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.
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- Luik, Hans (2009-06-08). "Alternative technologies for oil shale liquefaction and upgrading" (PDF). International Oil Shale Symposium. Tallinn, Estonia: Tallinn University of Technology. http://www.oilshalesymposium.com/fileadmin/user_upload/documents/LUIK_2.pdf. Retrieved 2009-06-09.