Desulphurization treatment

Determination of aromatics in hydrocarbons by near infrared spec

Dewatering of petroleum-containing sludges with recovery of the

Diesel fuel reforming strategy

Diesel oil desulfurization by oxidation and extraction

Diluent distillation process and apparatus

Diluent substitution process

Dilution centrifuging of bitumen froth from the hot water proces

Dinitrogenation of mineral oil utilizing a fluorine-promoted, al

Disposition of a high nitrogen content oil stream

Distillate oil moisture dehazing process

Distillation and solvent extraction process for rerefining used

Distillation apparatus and method of use

Downflow process for hydrotreating naphtha

Dynamic mixer process with continuous caustic phase for removal