No.28 Influence assessment on cleaning coal efficiency of oil agglomeration varied with oxygen content in coal

Abstract

Present, the oil agglomeration has attracted attention in the way of making efficient use of waste fine coal from the coal cleaning. In this study, we analyzed efficiency of coal cleaning based on oil agglomeration with three coals varied oxygen contents and as the aggregating agents, kerosene and vegetable oil were used. In order to investigate the precise effect of coals themself and polar functional groups, the ash contents in sample coals were digested by HCl and HF solutions. As the results, in cases where we changed the combination of coals and oils, the recoveries of coals were changeable.