Prodn. of thermally treated, oil-impregnated, economic coal

摘要

Thermally treated coal with water content 10 % max. having oil-absorbent pore surfaces is produced by mixing porous coal and oil to obtain a slurry, which is heated to remove water from and introduce oil into the coal pores. The slurry is further heat treated then coal is separated by solid/fluid sepn. method. Appts. is also claimed and comprises a mixing tank, slurry pre-heater, vaporiser to transfer heat to the pre-heated slurry, thermal treatment heater and separator.