Gasoil is a product of Fluid catalytic cracking (FCC). It is one of the most important conversion processes used in petroleum refineries. It is widely used to convert the high-boiling, high-molecular weight hydrocarbon fractions of petroleum crude oils to more valuable gasoline, olefinic gases, and other products. Cracking of petroleum hydrocarbons was originally done by thermal cracking, which has been almost completely replaced by catalytic cracking because it produces more gasoline with a higher octane rating. It also produces byproduct gases that are more olefinic, and hence more valuable, than those produced by thermal cracking.
The feedstock to an FCC is usually that portion of the crude oil that has an initial boiling point of 340 °C or higher at atmospheric pressure and an average molecular weight ranging from about 200 to 600 or higher. This portion of crude oil is often referred to as heavy gas oil or vacuum gas oil (HVGO).
Straight-run vacuum gasoil
Wide hydrocarbon spread produced in process of black-oil vacuum distillation. It is used in production of base oil and paraffin wax, as feedstock for Pyrolysis, Hydrocracking and Catalytic Cracking Units.
Hydrotreated vacuum gasoil
Heavy ends of Hydrocracking or Vacuum Gasoil Hydroconversion Units with sulphur content less than 0,5%. It is the ideal feedstock for Catalytic Cracking and Pyrolysis Units.
MAIN TECHNICAL PARAMETERS
TU RB 300220696.004-2001
TU RB 300220696.023-2004 (hydrotreated)
Density at 20 °C, kg/m3,
Kinematic viscosity at 50 °C, mm2/sec
Sulphur content, w.% max
Pour point, °C,
Flash point in open crucible, °C, min.
Vanadium content, w.%,
Cocking behavior, w.%, max.