Extraction of fossil Fuels with Sub-and Supercritical Water

摘要

Oil shales, liptobioliths, and hard coals were subjected to sub-and supercritical water extraction in an autoclave. Thermosolvolytical potential of water on the yield and composition of conversion products at 573-673 K was investigated. The effects of the exchanging of a part of water by the same amount of some low-boiling hydrocarbon or CO_2 and of the addition of chemically active reagents to the extrac- tion were also investigated.