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1. (WO2018015259) DIESEL OXIDIZING CATALYTIC CONVERTER

Pub. No.:    WO/2018/015259    International Application No.:    PCT/EP2017/067651
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Fri Jul 14 01:59:59 CEST 2017
IPC: B01J 23/42
B01J 23/44
B01J 35/00
B01J 35/04
B01J 23/58
B01J 37/02
B01D 53/94
F01N 3/28
F01N 3/10
Applicants: UMICORE AG & CO. KG
Inventors: HENGST, Christoph
REITH, Christoph
SCHIFFER, Michael
Title: DIESEL OXIDIZING CATALYTIC CONVERTER
Abstract:
The present invention relates to a diesel oxidizing catalytic converter which comprises a supporting body with a length L which extends between a first end surface a and a second end surface b, and catalytically active material zones A and B of different composition which are arranged on the supporting body, wherein - material zone A comprises palladium or platinum and palladium in a weight ratio Pt:Pd of < 1 and, starting from the end surface a, extends to from 20% to 80% of the length L, and - material zone B comprises platinum and palladium in a weight ratio Pt:Pd of < 10 and extends to from 80% to 100% of the length L, and wherein material zone B is arranged above material zone A and the weight ratio Pt:Pd in relation to the material zones A and B is from 1.5 to 3.0.