MODELING OF COAL-LIQUEFACTION WITH HINDERED DIFFUSION

A simple model taking into account most important aspects of catalyst properties and reaction was developed to interpret a maximal point in catalyst activity observed using unimodal catalysts in coal-tetralin reactions. The model was found to be highly applicable to the prediction of catalyst activity and the maximal point in catalyst activity could be explained in terms of the trade-off between the hindered diffusion and surface area.