CHANNELIZED SCR INLET FOR IMPROVED AMMONIA INJECTION AND EFFICIENT NITROGEN OXIDE CONTROL

摘要

PURPOSE: A channelized SCR(Selective Catalytic Reduction) inlet for improved ammonia injection and efficient nitrogen oxide control is provided to improve removal efficiency of SCR, to minimize ammonia consumption of SCR, and to improve the mixing of the upstream of the ammonia and flue gas of SCR. CONSTITUTION: A flue having improved flow characteristics for use with a selective catalytic reduction reactor, comprises a flue(100) having an inlet end for receiving a gas flow and an outlet end for discharging the gas flow into a selective catalytic reduction reactor; vanes(120) located within the flue upstream of the selective catalytic reduction reactor to divide the gas flow into two or more separate flow channels(110) each having an inlet and an outlet; and a unit for supplying ammonia into the gas flow within each flow channel. The flow channels terminate proximate to the selective catalytic reduction reactor.