Coal maceral chemistry. 1. Liquefaction behavior

Three groups of macerals, namely liptinite, vitrinite, and inertinite, were separated from a West Virginia high-volatile bituminous coal (APCS 7 from the Argonne Premium Coal Sample Bank) by continuous flow density gradient technique and their pyrolysis and liquefaction behavior studied. The pyrolysis and liquefaction yields decreased in the order: liptinite>vitrinite>inertinite. There was no discernible interaction among the macerals during pyrolysis or liquefaction