CATALYST ARTICLE FOR REDUCING ENGINE EXHAUST GAS EMISSIONS, EMISSION TREATMENT SYSTEM FOR TREATMENT OF EXHAUST GAS CURRENT AND METHOD FOR MANUFACTURING CATALYST ARTICLE

摘要

A diesel oxidation catalyst article is provided which includes a substrate conveyor having a plurality of channels adapted for gas flow and a catalyst composition positioned to contact an exhaust gas passing through each channel. The catalyst composition includes a platinum (pt) component and a sulfur-containing component (s) impregnated in a refractory metal oxide support and is effective for reducing hydrocarbons and carbon monoxide as well as oxidizing to # 2 in the exhaust gas. Also provided are methods for making and using the catalyst article as well as emission treatment systems comprising the catalyst article.