Modeling of the preparation of chemical ultraclean coal

The modeling of the preparation of chemical ultraclean coal has not been yet reported. A pore-leached model is developed to describe the performance of mass transfer and chemical reaction with coal particles based on experimental data. The model deals with various parameters related to the deashing process, and especially accounts for deashing rate enhancement due to the improvement of porous structure within coal particles by means of a special technique. The model results indicate that high deashing efficiency can be accomplished in a reactor, which is compatible with the experimental results.