Exhaust gas purifying catalyst and process for purifying...

Details Exhaust gas purifying catalyst and process for purifying... Exhaust gas purifying catalyst and process for purifying...

B - Operations, Transporting

01

J

B01J 29/068 (2006.01) B01D 53/94 (2006.01) B01J 29/40 (2006.01) B01J 29/44 (2006.01) B01J 37/02 (2006.01) B01J 37/30 (2006.01)

Patent

CA 2464567

An exhaust gas purifying catalyst characterized by having zeolite subjected to ion exchange with cerium and deposited on cerium oxide as well and containing platinum and/or palladium, and a process for purifying the exhaust gas using the catalyst. The catalyst, by using zeolite and a noble metal, is enabled to acquire improved durability.

L'invention concerne un catalyseur pour l'épuration de gaz d'échappement en assujettissant le zéolite à un échange d'ion avec du cérium et en le déposant sur de l'oxyde de cérium contenant de la platine et/ou du palladium, et un processus pour purifier le gaz d'échappement au moyen du catalyseur. Grâce à l'utilisation du zéolite et d'un métal noble, le catalyseur peut acquérir une durabilité améliorée.

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