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公开(公告)号:US20220297093A1
公开(公告)日:2022-09-22
申请号:US17636554
申请日:2020-08-18
申请人: UMICORE AG & CO. KG
发明人: Birgit FRIEDRICH , Gordon KEITL
摘要: The present invention relates to a composition comprising platinum supported on titanium oxide, the platinum particles having an average particle diameter of 50-200 nm. The composition has a surprisingly low light-off temperature for the ammonia oxidation and a high selectivity for oxidation to N2.
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公开(公告)号:US20200378286A1
公开(公告)日:2020-12-03
申请号:US16959733
申请日:2019-01-04
申请人: UMICORE AG & CO. KG
发明人: Christoph HENGST , Gordon KEITL , Michael LENNARTZ
IPC分类号: F01N3/08 , F01N3/20 , B01J37/02 , B01J29/068 , B01J29/04
摘要: The present invention relates to a catalyst, comprising a carrier substrate of the length (L) which extends between two carrier substrate ends (a and b) and has two coating zones (A and B), wherein the coating zone (A) comprises a zeolite and palladium and, proceeding from the carrier substrate end (a), extends on a part of the length (L), the coating zone (B) comprises the same components as coating zone (A) and platinum and, proceeding from the carrier substrate end (b), extends on a part of the length (L), wherein L=LA+LB, wherein LA denotes the length of the coating zone (A) and LB denotes the length of the coating zone (B). The invention also relates to an exhaust system containing said catalyst.
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公开(公告)号:US20220379293A1
公开(公告)日:2022-12-01
申请号:US17772316
申请日:2020-10-30
申请人: UMICORE AG & CO. KG
发明人: Elena MUELLER , Gordon KEITL , Wulf HAUPTMANN
摘要: The present invention relates to a diesel oxidation catalyst comprising a carrier body having a length L extending between a first end face and a second end face, and differently composed material zones A and B arranged on the carrier body, wherein material zone A comprises platinum and palladium applied to a cerium-titanium mixed oxide, and material zone B comprises platinum and palladium applied to a carrier oxide B.
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