Search International and National Patent Collections

1. (WO2018046898) DIESEL OXIDATION CATALYST WITH NOX ADSORBER ACTIVITY

Pub. No.:    WO/2018/046898    International Application No.:    PCT/GB2017/052563
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Tue Sep 05 01:59:59 CEST 2017
IPC: B01D 53/94
B01J 29/74
B01J 35/04
Applicants: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventors: BIDAL, Yannick
CHIFFEY, Andrew
O'BRIEN, Matthew
MOREAU, Francois
Title: DIESEL OXIDATION CATALYST WITH NOX ADSORBER ACTIVITY
Abstract:
An oxidation catalyst for treating an exhaust gas from a diesel engine and an exhaust system comprising the oxidation catalyst are described. The oxidation catalyst comprises: a first region for adsorbing NOx, wherein the first region comprises a molecular sieve catalyst, wherein the molecular sieve catalyst comprises a noble metal and a molecular sieve; a second region for oxidising carbon monoxide (CO) and/or hydrocarbons (HCs), wherein the second region comprises palladium (Pd), gold (Au) and a support material; and a substrate having an inlet end and an outlet end.