Catalyst for purifying exhaust gas

Details Catalyst for purifying exhaust gas Catalyst for purifying exhaust gas

1992-08-07

1995-08-22

Lewis, Michael

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

4232392, B01D 5394

Patent

active

054438039

ABSTRACT:
A catalyst for purifying an exhaust gas comprising a zeolite catalyst ion exchanged with cobalt and at least one alkaline earth metal and a zeolite catalyst ion-exchanged with copper, provided on an inlet side of an exhaust gas stream and an outlet side of the exhaust gas respectively, or randomly present in a mixed state.

REFERENCES:
patent: 4052337 (1977-10-01), Nishikawa et al.
patent: 5051244 (1991-09-01), Dunne et al.
patent: 5270024 (1993-12-01), Kasahara et al.

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