Process for the reduction of nitrogen oxides in an effluent

Details Process for the reduction of nitrogen oxides in an effluent Process for the reduction of nitrogen oxides in an effluent

B - Operations, Transporting

01

D

23/353

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

Patent

CA 1311908

PROCESS FOR THE REDUCTION OF NITROGEN OXIDES IN AN EFFLUENT ABSTRACT A process for the reduction of nitrogen oxides from an effluent from the combustion of a carbonaceous fuel is presented. More particularly, this process comprises injecting into the effluent droplets of a mixture comprising ammonia and an enhancer selected from the group consisting of hexamethylenetetraamine, a lower carbon alcohol, sugar, furfural, furfural derivatives, a hydroxyl amino hydrocarbon, an amino acid, a protein-containing composition, mixtures of ortho-, meta-, and para-methyl phenols, guanidine, guanidine carbonate, biguanidine, guanylurea sulfate, melamine, dicyandiamide, calcium cyanamide, biuret, 1,1'-azobisformamide, methylol urea, methylol urea-urea condensation product, dimethylol urea, methyl urea, dimethyl urea, and mixtures thereof, under conditions effective to reduce the concentration of nitrogen oxides in the effluent.

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