公开(公告)号：EP4464403A1

公开(公告)日：2024-11-20

申请号：EP24178392.7

申请日：2016-03-18

Applicant: BASF Corporation

Inventor： TANG, Weiyong ,  KUMAR, Sanath V. ,  HALLSTROM, Kevin A ,  YOUNGREN, David M. ,  VOSS, Kenneth E.

IPC: B01D53/94 ,  B01D53/56 ,  B01J37/02 ,  B01J35/00 ,  B01J29/072 ,  B01J29/76 ,  F01N3/20 ,  F01N3/035

Abstract: Provided are catalyst articles, methods and systems for treating lean burn engine exhaust. Catalyst articles include selective catalytic reduction catalyst on a particulate filter. The SCR catalyst on the particulate filter provides limited NOx conversion so that unconverted NO 2 is available to facilitate passive oxidation of soot trapped on the particulate filter by reaction with NO 2 . Systems and methods utilize such catalytic articles, and further include, e.g., a downstream selective catalytic reduction catalyst on a flow through substrate.

公开(公告)号：EP4065273A1

公开(公告)日：2022-10-05

申请号：EP20839165.6

申请日：2020-11-26

Applicant: BASF CORPORATION

Inventor： KAZI, M., Shahjahan ,  MUNDING, Andreas R. ,  YOUNGREN, David M.

IPC: B01J23/40 ,  B01D53/94 ,  B01J23/42 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  B01J37/16 ,  B01J37/00

公开(公告)号：EP4226025A1

公开(公告)日：2023-08-16

申请号：EP21878717.4

申请日：2021-10-05

Applicant: BASF Corporation

Inventor： YOUNGREN, David M. ,  YANG, Xiaofan ,  WEI, Xinyi ,  CAUDLE, Matthew T.

IPC: F01N3/20 ,  F01N11/00

公开(公告)号：EP3271053A1

公开(公告)日：2018-01-24

申请号：EP16765816.0

申请日：2016-03-18

Applicant: BASF Corporation

Inventor： TANG, Weiyong ,  KUMAR, Sanath V. ,  HALLSTROM, Kevin A. ,  YOUNGREN, David M. ,  VOSS, Kenneth E.

IPC: B01D53/94 ,  B01D53/56

CPC classification number: F01N3/208 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2257/404 ,  B01D2258/012 ,  B01J29/072 ,  B01J29/76 ,  B01J29/763 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0246 ,  B01J2229/18 ,  F01N3/035 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02A50/2345 ,  Y02T10/24

Abstract: Provided are catalyst articles, methods and systems for treating lean burn engine exhaust. Catalyst articles include selective catalytic reduction catalyst on a particulate filter. The SCR catalyst on the particulate filter provides limited NOx conversion so that unconverted NO2 is available to facilitate passive oxidation of soot trapped on the particulate filter by reaction with NO2. Systems and methods utilize such catalytic articles, and further include, e.g., a downstream selective catalytic reduction catalyst on a flow through substrate.