A. Gurses et al., SELECTIVE OIL AGGLOMERATION OF BROWN-COAL - A SYSTEMATIC INVESTIGATION OF THE DESIGN AND PROCESS VARIABLES IN THE CONDITIONING STEP, Fuel, 75(10), 1996, pp. 1175-1180
Oil agglomeration is an effective technique for recovering and deashin
g coal fines. Conditioning is the most important unit operation prior
to agglomeration or size enlargement. In this study, the effects of th
e design and process parameters in the conditioning step, which marked
ly influences the effectiveness of selective oil agglomeration, on the
recovery of agglomerate and the ash and pyritic sulfur content of the
agglomerates were investigated. It was found that the success of the
process in terms of both recovery and selectivity for a brown coal was
highly dependent on the conditioning parameters. In addition, an empi
rical equation which relates the recovery with all the conditioning pa
rameters was developed. The values calculated by this equation closely
matched the experimental values. Copyright (C) 1996 Elsevier Science
Ltd.