公开(公告)号：US20220258141A1

公开(公告)日：2022-08-18

申请号：US17608184

申请日：2020-05-06

Applicant: BASF CORPORATION

Inventor： Yi Liu ,  Brian T. Jones ,  Donald H. Reeder ,  Eric George Klauber ,  Oliver Seel ,  Torsten Neubauer ,  Saeed Alerasool ,  James Dale Hoggard ,  John Robert White ,  Claudia Zabel

IPC: B01J29/76 ,  B01J37/00 ,  B01J37/04 ,  B01J35/02 ,  B01J35/10 ,  B01J37/03 ,  B01J37/08 ,  B01J37/30 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94

Abstract: The present disclosure provides catalyst compositions capable of reducing nitrogen oxide (NOx) emissions in engine exhaust, catalyst articles coated with such compositions, and processes for preparing such catalyst compositions and articles. The catalyst compositions include metal ion-exchanged zeolites useful for selective catalytic reduction (SCR) of NOx. Further provided is an exhaust gas treatment system including such catalytic articles, and methods for reducing NOx in an exhaust gas stream using such catalytic articles.