Thermal dissolution
Encyclopedia
Thermal dissolution is a hydrogen-donor solvent
refining process. It may be used for the shale oil extraction and coal liquefaction
. Other liquids extraction processes from solid fuels are pyrolysis
and hydrogenation
.
Solvent
A solvent is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute, resulting in a solution that is soluble in a certain volume of solvent at a specified temperature...
refining process. It may be used for the shale oil extraction and coal liquefaction
Coal liquefaction
-Methods:The liquefaction processes are classified as direct conversion to liquids processes and indirect conversion to liquids processeses. Direct processes are carbonization and hydrogenation.-Pyrolysis and carbonization processes:...
. Other liquids extraction processes from solid fuels are pyrolysis
Pyrolysis
Pyrolysis is a thermochemical decomposition of organic material at elevated temperatures without the participation of oxygen. It involves the simultaneous change of chemical composition and physical phase, and is irreversible...
and hydrogenation
Hydrogenation
Hydrogenation, to treat with hydrogen, also a form of chemical reduction, is a chemical reaction between molecular hydrogen and another compound or element, usually in the presence of a catalyst. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically...
.