Polar solvent extraction and dedusting process

Polarity gradient extraction method

Preheating of oil shale prior to pyrolysis

Premium synthetic lubricant base stock having at least 95% non-c

Preparation of synthetic hydrocarbon lubricants

Pretreatment of coal-derived liquid to improve magnetic separati

Pretreatment of oil-shale for enhanced arsenic removal

Process aid addition in hot water process based on feed fines co

Process and apparatus for catalytic hydrocarbon conversion

Process and apparatus for converting coal into oil and other coa

Process and apparatus for extracting bituminous oil from tar san

Process and apparatus for extracting hydrocarbons from oil shale

Process and apparatus for heating and deaerating raw bituminous

Process and apparatus for recovery of oil from tar sands

Process and apparatus for separating coarse sand particles and r

Process and apparatus for separating tar from a tar sand mixture

Process and apparatus to produce synthetic crude oil from tar sa

Process and catalyst for the hydrogenation of coal

Process and fluid media for treatment of tar sands to recover oi

Process configuration for producing high viscosity lubricating o