公开(公告)号：EP3209870A4

公开(公告)日：2018-07-25

申请号：EP15851907

申请日：2015-10-21

Applicant: BASF CORP

Inventor： ZHENG XIAOLAI ,  JI CHUNXIN ,  XUE WEN-MEI ,  SCHLADT MATTHEW J ,  WANG XIAOMING ,  LUO TIAN ,  DEEBA MICHEL ,  WASSERMANN KNUT

IPC: F01N3/08 ,  B01J29/40 ,  B01J29/85 ,  F01N3/20

CPC classification number: B01D53/945 ,  B01D53/9418 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/9022 ,  B01D2255/912 ,  B01D2255/9207 ,  B01J23/56 ,  B01J23/63 ,  B01J29/005 ,  B01J29/40 ,  B01J29/46 ,  B01J29/7007 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/80 ,  B01J29/85 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  B01J2523/00 ,  Y02T10/24 ,  B01J2523/25 ,  B01J2523/31 ,  B01J2523/37 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/824 ,  B01J2523/822 ,  B01J2523/828

Abstract: An emissions treatment system for an exhaust stream of an internal combustion engine including hydrocarbons, carbon monoxide, and nitrogen oxides is provided. The disclosed system can include an exhaust conduit in fluid communication with the internal combustion engine via an exhaust manifold; a first three-way conversion catalyst (TWC-1) located downstream of the internal combustion engine in the exhaust conduit; an SCR-HCT catalyst comprising a selective catalytic reduction catalyst and a hydrocarbon trap downstream of the TWC-1 in the exhaust conduit; and a third catalyst downstream of the SCR-HCT combination in the exhaust conduit, the third catalyst comprising a platinum group metal (PGM) e.g., in an amount effective to oxidize hydrocarbons. Methods of making and using such systems and components thereof are also provided.