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公开(公告)号：US11154847B2
公开(公告)日：2021-10-26
申请号：US16619861
申请日：2018-06-08
Applicant: BASF Corporation
Inventor： Joseph A. Patchett , Kevin Beard , Edgar Viktor Huennekes , Robert Dorner , Kevin A Hallstrom , Ansgar Wille , Kenneth E Voss , Martin Kalwei
IPC: B01D53/94 , B01J21/06 , B01J23/10 , B01J23/30 , B01J23/44 , B01J29/76 , B01J35/00 , B01J35/04 , B01J37/02 , B01J37/08 , F01N3/20 , F01N3/28
Abstract: The present invention relates to a catalytic article comprising a substrate having a catalyst composition disposed thereon, wherein the catalyst composition comprises a platinum group metal impregnated onto a porous support and a selective catalytic reduction catalyst, wherein the catalyst composition is substantially free of platinum; and wherein the catalytic article is effective in the abatement of nitrogen oxides (NOx) and hydrocarbons (HCs). The present invention further relates to exhaust gas treatment systems for treating an exhaust gas stream exiting a diesel engine.
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公开(公告)号：US11794174B2
公开(公告)日：2023-10-24
申请号：US16462048
申请日：2017-12-05
Applicant: BASF Corporation
Inventor： Robert Dorner , Martin Kalwei , Ansgar Wille , Kevin David Beard , Edgar Viktor Huennekes
CPC classification number: B01J29/763 , B01D53/56 , B01D53/58 , B01J23/42 , B01J35/0006 , B01J37/0244 , F01N3/2066 , F01N3/2803 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/20776 , B01D2255/50 , B01D2255/9022 , B01D2258/01 , F01N2370/02
Abstract: The present invention relates to a catalyst, preferably for the selective catalytic reduction of NOx, for the oxidation of ammonia, for the oxidation of NO and for the oxidation of a hydrocarbon, the catalyst comprising a washcoat comprising one or more layers, the washcoat being disposed on a substrate, wherein the washcoat comprises a platinum group metal supported on a metal oxide support material, and one or more of an oxidic compound of V, an oxidic compound of W and a zeolitic material comprising one or more of Cu and Fe.
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公开(公告)号：US11691125B2
公开(公告)日：2023-07-04
申请号：US17045925
申请日：2019-04-30
Applicant: BASF Corporation
Inventor： Robert Dorner , Ansgar Wille , Kevin David Beard
CPC classification number: B01J23/22 , B01J23/72 , B01J23/745 , B01J29/763 , B01J37/0228 , F01N3/2066
Abstract: The present invention relates to a catalyst for the oxidation of NO, for the oxidation of ammonia, for the oxidation of HC and for the selective catalytic reduction of NOx, 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 first coating comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; a second coating comprising a first platinum group metal component supported on a non-zeolitic first oxidic material and further comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; optionally a third coating comprising a second platinum group metal component supported on a second oxidic material; wherein the third coating is disposed on the surface of the internal walls and under the second coating over z % of the axial length of the substrate from the outlet end to the inlet end, with z being in the range of from 0 to 100; wherein the second coating extends over y % of the axial length of the substrate from the inlet end to the outlet end and is disposed either on the surface of the internal walls, or on the surface of the internal walls and the third coating, or on the third coating, with y being in the range of from 95 to 100; wherein the first coating extends over x % of the axial length of the substrate from the inlet end to the outlet end and is disposed on the second coating, with x being in the range of from 20 to y.
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