Method and system for monitoring a hydrocarbon adsorber

摘要

A catalyst and method of forming the catalyst includes a catalyst body having hydrocarbon adsorber material and oxygen storage capacity material disposed thereon.

主权项

1. A system comprising:
a catalyst body configured to receive an exhaust gas from an engine; a hydrocarbon adsorber disposed on or within the catalyst body, wherein the hydrocarbon adsorber is configured to have a first degradation rate at temperatures greater than a predetermined temperature at which the adsorber begins to degrade; and an oxygen storage element disposed on or within the catalyst body, wherein the oxygen storage element comprises oxygen storage material, wherein the oxygen storage material is configured to have a second degradation rate at the temperatures greater than the predetermined temperature, and wherein the second degradation rate is greater than or equal to the first degradation rate.