Cellulose was thermally decomposed in water at 200℃〜400℃, and the artificial coals obtained were hydrogenated over a presulfided Ni-Mo/Al_2O_3 catalyst at 350℃ in tetralin. The toluene-insoluble product containing the catalyst was further hydrocracked at 425℃ in tetralin. The distillable components were analyzed by a capillary GC-MS, and the distribution of the polycyclic compounds were compared each other.
