| abstract |
A lead-tolerant exhaust gas oxidation catalytic composite for oxidizing gas in the presence of SO2 comprising a refractory inorganic oxide support material having deposited thereon a noble metal component and having dispersed thereon a protective coating of titania. The refractory support material may be deposited with a noble metal and thereafter applied as a washcoat on a low surface area support matrix followed by a titanium washcoat superimposed thereover. Also, a method for treating exhaust gases containing lead components by contacting the exhaust gas with the catalytic composite is disclosed. |