Iridium-nickel exhaust gas conversion catalyst and process

Details Iridium-nickel exhaust gas conversion catalyst and process Iridium-nickel exhaust gas conversion catalyst and process

1974-05-17

1976-12-21

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

B01D 5334

Patent

active

039989305

ABSTRACT:
Process and catalyst for the catalytic conversion of nitrogen oxides (NO.sub.x), unburned hydrocarbons and carbon monoxide in internal combustion engine exhaust gases. The catalyst comprises essentially a composite of nickel and a minor proportion of iridium. This composite catalyst is found to be exceptionally resistant to poisoning by sulfur and lead compounds present in the exhaust gases.

REFERENCES:
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patent: 2601221 (1952-06-01), Rosenblatt
patent: 3224831 (1965-12-01), Stephens
patent: 3331787 (1967-07-01), Keith et al.
patent: 3637344 (1971-01-01), Thompson
patent: 3816594 (1974-06-01), Kobylinksi et al.
patent: 3842159 (1974-10-01), Niebylski et al.
patent: 3886260 (1975-05-01), Unland

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