Overview of beneficiation, utilization and environmental issues in relation to coal processing

Abstract

In this overview, a brief description of Indian coal characteristic is presented. Based on the current production and looking at the future demands, beneficiation of Indian coal is emphasized. Two relevant case studies dealing with coal beneficiation are discussed. These studies show that low grade coal with 10% ash could be achieved by detailed characterization and beneficiation. The relevant issues dealing with various technological options such as selective mining, fine coal processing, dewatering, dry beneficiation, blending, coal to coke conversion, etc., are discussed. Finally, some of the environmental issues affecting future technology scenario are highlighted.