Coal liquefaction process with controlled recycle of ethyl aceta

Coal liquefaction product deashing process

Coal liquefaction using vacuum distillation and an external resi

Coal liquefaction with a selenium catalyst

Coal liquification process

Coal-anthracene oil slurry liquefied with carbon monoxide and ba

Coking contaminated oil shale or tar sand oil on retorted solid

Coking of bituminous solids with hot solids recycle

Combination fluid bed dry distillation and coking process for oi

Combination hydroconversion, fluid coking and gasification

Combination thermal and solvent extraction oil recovery process

Combined coal liquefaction-gasification process

Combustion of pyrolyzed carbon containing solids in staged turbu

Combuston method of oil shale retorting

Composition and method for separating bituminous constituents fr

Composition of lubricating base oil with high...

Conditioning oil for bowling lanes

Continuous preparation of hydrocarbon oils from coal by hydrogen

Continuous process and apparatus for separating hydrocarbons fro

Control of process aid used in hot water process for extraction