The Effect of Hydrogen-donor Solvent on the Liquefaction of Coal.

Abstract

Fundamental reactions in the solvent extraction of coal can be classified into the thermal decomposition of coal and the subsequent hydrogenation of formed fragments by hydrogen-donor solvent. The following items were reviewed from the theoretical point of view.
1. Elemental reactions of coal liquefaction in the presence of hydrogen-donor solvent.
2. Solvent effect on the homolytic decomposition reaction.
3. Role of hydrogen-donor solvent in coal liquefaction.
4. Effect of molecular hydrogen on coal liquefaction.
5. Acceralation effect of phenolic compounds on coal liquefaction.