Role of Thermal Chemical Processes in Supercritical Gas Extraction of Coal.

摘要

The primary objectives of this study on supercritical gas extraction of coal are: (1) to differentiate the extractive and pyrolytic components of this process; (2) to explore flow mode concepts as a mean of inhibiting secondary reactions by rapidly removing products from the reaction zone; (3) to compare the effectiveness of subcritical and supercritical solvents in the extraction of coal. Progress toward the first two objectives has been achieved through two parallel series of experiments, vacuum pyrolysis of coal and coal extraction with methanol. Experimental procedures and results obtained are discussed. 2 figures, 2 tables. (ERA citation 08:039933)