Selective removal of nitrogen oxides from waste gas

Details Selective removal of nitrogen oxides from waste gas Selective removal of nitrogen oxides from waste gas

1975-06-09

1976-11-23

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

B01D 5334

Patent

active

039937313

ABSTRACT:
A process for the removal of nitrogen oxides from a waste gas containing said oxides in conjunction with sulfur oxides which comprises contacting said waste gas with ammonia as a reducing agent at temperatures of from 250.degree. to 550.degree. C in the presence of a catalyst wherein an active component containing iron or copper as the active metal and a sulfate of aluminum are supported on a silica carrier.

REFERENCES:
patent: 3860690 (1975-01-01), Gidaspow
patent: 3864451 (1975-02-01), Lee et al.
patent: 3914390 (1975-10-01), Kudo et al.

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