FIELD: chemical industry; reactor having a circulating fluidized layer and a system of selective catalytic reduction.
SUBSTANCE: the offered invention is pertaining to the field of chemical industry. A combination of a device consisting of a reactor or a combustion chamber with a circulating fluidized layer and a selective catalytic reduction system contains the reactor chamber with a circulating fluidized layer, the primary solid particles separator, a means for return of the solid particles trapped by the primary solid particles separator to the reactor chamber, at least one surface of heat transfer of a vapor overheater or an intermediate vapor overheater, a system of the selective catalytic reduction, a dry scrubber located below on the production chain in respect to the system of the selective catalytic reduction and a means for introduction of ammonia in the flow of a smoke gas-solid particles. According to one of the offered versions the given device contains a multicyclone dust separator and a means for return of the solid particles trapped by the multicyclone dust separator to the reactor chamber. The given engineering solution ensures low outbursts of nitrogen oxides at the minimum operational cost.
EFFECT: the invention ensures low outbursts of nitrogen oxides at the minimum operational cost.
11 cl, 3 dwg, 2 tbl
