joseph Steger, Yiu Kwan Lui