- COAL WATER SLURRY COMPRISING SLUDGE CONTAING CALCIUM AND METHOD FOR PREPARING THE SAME

摘要

The present invention relates to a coal-water slurry comprising coal and water, said slurry comprising a calcium-containing sludge. According to the present invention, a calcium-containing sludge, which is a by-product generated in a steelmaking process, can be added during the production of a coal-water slurry to provide a coal-water slurry capable of lowering the viscosity of the coal-water slurry and increasing the concentration of coal. In addition, the efficiency of the wet coal gasifier and the combustor (reactor, internal combustion engine) using the coal-water slurry can be increased by increasing the heat generation amount.