Improved hydroseparation process for aqueous extraction of bitum
Indirect heating pyrolysis of oil shale
Integrated coal conversion process
Integrated coal conversion process
Integrated coal liquefaction-gasification process
Integrated coal liquefication process
Integrated process for the solvent refining of coal
Integrated two-stage coal liquefaction process
Integration of molecular redistribution and...
Iron catalyzed coal liquefaction process
Iron-containing refractory balls for retorting oil shale