Patent ID: 8394348
Filing Date: 2013-03-12
Classification: B01D,B01J,Y02T

Abstract:
1. A catalyst composite for the purification of exhaust gases of a combustion engine substantially running under stoichiometric conditions comprising in sequence and in order: a front double layer on a substrate having a front 1 a rear double layer on a substrate having a rear 1 wherein the front 2 wherein the front 1 wherein the rear 1 wherein the front double layer forms a front zone and the rear double layer forms a rear zone where the catalyst composite is a single brick system or the front double layer is located in a front brick and the rear double layer is located in a rear brick where the catalyst composite is a multi-brick system; and wherein the content of oxygen storage component (OSC) by weight of the layers are as follows: front 1 front 2 rear 2