The catalytic effect of deashed Taiheiyo coal loaded K or Ca was investigated from the hydrogenolysis reaction under hydrogen gas phase. Additional effect of red mud catalyst to the loaded coal was also studied. K and Ca are mainly fixed by the adsorption and ion exchange in the micropore structure and on the surface of coal. K and Ca were effective for the change of component distributions. However, they did not contribute to the increase of conversions. The multiple effect appeared with adding red mud to the loaded coal, the conversions and liquid yields increased significantly.
