公开(公告)号：US20230073880A1

公开(公告)日：2023-03-09

申请号：US17759291

申请日：2021-01-22

申请人： BASF CORPORATION

发明人： Andreas R. Munding ,  Sandip D. Shah ,  Kai Schmitz ,  Yi Liu ,  Donald H. Reeder ,  Brian T. Jones ,  Eric George Klauber ,  James Dale Hoggard ,  Yogeshkumar Patel

IPC分类号： B01J37/02 ,  B01J35/04 ,  F01N3/28

摘要： This disclosure relates to devices and methods for coating various portions of catalyst support bodies, such as radially-zoned catalyst support bodies, such as those used in catalytic converters for treating exhaust gas streams of internal combustion engines.

公开(公告)号：US20220258141A1

公开(公告)日：2022-08-18

申请号：US17608184

申请日：2020-05-06

申请人： BASF CORPORATION

发明人： 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分类号： B01J29/76 ,  B01J37/00 ,  B01J37/04 ,  B01J35/02 ,  B01J35/10 ,  B01J37/03 ,  B01J37/08 ,  B01J37/30 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94

摘要： 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.