Key words: liptobiolith coal, supercritical water, liquefaction, desulfurization, kinetics and mechanisms of reactions
Liquefaction of liptobiolith coal in steam and supercritical water (SCW) flow at constant increase of temperature from 300 up to 470 °C is studied. Temperature dependencies of the yield of liquid and volatile products and apparent kinetic parameters of the process are obtained. The yields of oil, resin, asphaltene and volatile products are estimated as 23.2, 16.1, 5.1 and 14.1% of the coal organic matter (COM), respectively. Participation of water molecules in thermochemical transformations of COM resulted in the 13.2% wt. increase of oxygen amount in the conversion products and residue.