Recovery of oil from a shale containing the same
Retorting with sintered or fused solids
Separation of fine solids from petroleum oils and the like
Separation of oil and precious metals from mined oil-bearing roc
Single-step coal liquefaction process
Single-step coal liquefaction process
Sludge liquefaction process and agents
Slurry-phase gasification of carbonaceous materials using ultras
Solvent extraction of organic oils and solvent recovery
Static mixer retorting of oil shale
Static mixer retorting of oil shale
Steam stripping process for solids separation in oil shale proce
Surfactant for bitumen separation
Syncrude dedusting extraction
Tilt lock means for a drafting table
Two-stage co-processing of coal/oil feedstocks
Two-stage pyrolysis of coal for producing liquid hydrocarbon fue
Use of ethers in thermal cracking
Use of methane, methane and hydrogen, or natural gas for pyrolys
Vibrating bed coal pyrolysis system