Patent ID: 7842371
Filing Date: 2010-11-30
Classification: B01D,B01J,F01N,Y02T,Y10T

Abstract:
1. A porous ceramic article, comprising: a honeycomb ceramic structure defining a plurality of cell channels bounded by porous cell channel walls having a porosity % P that extend longitudinally from an upstream inlet end to a downstream outlet end, wherein the plurality of cell channels are present in a cell channel density of “X” cells per square inch; and a catalyst containing washcoat applied to the porous cell channel walls in a washcoat loading amount “WC” of at least 40 g/l such that the washcoat loading amount “WC” satisfies the relationships of: wherein X wherein the porous cell channel walls have a wall thickness of “Y” that satisfies the relationship Y wherein: wherein % P is in the range of from 40% to 80%.