Process for removing nitrogen oxides from gas by ammonia

Details Process for removing nitrogen oxides from gas by ammonia Process for removing nitrogen oxides from gas by ammonia

B - Operations, Transporting

01

D

23/353

B01D 53/34 (2006.01) B01D 53/56 (2006.01)

Patent

CA 1089195

PROCESS FOR REMOVING NITROGEN OXIDES FROM GAS BY AMMONIA ABSTRACT OF THE DISCLOSURE A hot gas containing nitrogen oxides is admixed with ammonia and hydrogen peroxide to reduce the nitrogen oxides to nitrogen and water. Reduction reaction of the nitrogen oxides by ammonia is conside- rably promoted in a temperature range of 400° to 800°C by the addition of hydrogen peroxide, and also ammonia present in excess of the nitrogen oxides is decomposed thereby, eliminating an unreacted ammonia effluent.

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