Exhaust gas purifying catalyst

Details Exhaust gas purifying catalyst Exhaust gas purifying catalyst

2005-10-11

2005-10-11

Nguyen, Cam N. (Department: 1754)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S303000, C502S304000, C502S325000, C502S326000, C502S327000, C502S328000, C502S330000, C502S332000, C502S333000, C502S334000, C502S339000, C502S415000, C502S439000, C502S527120, C502S065000, C502S066000, C502S073000, C502S074000

Reexamination Certificate

active

06953769

ABSTRACT:
A catalyst comprises an HC trapping material that is capable of trapping HC in an exhaust gas under low temperatures and releasing HC with a raise in temperature and catalytic material containing a Ce—Pr double oxide capable of oxidizing and purifying HC from the HC trapping material with a high efficiency.

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