Abstract
Unlike coal, for which solvent liquefaction dates back to the beginning of this century, treatment of oil shale using various solvents has received attention only in recent years as an alternative process to producing liquid fuels by retorting. Solvent extraction offers the promise of overcoming the relatively low yields of desirable products obtained and the high energy expenditures required in pyrolysis. The present study was undertaken to investigate the solubilization of a Moroccan oil shale at 300{degree}C and 3000 psig in toluene. In this case the extent of solubilization was measured in terms of tetrahydrofuran extractables at refluxing conditions. Analyses of the soluble material produced were obtained by gel permeation chromatography and proton NMR since these provide valuable information for mechanistic interpretations.
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