An Australian sub-bituminous coal was effectively liquefied under high temperature short contact time conditions at about 30 kg/cm 2 using 1, 2, 3, 3a-tetrahydrofluoranthene (4HFL) as the solvent. The yields of the oil and asphaltene, the target products, were as high as 54 and 16%, respectively, for a reaction at 560° C with zero contact time. 4HFL was principally converted into fluoranthene together with some undefined four ring aromatic compounds. ...
