Catalyst for and method of purifying exhaust gas

Details Catalyst for and method of purifying exhaust gas Catalyst for and method of purifying exhaust gas

1992-02-12

1995-04-18

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

4232135, 4232392, 4232453, 423247, 423212, B01D 5336

Patent

active

054076510

ABSTRACT:
A catalyst for and method of purifying an exhaust gas to thereby remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen rich exhaust gas containing same, comprising a zeolite having (i) manganese, (ii) cobalt and palladium, or (iii) cobalt and silver contained therein.

REFERENCES:
patent: 3779014 (1973-12-01), Nohira et al.
patent: 3839225 (1974-10-01), Acres
patent: 3839545 (1974-10-01), Schwab et al.
patent: 5041272 (1991-08-01), Tamura et al.
patent: 5149512 (1992-09-01), Li et al.
patent: 5260043 (1993-11-01), Li et al.
Patents Abstracts of Japan, vol. 14, No. 544, (C-784)(4487), Dec. 4, 1990, & JP-A-2 233 145, Shinichi Takeshima, "Catalyst for Purifying Exhaust Gas".

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