Co-combustion of unburned carbon separated from lignite fly ash

This paper is focused on developing methods of characterization and the technical possibility of co-combustion of unburned carbon separated from lignite. For this aim, sieving technique was developed and a demonstration plant was installed on a 370 MW unit, located at Bełchatów Power Station. Three different size fractions of unburned carbon particles separated from fly ash (B08, B10 and B15), raw lignite (WB) and their blends were analysed.