Catalyst for reduction of nitrogen oxides and process for prepar

Details Catalyst for reduction of nitrogen oxides and process for prepar Catalyst for reduction of nitrogen oxides and process for prepar

1977-04-06

1978-08-01

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

B01D 5334

Patent

active

041043618

ABSTRACT:
Nitrogen oxides are removed from gaseous mixtures comprising the same by contacting with a catalyst comprising a base metal component carried on a natural or synthetic zeolite in the presence of ammonia. The alkali metal content of the zeolite is carefully controlled through ion exchange with an alkaline earth metal compound.

REFERENCES:
patent: 3346328 (1967-10-01), Sergeys et al.
patent: 3366579 (1968-01-01), Laurent et al.
patent: 3406123 (1968-10-01), Sensel et al.
patent: 3476508 (1969-11-01), Kearby et al.
patent: 3635663 (1972-01-01), Moscou
patent: 3895094 (1975-07-01), Carter
Ambs., W. J. et al. "Journal of Catalysis" vol. 14, 1969; pp. 118-125.

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