LOW TEMPERATURE NITROGEN OXIDE REMOVING METHOD CAPABLE OF REDUCING SELECTIVE NON-CATALYTIC REDUCTION THE DRIVING TEMPERATURE BY ADDING AN ADDICTIVE TO DISCHARGE GAS

摘要

PURPOSE: A low temperature nitrogen oxide removing method is provided to remove the nitrogen oxide of combustion facility by injecting an addictive at the temperature less than 700°C.;CONSTITUTION: A by-product gas is generated in a steel manufacture process. The by-product gas is mixed in the waste gas. A COG(Coke Oven Gas) and a FOG(FINEX Off Gas) are used as the by-product gas. A reducing agent is mixed in the acquired gas. A nitrogen oxide is removed through gas. A nitrogen monoxide is removed. When the by-product gas contains hydrogen, the start temperature of SNCR descends.;COPYRIGHT KIPO 2011