公开(公告)号：US20240035407A1

公开(公告)日：2024-02-01

申请号：US18265482

申请日：2021-12-08

Applicant: BASF Corporation

Inventor： Robert Dorner ,  Tobias Paul ,  Edgar Viktor Huennekes ,  Jan Martin Becker ,  Kevin Beard

IPC: F01N3/28 ,  F01N3/20 ,  F01N13/00

CPC classification number: F01N3/2803 ,  F01N3/2066 ,  F01N13/0097 ,  F01N2510/0684 ,  F01N2370/04

Abstract: The present invention relates to an exhaust gas treatment system for treating an exhaust gas stream exiting a diesel engine, wherein said exhaust gas treatment system comprises a first catalyst having an inlet end and an outlet end and comprising a coating disposed on a substrate, wherein the coating comprises palladium supported on an oxidic material comprising zirconium and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; a second catalyst having an inlet end and an outlet end and comprising a coating disposed on a substrate, wherein the coating comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron, wherein at most 0.0001 weight-% of the coating of the second catalyst consists of platinum group metal.

公开(公告)号：US20240167410A1

公开(公告)日：2024-05-23

申请号：US18549242

申请日：2022-03-09

Applicant: BASF Corporation

Inventor： Jiadi Zhang ,  Yijiang Wu ,  Liang Chen ,  Shuxin Lv ,  Yu Zhang ,  Edgar Viktor Huennekes ,  Kevin Beard ,  Joseph A Patchett ,  Jan Martin Becker ,  Martin Kalwei

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/22 ,  B01J29/76 ,  B01J35/00 ,  B01J35/57 ,  B01J35/61 ,  B01J37/02 ,  B01J37/08 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20

CPC classification number: F01N3/2803 ,  B01D53/9418 ,  B01D53/9472 ,  B01J23/22 ,  B01J29/7615 ,  B01J35/19 ,  B01J35/57 ,  B01J35/617 ,  B01J37/0228 ,  B01J37/0236 ,  B01J37/08 ,  F01N3/035 ,  F01N3/101 ,  F01N3/106 ,  F01N3/2066 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/502 ,  B01D2255/707 ,  B01D2255/9035 ,  B01D2255/9155 ,  B01D2255/9207 ,  B01D2257/404 ,  B01D2258/012 ,  F01N2370/04

Abstract: The present invention relates to a catalytic article for purifying an exhaust gas containing nitrogen oxides, which comprises a first region containing a vanadium-based SCR catalyst, a second region containing a metal-promoted molecular sieve catalyst, and a third region containing a vanadium-based SCR catalyst, wherein at least part of the second region is located downstream of at least part of the first region and upstream of at least part of the third region in the exhaust gas flow direction, provided that no part of the second region is located upstream of the first region or downstream of the third region. The present invention also relates to a method and a system for treatment of an exhaust gas containing nitrogen oxides by selective catalytic reduction using the catalytic article.

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.