Thermal Dissolution of GZh Coal in Different Paste-Forming Agents

摘要

The thermal dissolution of grade 1GZh coal in different commercial paste-forming agents-coking tar, an anthracene fraction of coking tar, heavy semicoking tar, and petroleum gas oil-was studied. It was established that the presence of polycondensed molecules with a low degree of substitution of aromatic rings and compounds with hydrogen-donor and solvating activity in the solvent facilitated the efficient occurrence of the thermal dissolution of coal at a low temperature of 380 degrees C. The highest yields of soluble pitch-like product (78-85%) were obtained in the processes performed in the anthracene fraction of coking tar and coking tar.