公开(公告)号：US12071881B2

公开(公告)日：2024-08-27

申请号：US17594005

申请日：2020-04-15

Applicant: BASF Corporation

Inventor： Matthias Peter ,  Susanne Stiebels ,  Andreas Zeeb ,  Claudia Zabel ,  Maria Heenemann

IPC: B01J29/72 ,  B01J35/61 ,  B01J35/64 ,  B01J37/02 ,  F01N3/022 ,  F01N3/035 ,  F01N3/20 ,  F01N3/28

CPC classification number: F01N3/035 ,  B01J29/723 ,  B01J35/612 ,  B01J35/613 ,  B01J35/657 ,  B01J37/0215 ,  F01N3/022 ,  F01N3/2066 ,  F01N3/2803 ,  F01N2250/02 ,  F01N2260/14 ,  F01N2370/04 ,  F01N2510/063 ,  F01N2510/068

Abstract: The present invention relates to a selective catalytic reduction catalyst comprising a porous wall-flow filter substrate; wherein in the pores of the porous internal walls and on the surface of the porous internal walls, the catalyst comprises a selective catalytic reduction coating comprising a selective catalytic reduction component comprising a zeolitic material comprising one or more of copper and iron. The present invention further relates to a process for preparing a selective catalytic reduction catalyst using particles of a carbon-containing additive and an aqueous mixture comprising said particles of a carbon-containing additive.