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：US20220250005A1

公开(公告)日：2022-08-11

申请号：US17661058

申请日：2022-04-28

Applicant: BASF Corporation

Inventor： Kenneth E. VOSS ,  Kevin A. HALLSTROM ,  Sanath V. KUMAR ,  Susanne STIEBELS ,  Marius VAARKAMP

IPC: B01D53/94 ,  F01N3/023 ,  F01N3/08 ,  F01N3/20

Abstract: Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.