Patents by Inventor Ruediger Hoyer
Ruediger Hoyer 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: 11376550Abstract: The present invention relates to a catalyst which comprises a carrier substrate of length L, which extends between a first end face a and a second end face b, and catalytically active material zones A, B and C of different composition, wherein—material zone A comprises palladium or palladium and platinum with a weight ratio of Pd:Pt>1, and cerium oxide, —material zone B comprises platinum or platinum and palladium with a weight ratio of Pt:Pd>1, and cerium oxide and/or cerium/zirconium mixed oxide, and—material zone C comprises platinum or platinum and palladium with a weight ratio of Pt:Pd>1, and a carrier oxide, and wherein—material zone B is arranged above material zone A, and—material zone C is arranged above material zone B, and, starting from the second end face b of the carrier substrate, extends over a length of up to 60% of the length L. The invention also relates to a catalyst arrangement containing said catalyst.Type: GrantFiled: August 22, 2019Date of Patent: July 5, 2022Assignee: UMICORE AG & CO. KGInventors: Anke Woerz, Ruediger Hoyer, Benjamin Betz
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Publication number: 20210252456Abstract: The present invention relates to a catalyst which comprises a carrier substrate of length L, which extends between a first end face a and a second end face b, and catalytically active material zones A, B and C of different composition, wherein—material zone A comprises palladium or palladium and platinum with a weight ratio of Pd:Pt>1, and cerium oxide, —material zone B comprises platinum or platinum and palladium with a weight ratio of Pt:Pd>1, and cerium oxide and/or cerium/zirconium mixed oxide, and—material zone C comprises platinum or platinum and palladium with a weight ratio of Pt:Pd>1, and a carrier oxide, and wherein—material zone B is arranged above material zone A, and—material zone C is arranged above material zone B, and, starting from the second end face b of the carrier substrate, extends over a length of up to 60% of the length L. The invention also relates to a catalyst arrangement containing said catalyst.Type: ApplicationFiled: August 22, 2019Publication date: August 19, 2021Applicant: UMICORE AG & CO. KGInventors: Anke WOERZ, Ruediger HOYER, Benjamin BETZ
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Publication number: 20200030745Abstract: The invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically active washcoat layers on a support body, wherein a lower washcoat layer A comprises cerium oxide, an alkaline earth metal compound and/or an alkali compound, platinum and palladium, and an upper washcoat layer B located above washcoat layer A comprises cerium oxide, platinum and palladium, does not contain any alkali and alkaline-earth compounds, and has macropores. Also disclosed is a method for converting NOx in exhaust gases from motor vehicles operated with lean-burn engines.Type: ApplicationFiled: February 21, 2017Publication date: January 30, 2020Applicant: Umicore AG & Co. KGInventors: Thomas UTSCHIG, Ruediger HOYER, Naohiro KATO
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Publication number: 20200032687Abstract: The Invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically-active washcoat layers on a support body, wherein a lower washcoat layer A comprises cerium oxide, an alkaline earth metal compound and/or an alkali compound, platinum and palladium, and manganese oxide, and an upper washcoat layer B disposed on the washcoat layer A comprises cerium oxide, platinum and palladium and does not contain any alkali and alkaline-earth compounds, and to a method for converting NOx in exhaust gases from motor vehicles which are operated with lean-burn engines.Type: ApplicationFiled: February 1, 2017Publication date: January 30, 2020Applicant: UMICORE AG & CO. KGInventors: Thomas UTSCHIG, Elena MUELLER, Ruediger HOYER
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Patent number: 10443463Abstract: The invention relates to a catalyst system for reducing nitrogen oxides, which comprises a nitrogen oxide storage catalyst and an SCR catalyst, wherein the nitrogen oxide storage catalyst consists of at least two catalytically active washcoat layers on a supporting body, wherein a lower washcoat layer A contains cerium oxide, an alkaline earth compound and/or alkali compound, as well as platinum and palladium, and an upper washcoat layer B, which is arranged over the washcoat layer A, contains cerium oxide, platinum and palladium, and no alkali compound and no alkaline earth compound. The invention also relates to a method for converting NOx in exhaust gases of motor vehicles that are operated by means of engines that are operated in a lean manner.Type: GrantFiled: August 12, 2015Date of Patent: October 15, 2019Assignee: UMICORE AG & CO. KGInventors: Ruediger Hoyer, Thomas Utschig, Michael Schiffer, Michael Seyler, Frank-Walter Schuetze
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Patent number: 10428708Abstract: The present invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically active washcoat layers on a support body, wherein a lower washcoat layer A comprises cerium oxide, an alkaline earth metal compound and/or an alkali metal compound, and platinum and palladium, and an upper washcoat layer B disposed atop the washcoat layer A comprises cerium oxide, platinum and palladium, and no alkali metal or alkaline earth metal compound, and to a method of converting NOx in exhaust gases from motor vehicles which are operated with lean-burn engines.Type: GrantFiled: August 4, 2015Date of Patent: October 1, 2019Assignee: UMICORE AG & CO. KGInventors: Thomas Utschig, Ruediger Hoyer, Elena Mueller
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Publication number: 20190224649Abstract: The present invention relates to a catalyst comprising a support body A having a length LA designed as a flow substrate, a support body B of length LB designed as a wall-flow filter, and material zones A1, A2, B1, and B2, wherein the support body A comprises material zones A1 and A2 and the support body B comprises material zones B1 and B2, wherein material zone A1 contains a cerium oxide, an alkaline earth metal compound and/or an alkali metal compound, and also platinum and/or palladium, and material zone A2 contains cerium oxide, and also platinum and/or palladium, and is free of alkali metal and alkaline earth metal compounds, material zone B1 contains palladium supported on cerium oxide, and material zone B2 contains platinum supported on a support material.Type: ApplicationFiled: July 31, 2017Publication date: July 25, 2019Applicant: UMICORE AG & CO. KGInventors: Michael SCHIFFER, Ruediger HOYER, Thomas UTSCHIG, Franz DORNHAUS, Anke WOERZ
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Patent number: 9757712Abstract: The present invention relates to a catalyst for the removal of carbon monoxide and hydrocarbon from the exhaust gas of lean-operated internal combustion engines on a supporting body, which bears platinum and/or palladium on one or more refractory carrier materials and also contains cerium oxide and which, after reductive treatment at 250° C. and after CO adsorption, is characterized by certain peaks in Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), and also relates to the use thereof for removing carbon monoxide and hydrocarbon from the exhaust gas of lean-operated internal combustion engines.Type: GrantFiled: October 22, 2014Date of Patent: September 12, 2017Assignee: UMICORE AG & CO. KGInventors: Ruediger Hoyer, Fei Wen, Elena Mueller
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Publication number: 20170226917Abstract: The present invention relates to a method for cleaning exhaust gas, and a correspondingly designed exhaust gas system. The present method, or the corresponding system, serves to avoid the formation of nitrous oxide as a secondary exhaust gas, which may primarily be created during the loading of specific catalyst types with NH3.Type: ApplicationFiled: February 3, 2017Publication date: August 10, 2017Applicant: UMICORE AG & CO. KGInventors: Frank ADAM, Ruediger HOYER
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Publication number: 20170218809Abstract: The invention relates to a catalyst system for reducing nitrogen oxides, which comprises a nitrogen oxide storage catalyst and an SCR catalyst, wherein the nitrogen oxide storage catalyst consists of at least two catalytically active washcoat layers on a supporting body, wherein a lower washcoat layer A contains cerium oxide, an alkaline earth compound and/or alkali compound, as well as platinum and palladium, and an upper washcoat layer B, which is arranged over the washcoat layer A, contains cerium oxide, platinum and palladium, and no alkali compound and no alkaline earth compound. The invention also relates to a method for converting NOx in exhaust gases of motor vehicles that are operated by means of engines that are operated in a lean manner.Type: ApplicationFiled: August 12, 2015Publication date: August 3, 2017Applicant: UMICORE AG & CO. KGInventors: Ruediger HOYER, Thomas UTSCHIG, Michael SCHIFFER, Michael SEYLER, Frank-Walter SCHUETZE
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Publication number: 20170183995Abstract: The present invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically active washcoat layers on a support body, wherein a lower washcoat layer A comprises cerium oxide, an alkaline earth metal compound and/or an alkali metal compound, and platinum and palladium, and an upper washcoat layer B disposed atop the washcoat layer A comprises cerium oxide, platinum and palladium, and no alkali metal or alkaline earth metal compound, and to a method of converting NOx in exhaust gases from motor vehicles which are operated with lean-burn engines.Type: ApplicationFiled: August 4, 2015Publication date: June 29, 2017Applicant: UMICORE AG & CO. KGInventors: Thomas UTSCHIG, Ruediger HOYER, Elena MUELLER
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Patent number: 9662638Abstract: The present invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically active coatings on a support body, wherein a lower coating A contains cerium oxide, and platinum and/or palladium, but no alkaline earth metal compound, and an upper coating B which is disposed above coating A contains an alkaline earth metal compound, a basic mixed magnesium-aluminum oxide, and platinum and palladium, and to a method for converting NOx in exhaust gases of motor vehicles which are operated with lean-burn engines.Type: GrantFiled: January 6, 2014Date of Patent: May 30, 2017Assignee: UMICORE AG & CO. KGInventors: Ruediger Hoyer, Anke Schuler, Elena Mueller, Thomas Utschig, Gerald Jeske
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Patent number: 9527036Abstract: The present invention relates to a catalyst system for treatment of diesel exhaust gas, comprising, in flow direction of the exhaust gas, a nitrogen oxide storage catalyst containing a nitrogen oxide storage component and noble metal and a diesel particulate filter containing noble metal selected from the group of platinum, palladium, and platinum and palladium, characterized in that the noble metal loading of the nitrogen oxide storage catalyst is 100 to 180 g/ft3 (3.53 to 6.36 g/L) and the noble metal loading of the diesel particulate filter is 5 to 35 g/ft3 (0.18 to 1.24 g/L).Type: GrantFiled: November 8, 2013Date of Patent: December 27, 2016Assignee: UMICORE AG & CO. KGInventors: Michael Schiffer, Ulrich Goebel, Franz Dornhaus, Anke Schuler, Ruediger Hoyer, Marcus Pfeifer, Gerald Jeske
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Patent number: 9433899Abstract: The invention relates to a method for removing carbon monoxide and hydrocarbons from the exhaust gas of lean-burn internal combustion engines, said exhaust gas being passed over a catalyst which contains platinum supported on one or more refractory supporting materials, pure cerium oxide, and optionally an additional noble metal selected from the group consisting of platinum, palladium and rhodium, wherein the pure cerium oxide is in close contact with the noble metal.Type: GrantFiled: March 26, 2013Date of Patent: September 6, 2016Assignee: UMICORE AG & CO. KGInventors: Ruediger Hoyer, Anke Schuler, Stefan Franoschek, Thomas R. Pauly, Gerald Jeske
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Publication number: 20160236180Abstract: The present invention relates to a catalyst for the removal of carbon monoxide and hydrocarbon from the exhaust gas of lean-operated internal combustion engines on a supporting body, which bears platinum and/or palladium on one or more refractory carrier materials and also contains cerium oxide and which, after reductive treatment at 250° C. and after CO adsorption, is characterized by certain peaks in Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), and also relates to the use thereof for removing carbon monoxide and hydrocarbon from the exhaust gas of lean-operated internal combustion engines.Type: ApplicationFiled: October 22, 2014Publication date: August 18, 2016Applicant: UMICORE AG & CO. KGInventors: Ruediger HOYER, Fei WEN, Elena MUELLER
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Patent number: 9328682Abstract: The present invention relates to a regulating strategy for a special catalytic converter for exhaust-gas aftertreatment. The catalytic converter concept is distinguished in that at least two nitrogen oxide storage catalytic converters are used in the exhaust section of a vehicle. The first, possibly close-coupled unit is followed by one or more nitrogen oxide storage catalytic converters, which are possibly situated in the underbody of the vehicle. The nitrogen oxide storage catalytic converters are then regenerated as a function of the exceedance of nitrogen oxide threshold vales downstream thereof.Type: GrantFiled: September 21, 2009Date of Patent: May 3, 2016Assignee: UMICORE AG & CO. KGInventors: Ruediger Hoyer, Stefan Franoschek, Stephan Eckhoff
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Publication number: 20160051930Abstract: The invention relates to a method for removing carbon monoxide and hydrocarbons from the exhaust gas of lean-burn internal combustion engines, said exhaust gas being passed over a catalyst which contains platinum supported on one or more refractory supporting materials, pure cerium oxide, and optionally an additional noble metal selected from the group consisting of platinum, palladium and rhodium, wherein the pure cerium oxide is in close contact with the noble metal.Type: ApplicationFiled: March 26, 2013Publication date: February 25, 2016Inventors: Ruediger HOYER, Anke SCHULER, Stefan FRANOSCHEK, Thomas R. PAULY, Gerald JESKE
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Publication number: 20150352495Abstract: The present invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically active washcoat layers on a support body, wherein a lower washcoat layer A contains cerium oxide, an alkaline earth metal compound and/or an alkali metal compound, and also platinum, and an upper washcoat layer B disposed atop the washcoat layer A, containing cerium oxide, and also platinum and palladium, and no alkaline earth metal compound, and a method for converting NOx in the exhaust gases of motor vehicles which are operated with lean-burn engines.Type: ApplicationFiled: February 21, 2014Publication date: December 10, 2015Applicant: UMICORE AG & CO. KGInventors: Ruediger HOYER, Anke SCHULER, Thomas UTSCHIG, Elena MUELLER
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Publication number: 20150336085Abstract: The present invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically active coatings on a support body, wherein a lower coating A contains cerium oxide, and platinum and/or palladium, but no alkaline earth metal compound, and an upper coating B which is disposed above coating A contains an alkaline earth metal compound, a basic mixed magnesium-aluminum oxide, and platinum and palladium, and to a method for converting NOx in exhaust gases of motor vehicles which are operated with lean-burn engines.Type: ApplicationFiled: January 6, 2014Publication date: November 26, 2015Applicant: UMICORE AG & CO. KGInventors: Ruediger HOYER, Anke SCHULER, Elena MUELLER, Thomas UTSCHIG, Gerald JESKE
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Publication number: 20150273394Abstract: The present invention relates to a catalyst system for treatment of diesel exhaust gas, comprising, in flow direction of the exhaust gas, a nitrogen oxide storage catalyst containing a nitrogen oxide storage component and noble metal and a diesel particulate filter containing noble metal selected from the group of platinum, palladium, and platinum and palladium, characterized in that the noble metal loading of the nitrogen oxide storage catalyst is 100 to 180 g/ft3 (153 to 6.36 g/L) and the noble metal loading of the diesel particulate filter is 5 to 35 g/ft3 (0.18 to 1.24 g/L.).Type: ApplicationFiled: November 8, 2013Publication date: October 1, 2015Applicant: UMICORE AG & CO. KGInventors: Michael Schiffer, Ulrich Goebel, Franz Dornhaus, Anke Schuler, Ruediger Hoyer, Marcus Pfeifer, Gerald Jeske