Catalyst for purifying exhaust gas

Details Catalyst for purifying exhaust gas Catalyst for purifying exhaust gas

1991-12-12

1993-04-27

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And group iii or rare earth metal or lanthanide containing

502 65, B01J 2910

Patent

active

052061965

ABSTRACT:
A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing nitrogen oxides, carbon monoxide and hydrocarbons comprising (i) a zeolite having an SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of at least 15 and (ii) (a) cobalt, (b) a rare earth metal and (c) silver, or nickel and/or zinc, or platinum and/or manganese, or copper and/or rhodium, incorporated thereinto.

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