이중 순환식 유동층 연소로내에서 2차 공기 주입에 의한 CO, NOx 저감효과

Effect of Secondary Air Injection on CO and NOx Emission in an Internally Circulating Fluidized Bed Combustor

Combustion experiments are carried out to obtain the fundamental data for application of a internally circulating fluidized bed combustor to the combustion of paper sludge wastes. Experimental parameters are identified as secondary air ratio, sludge weight and water contents. The secondary air ratio was varied from 0 to 20% and water content was 14%, 25%, 35%, 45%, 62% and sludge weight was 30g, 60g, 90g. As a result, carbon conversion ratio was higher than injection of primary air. Emission of CO and NOx reduced with an increase of secondary air injection.