公开(公告)号：WO2022122798A1

公开(公告)日：2022-06-16

申请号：PCT/EP2021/084732

申请日：2021-12-08

申请人： BASF CORPORATION [US]/[US] ,  BASF SE [DE]/[DE] (KN)

发明人： DORNER, Robert ,  PAUL, Tobias ,  HUENNEKES, Edgar Viktor ,  BECKER, Jan Martin ,  BEARD, Kevin

IPC分类号： B01D53/94 ,  B01J21/06 ,  B01J23/22 ,  B01J23/44 ,  B01J29/76 ,  F01N3/10 ,  F01N3/20 ,  B01J35/04 ,  B01J37/02 ,  F01N13/00

摘要： The present invention relates to an exhaust gas treatment system for treating an exhaust gas stream exiting a diesel engine, wherein said exhaust gas treatment system comprises a first catalyst having an inlet end and an outlet end and comprising a coating disposed on a substrate, wherein the coating comprises palladium supported on an oxidic material comprising zirconium and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; a second catalyst having an inlet end and an outlet end and comprising a coating disposed on a substrate, wherein the coating comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron, wherein at most 0.0001 weight-% of the coating of the second catalyst consists of platinum group metal.