Effects on SOx and NOx Emissions by Co-Firing Straw and Pulverized Coal

摘要: The effect of co-firing straw and pulverized coal has been investigated in a 2.5 MWt pilot-scale burner 250 MWe utility boiler. In the trial was chopped fed separately to burner, whereas full-scale experiment preprocessed as pellets ground with mills. Straw fractions range 0−20% on thermal basis were used 0−100% experiment. Two low-sulfur coals one high-sulfur pilot scale, full scale. Results from both tests revealed that an increased fraction fuel blend resulted reduction NO SO2 emissions. lower emission partly due sulfur content retention ash, probably present solid alkali sulfates. emissions conversion fuel-bound nitrogen. Increasing stra...