Pour-point depression of crude oils by addition of tar sand bitu
Power recovery in gas concentration units
Power recovery system for coal liquefaction process
Pre-heat vaporization system
Pre-heat vaporization system
Precious metal and silica-alumina based catalyst and hydroisomer
Precipitation of asphaltene
Precombustion of halogen-containing compounds in catalyst...
Preheat control for a fractional distillation process
Preheating of distillation feed
Preheating of oil shale prior to pyrolysis
Premium coke from a blend of pyrolysis tar and hydrotreated deca
Premium coking process
Premium coking process
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Premium synthetic lubricant base stock having at least 95% non-c
Preparation and treating of bituminous compositions
Preparation and use of catalysts comprising a mixture of tungste
Preparation and use of reactive dispersions
Preparation of a catalyst from metal oxides by reduction and par