Patents by Inventor Marcus Hilgendorff
Marcus Hilgendorff 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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Publication number: 20240109036Abstract: The present invention relates to an exhaust gas treatment system for reducing ammonia emission from a gasoline engine comprising a three-way conversion catalyst (TWC) or a four-way conversion catalyst (FWC), further comprising an ammonia oxidation catalyst (AMOx) or a selective catalytic reduction catalyst (SCR), and a method of treating exhaust gas from a gasoline engine with an exhaust gas treatment system capable of removing ammonia.Type: ApplicationFiled: February 1, 2022Publication date: April 4, 2024Inventors: Manale Maalouf, Florian Waltz, Karifala Dumbuya, Marcus Hilgendorff, Markus Kinne, Thomas Schmitz
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Patent number: 11549417Abstract: The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising: a flow-through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow through substrate extending therethrough; a coating disposed on the surface of the internal walls of the substrate, wherein the coating comprises a non-zeolitic oxidic material comprising manganese and one or more of the metals of the groups 4 to 11 and 13 of the periodic table, and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron.Type: GrantFiled: April 23, 2019Date of Patent: January 10, 2023Assignee: BASF CorporationInventors: Marcus Hilgendorff, Karifala Dumbuya, Matthias Peter, Andreas Sundermann
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Publication number: 20220203338Abstract: The present invention relates to an ammonia oxidation catalyst for the treatment of an exhaust gas stream, the catalyst comprising a coating disposed on a substrate, wherein the coating comprises a selective catalytic reduction component being a zeolitic material comprising one or more of copper and iron; and an oxidation catalytic component comprising platinum supported on a porous non-zeolitic oxidic support, wherein the oxidation catalytic component further comprises a first oxidic material supported on the porous non-zeolitic oxidic support supporting platinum, wherein the first oxidic material comprises titania.Type: ApplicationFiled: May 20, 2020Publication date: June 30, 2022Inventor: Marcus HILGENDORFF
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Patent number: 11213789Abstract: A catalyst containing a washcoat including copper or iron on a small pore molecular sieve material having a maximum ring size of eight tetrahedral atoms physically mixed with platinum and rhodium on a refractory metal oxide support including alumina, silica, zirconia, titania, and a physical mixture or a chemical combination or an atomically doped combination thereof is described. A catalyst containing a first washcoat zone substantially free of platinum group metal and including copper or iron on a small pore molecular sieve material having a maximum ring size of eight tetrahedral atoms; and a second washcoat zone including copper or iron on a small pore molecular sieve material having a maximum ring size of eight tetrahedral atoms physically mixed with platinum or platinum and rhodium on a refractory metal oxide support including alumina, silica, zirconia, titania, and a physical mixture or a chemical combination or an atomically doped combination thereof is provided.Type: GrantFiled: August 29, 2016Date of Patent: January 4, 2022Assignee: BASF CorporationInventors: Marcus Hilgendorff, Karifala Dumbuya, Claudia Zabel, Susanne Stiebels
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Publication number: 20210172361Abstract: The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising: a flow-through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow through substrate extending therethrough; a coating disposed on the surface of the internal walls of the substrate, wherein the coating comprises a non-zeolitic oxidic material comprising manganese and one or more of the metals of the groups 4 to 11 and 13 of the periodic table, and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron.Type: ApplicationFiled: April 23, 2019Publication date: June 10, 2021Applicant: BASF CorporationInventors: Marcus HILGENDORFF, Karifala DUMBUYA, Matthias PETER, Andreas SUNDERMANN
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Patent number: 10493434Abstract: A lean burn engine exhaust treatment articles comprising a low temperature lean NOx trap (LT-LNT) composition and methods for their use is disclosed. A lean burn engine exhaust gas treatment system including the lean burn engine exhaust treatment articles is also disclosed. The low temperature lean NOx trap (LT-LNT) compositions can comprise a washcoat layer on a carrier substrate, the washcoat layer including a platinum group metal component impregnated on a first support material comprising at least 50% alumina. The washcoat layer may further include a low temperature NOx storage material comprising a bulk particulate reducible metal oxide. Methods of monitoring the aging state of a lean burn oxidation catalyst in a lean burn engine catalyst system are also disclosed.Type: GrantFiled: March 3, 2016Date of Patent: December 3, 2019Assignee: BASF CorporationInventors: Gerd Grubert, Torsten Neubauer, Alfred Punke, Marcus Hilgendorff, Yuejin Li
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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: 10449522Abstract: Processes for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts are disclosed. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to reduce cost and reduce harmful byproducts. Aspects of the present invention also relate generally to lean NOx trap (LNT) comprising nitrogen oxide storage materials.Type: GrantFiled: July 29, 2016Date of Patent: October 22, 2019Assignee: BASF CorporationInventors: Marcus Hilgendorff, Andreas Stohr, Hermann Bidlingmaier, Joachim Fellger
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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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Patent number: 10226754Abstract: A lean NOx trap composition for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO), and the trapping and reduction of nitrogen oxides (NOx) is disclosed. The lean NOx trap composition can have a washcoat layer on a carrier substrate including a first support material comprising greater than 50% by weight of a reducible metal oxide; 10 to 30% by weight of alkaline earth metal supported on a second support material comprising a refractory metal oxide and 50% or less by weight of a reducible metal oxide and; and a platinum group metal component supported on at least one of the first support material and/or the second support material. A portion of the first support material may further include 0.5% to 10% by weight of an alkaline earth metal.Type: GrantFiled: March 3, 2016Date of Patent: March 12, 2019Assignee: BASF CorporationInventors: Gerd Grubert, Torsten Neubauer, Alfred Punke, Marcus Hilgendorff, Marko Buchholz, Matthew Caudle
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Patent number: 10215073Abstract: The present invention relates to catalyzed soot filter comprising a porous wall flow substrate, a catalyst for selective catalytic reduction (SCR), a palladium component, and a platinum component, the wall flow substrate comprising an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of channels defined by internal walls of the wall flow substrate, wherein the plurality of channels comprise inlet channels having an open inlet end and a closed outlet end, and outlet channels having a closed inlet end and an open outlet end, and the SCR catalyst is provided on the entire surface of the inlet channel walls and on at least a portion of the surface of the pores within the channel walls underneath the surface of the channel walls coated with the SCR catalyst.Type: GrantFiled: May 18, 2016Date of Patent: February 26, 2019Assignee: BASF CorporationInventors: Alfred Punke, Gerd Grubert, Marcus Hilgendorff, Torsten Neubauer, Matthew Caudle, Yuejin Li
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Publication number: 20190022584Abstract: A catalyst containing a washcoat including copper or iron on a small pore molecular sieve material having a maximum ring size of eight tetrahedral atoms physically mixed with platinum and rhodium on a refractory metal oxide support including alumina, silica, zirconia, titania, and a physical mixture or a chemical combination or an atomically doped combination thereof is described. A catalyst containing a first washcoat zone substantially free of platinum group metal and including copper or iron on a small pore molecular sieve material having a maximum ring size of eight tetrahedral atoms; and a second washcoat zone including copper or iron on a small pore molecular sieve material having a maximum ring size of eight tetrahedral atoms physically mixed with platinum or platinum and rhodium on a refractory metal oxide support including alumina, silica, zirconia, titania, and a physical mixture or a chemical combination or an atomically doped combination thereof is provided.Type: ApplicationFiled: August 29, 2016Publication date: January 24, 2019Applicant: BASF SEInventors: Marcus HILGENDORFF, Karifala DUMBUYA, Claudia ZABEL, Susanne STIEBELS
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Publication number: 20180214856Abstract: Processes for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts are disclosed. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to reduce cost and reduce harmful byproducts. Aspects of the present invention also relate generally to lean NOx trap (LNT) comprising nitrogen oxide storage materials.Type: ApplicationFiled: July 29, 2016Publication date: August 2, 2018Applicant: BASF SEInventors: Marcus HILGENDORFF, Andreas STOHR, Hermann BIDLINGMAIER, Joachim FELLGER
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Publication number: 20180163596Abstract: The present invention relates to catalyzed soot filter comprising a porous wall flow substrate, a catalyst for selective catalytic reduction (SCR), a palladium component, and a platinum component, the wall flow substrate comprising an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of channels defined by internal walls of the wall flow substrate, wherein the plurality of channels comprise inlet channels having an open inlet end and a closed outlet end, and outlet channels having a closed inlet end and an open outlet end, and the SCR catalyst is provided on the entire surface of the inlet channel walls and on at least a portion of the surface of the pores within the channel walls underneath the surface of the channel walls coated with the SCR catalyst.Type: ApplicationFiled: May 18, 2016Publication date: June 14, 2018Applicant: BASF CorporationInventors: Alfred PUNKE, Gerd GRUBERT, Marcus HILGENDORFF, Torsten NEUBAUER, Matthew CAUDLE, Yuejin LI
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Publication number: 20180043335Abstract: A lean burn engine exhaust treatment articles comprising a low temperature lean NOx trap (LT-LNT) composition and methods for their use is disclosed. A lean burn engine exhaust gas treatment system including the lean burn engine exhaust treatment articles is also disclosed. The low temperature lean NOx trap (LT-LNT) compositions can comprise a washcoat layer on a carrier substrate, the washcoat layer including a platinum group metal component impregnated on a first support material comprising at least 50% alumina. The washcoat layer may further include a low temperature NOx storage material comprising a bulk particulate reducible metal oxide. Methods of monitoring the aging state of a lean burn oxidation catalyst in a lean burn engine catalyst system are also disclosed.Type: ApplicationFiled: March 3, 2016Publication date: February 15, 2018Applicant: BASF CorporationInventors: Gerd GRUBERT, Torsten NEUBAUER, Alfred PUNKE, Marcus HILGENDORFF, Yuejin LI
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Publication number: 20180043336Abstract: A lean NOx trap composition for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO), and the trapping and reduction of nitrogen oxides (NOx) is disclosed. The lean NOx trap composition can have a washcoat layer on a carrier substrate including a first support material comprising greater than 50% by weight of a reducible metal oxide; 10 to 30% by weight of alkaline earth metal supported on a second support material comprising a refractory metal oxide and 50% or less by weight of a reducible metal oxide and; and a platinum group metal component supported on at least one of the first support material and/or the second support material. A portion of the first support material may further include 0.5% to 10% by weight of an alkaline earth metal.Type: ApplicationFiled: March 3, 2016Publication date: February 15, 2018Applicant: BASF CorporationInventors: Gerd GRUBERT, Torsten NEUBAUER, Alfred PUNKE, Marcus HILGENDORFF, Marko BUCHHOLZ, Matthew CAUDLE
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Patent number: 9610564Abstract: A lean NOx trap for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO), and the trapping and reduction of nitrogen oxides (NOx) is disclosed. Nitrogen oxide storage catalysts can comprise a layer on a substrate including ceria-alumina particles having a ceria phase present in a weight percent of the composite in the range of about 20% to about 80% on an oxide basis, an alkaline earth metal component supported on the ceria-alumina particles, wherein the CeO2 is present in the form of crystallites that are hydrothermally stable and have an average crystallite size less than 130 ? after aging at 950° C. for 5 hours in 2% O2 and 10% steam in N2.Type: GrantFiled: March 11, 2014Date of Patent: April 4, 2017Assignee: BASF CorporationInventors: Wen-Mei Xue, Xinyi Wei, Marcus Hilgendorff, Patrick Burk
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Patent number: 9611774Abstract: A catalyst for the treatment of exhaust gas emissions is disclosed. The catalyst can comprise ceria-alumina particles having a ceria phase present in a weight percent of the composite in the range of about 20% to about 80% on an oxide basis, an alkaline earth metal component supported on the ceria-alumina particles, wherein the CeO2 is present in the form of crystallites that are hydrothermally stable and have an average crystallite size less than 160 ? after aging at 950° C. for 5 hours in 2% O2 and 10% steam in N2.Type: GrantFiled: August 25, 2014Date of Patent: April 4, 2017Assignee: BASF CorporationInventors: Wen-Mei Xue, Xinyi Wei, Marcus Hilgendorff, Patrick Burk
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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: 9540980Abstract: Nitrogen oxide storage catalysts comprising a substrate and at least two coating layers, where the second layer is substantially free of platinum, cerium and barium, and methods of manufacturing and using these nitrogen oxide storage catalysts are disclosed.Type: GrantFiled: July 27, 2009Date of Patent: January 10, 2017Assignee: BASF SEInventor: Marcus Hilgendorff