Co-firing of high-ash discard coal and refuse-derived fuel - ash and gaseous emissions

This research focuses on the co-firing of discard coal with refuse-derived fuel (RDF) to utilize this abundant resource in South Africa for energy generation and reduce volume waste disposed at landfills. The potential a high ash content (> 40%), which is grade used some power stations Africa, its combustion compatibility two different RDFs terms emission reductions has been established. Gaseous emissions residues from co-combustion coal, coal/RDF blends proportion were analysed. One RDF samples contained mostly paper (PB) other plastic (PL). Co-combustion showed decrease chloride alkali metal contents as ratio blend increased. slagging propensity co-fired was found be very low, while fouling decreased medium all < 75% RDF. SO2 387 ppm (discard coal) 50 sample containing 25% plus PL. A 15% PL 85% also reduced NOx 145 (100% PL) 88 ppm. lowest CO2 observed 6000 PB. It established that most favourable can produce sulphur if sample.