Monolithic-supported catalyst or groups of monolithic-...

Details Monolithic-supported catalyst or groups of monolithic-... Monolithic-supported catalyst or groups of monolithic-...

F - Mech Eng,Light,Heat,Weapons

01

N

23/342, 172/7

F01N 3/00 (2006.01) B01D 53/94 (2006.01) B01J 23/42 (2006.01) B01J 35/00 (2006.01) B01J 35/04 (2006.01) F01N 3/28 (2006.01) F01N 13/02 (2010.01)

Patent

CA 1081916

ABSTRACT OF THE DISCLOSURE The present invention provides a monolithic-supported catalyst or group of monolithic-supported catalysts for the purification of waste gases of internal combustion engines. Such catalyst or group of catalysts has an increasing content of active phases, e.g. platinum in the direction of flow of the waste gases. Such a catalyst is not subject to premature ageing or poisoning in use in the purification of the waste gases.

261936

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