METHOD FOR BROWN COAL COKE PRODUCTION USING SINGLE-STAGE THERMAL REPROCESSING

摘要

The method for brown coal coke production is based on the fact that brown coal with carbon content in dry matter of 60 to 75% by weight, volatile matter 40 to 60% by weight and tar 17.5 to 30% by weight is by crushing and grinding modified to the grain-size of under 0.25 mm, moistened to the total water content ranging between 10 and 25% by weight; the homogenised mixture is placed in the retort, and after its compacting it is indirectly heated to the internal temperature of the retort between 950 to 1300°C and kept at this temperature for 2 hours or more. The product is subsequently removed from the retort after cooling to the surface temperature of 400°C.