| abstract |
Disclosing such as makes the unburned hydrocarbon (HC) of Diesel engine and advanced burning diesel oil engine emission and carbon monoxide (CO) aoxidize and make nitrogen oxides (NO for processing advanced combustion engine exhaust emission x ) reduce oxidation catalyst compound, method and system.More particularly, disclosed the washcoat complex comprising at least two washcoat, wherein the first washcoat comprises palladium component, and the second washcoat contains platinum, and at least about the 50% of platinum total amount is positioned at catalyst rear portion. |