8. Effect of intermolecular coheision on coal liquefaction II : Reactivity of alkylated coals

Abstract

The non-covalent bonding in coal have been acknowledge as being of fundamental importance to overall physical properties of coal. To make sure that effect of non-covalent bonding on coal liquefaction, two kinds of alkylated coals were reacted, one is O-alkylation and the other is reductive alkylation. For coal liquefaction, liquid yield of alkylated coal decreased compaired with raw coal. However, TGA measuerments of THF insoluble fraction suggested that depolymerization reaction of reductive alkylated coal proceeded rather than that of raw coal.