19. Development of liquefaction process of coal and biomass in supercritical water

Abstract

Mixture of coal and cellulose was liquefied in supercritical water (390℃, 25MPa), and yields of residue, liquid and gas were compared with the result of separate liquefaction of coal and cellulose. Co-liquefaction did not change the residue yield, but lead to production of compounds with lower molecular weight, thus to a larger gas yield. Liquefaction was completed in 15 minutes.