Patent ID: 7517510
Filing Date: 2009-04-14
Classification: B01D,B01J,Y02T

Abstract:
1. A layered catalyst composite comprising: (a) a cordierite carrier; (b) a first layer deposited on the carrier, said first layer comprising palladium deposited at a loading of up to about 50 g/ft 3 on a promoter-stabilized refractory metal oxide support; (c) a second layer deposited on the first layer, said second layer comprising rhodium deposited at a loading of up to about 50 g/ft 3 on a refractory metal oxide support; and (d) a third layer deposited on the second layer, said third layer comprising palladium deposited at a loading of up to about 100 g/ft 3 on a promoter-stabilized refractory metal oxide support.