New progress in the processing and efficient utilization of coal

Abstract

Coal accounts for about 70% of the primary energy sources in China. The environmental pollution and resources waste involved with coal processing and utilization are serious. It is therefore urgent to develop highly-efficient coal resources utilization theory and methods with low-carbon discharge. Based on our long-term basic research and technology development, the progress in beneficiation, cleaning, and transformation of coal, which includes dense phase fluidized bed dry beneficiation, deep screening of wet fine coal, micro-bubble flotation column separation, molecular coal chemistry, and transformation and separation of coal and its derivatives into value-added chemicals under mild conditions, is discussed.