TWO-STAGE COAL LIQUEFACTION PROCESS WITH PETROLEUM- DERIVED COAL SOLVENTS

摘要

ABSTRACT OF THE DISCLOSUREAn improved coal liquefaction process is dis-closed wherein subdivided coal is substantially dissolvedin a petroleum-derived solvent in the presence of addedhydrogen in a non-catalytic dissolving stage at a temper-ature in the range 400° to 480°C, thereby forming amixture of dissolved coal, solvent and insoluble solids.The effluent mixture of solvent, dissolved coal andinsoluble solids from the dissolver is contacted with ahydrocracking catalyst under hydrocracking conditionsat a reduced temperature below 425°C, resulting in aproduct having a normally liquid portion which may be useddirectly as a low-sulfur, low-nitrogen fuel oil.