Catalyst for purifying exhaust gas from internal combustion engi

Details Catalyst for purifying exhaust gas from internal combustion engi Catalyst for purifying exhaust gas from internal combustion engi

1997-10-27

1999-10-19

Straub, Gary P.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502302, 502330, 502340, 502344, 502350, B01J 2354

Patent

active

059688700

ABSTRACT:
A catalyst being formed of a porous supporter supporting alkali metals, Ti and a noble metal, or further supporting at least one of rare earth metal and magnesium, being disposed in a flow passage of an internal combustion engine, and being used to purify NOx contained in the exhaust gas. The above catalyst has NOx resistance to exhaust gas burnt with a rich condition and with a lean condition and a high resistivity to poisoning by SOx.

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