Process for the catalytic reduction of nitrogen oxides

Details Process for the catalytic reduction of nitrogen oxides Process for the catalytic reduction of nitrogen oxides

B - Operations, Transporting

01

D

B01D 53/86 (2006.01) B01D 53/36 (1990.01)

Patent

CA 2135195

2135195 9322047 PCTABS00027 The present invention relates to a process for the catalytic reduction of nitrogen oxides in a combustion effluent. The inventive process generally involves treating urea under conditions effective to form a urea hydrolysate; introducing the urea hydrolysate into the effluent (50), under conditions effective to form ammonia and produce an ammonia-containing effluent; and catalytically reducing the nitrogen oxides in the effluent by passing the ammonia-containing effluent through a catalysis zone (30) comprising a catalyst effective for the reduction of nitrogen oxides in the presence of ammonia.

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