Abstract
A reaction model of extractive coal liquefaction in which the coal particle maintains its integrity throughout the reaction is presented. The effects of solvent diffusion, liquid product diffusion, and chemical reaction are taken into consideration in the model. Experimental data based on the NenKen extractive coal liquefaction process have been employed to test the validity of the model. Fractional extraction and concentration profiles of the hydrogen donor solvent, convertible solid and liquid product in the coal particle have been numerically simulated based on the model, and the results are graphically presented.
