公开(公告)号：US20210069688A1

公开(公告)日：2021-03-11

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: B01J35/00 ,  B01J23/44 ,  B01J23/30 ,  B01J29/76 ,  B01J23/10 ,  B01J21/06 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  B01D53/94 ,  F01N3/28 ,  F01N3/20

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.

公开(公告)号：US20200070092A1

公开(公告)日：2020-03-05

申请号：US16479669

申请日：2018-02-13

Applicant: BASF CORPORATION

Inventor： Robert DORNER ,  Martin KALWEI

IPC: B01D53/94 ,  B01J37/02 ,  B01J21/06 ,  B01J21/12 ,  B01J23/30 ,  B01J23/42 ,  B01J35/00 ,  B01J37/08 ,  F01N3/10

Abstract: The present invention relates to a diesel oxidation catalyst comprising a substrate and a wash-coat comprising a first layer and a second layer, wherein the substrate has a substrate length, a front end and a rear end, the washcoat comprising the first layer comprising a first metal oxide and comprising a platinum group metal supported on a metal oxide support material; the second layer comprising a second metal oxide and comprising one or more of an oxidic compound of vanadium, an oxidic compound of tungsten and a zeolitic material comprising one or more of Fe and Cu; wherein the first layer is at least partially disposed directly on the substrate, or is at least partially disposed directly on an intermediate layer which is disposed directly on the substrate over the entire length of the substrate, on x % of the length of the substrate from the front end of the substrate, and wherein the second layer is at least partially disposed directly on the substrate, or is at least partially disposed directly on the intermediate layer which is disposed directly on the substrate over the entire length of the substrate, on y % of the length of the substrate from the rear end of the substrate, wherein x is in the range of from 25 to 75 and y is in the range of from 25 to 75 and wherein x+y is in the range of from 95 to 105, wherein the intermediate layer comprises alumina.

公开(公告)号：US20190314795A1

公开(公告)日：2019-10-17

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

IPC: B01J29/76 ,  B01D53/56 ,  B01D53/58 ,  B01J35/00 ,  B01J37/02 ,  F01N3/28 ,  F01N3/20 ,  B01J23/42

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.