Catalytically coated diesel particle filter, process for...

Details Catalytically coated diesel particle filter, process for... Catalytically coated diesel particle filter, process for...

B - Operations, Transporting

01

J

B01J 23/42 (2006.01) B01D 53/94 (2006.01) B01J 23/44 (2006.01) B01J 29/08 (2006.01) B01J 29/18 (2006.01) B01J 29/70 (2006.01) B01J 37/02 (2006.01) F01N 3/022 (2006.01) F01N 3/28 (2006.01)

Patent

CA 2661783

A diesel particle filter having an oxidation catalyst comprising platinum and palladium deposited thereon is described. The conversion of hydrocarbons and carbon monoxide can be significantly improved by mixing zeolites as HC storage components into the oxidation catalyst. Furthermore, the particle filter is coated with a second catalyst which does not contain any zeolites from the inlet end to part of the length.

L'invention concerne un filtre à particules diesel sur lequel un catalyseur d'oxydation au platine et au palladium est déposé. En mélangeant des zéolithes servant de composants d'accumulation d'hydrocarbures au catalyseur d'oxydation, on peut améliorer nettement la conversion des hydrocarbures et du monoxyde de carbone. En outre, le filtre à particules est revêtu depuis son côté d'entrée et sur une partie de sa longueur par un deuxième catalyseur qui ne contient pas de zéolithes.

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