Ford Global Technolgoies, LLC

Ford Motor Company Limited

Anthony David Logan

Clifford N Montreuil

Andrew Anthony Adamczyk, Jr

This invention is directed to a catalyst system for treating internal combustion engine exhaust gases, the system having enhanced hydrocarbon trapping efficiency which is particularly advantageous during cold start. The system comprises a hydrocarbon polymerization catalyst, a hydrocarbon trap located downstream of the hydrocarbon (HC) polymerization catalyst, advanced exhaust treatment catalyst. The hydrocarbon polymerization catalyst is capable of forming larger (HC) molecules from smaller HC molecules.

Polymerization catalyst enhanced hydrocarbon trapping process

This invention is directed to a method of treating automotive exhaust gas emissions or stationary source emissions. It comprises introducing an organic hydrocarbon compound or compounds containing nitro or nitroso functional groups into the emissions at a location adjacent the source of emission generation. Thereafter, the compound/emission mixture is exposed to a transition metal exchanged high silica ZSM5 zeolite catalyst. Subsequently, the effluent from the zeolite catalyst is exposed to an oxidation catalyst.

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Chandler, AZ, United States of America

Anthony David Logan