Hydrocracking

UREA

About

Hydrocracking (HC) is one of the most efficient secondary refining processes. The process is flexible and makes it possible to obtain a wide range of high-quality petroleum products from virtually any petroleum feedstock.

Process features

High temperatures (up to +425C)
High pressures (up to 17 MPa)
It is a very flexible process. Hydrocracking is characterized by a wide variety of technologies:
1. On the feedstock: Hydrocracking of gasoline fractions; Selective hydrocracking of gasoline, jet and diesel fuels; Hydrodearomatization of straight-run kerosene fractions and catalytic cracking gas oils; Light hydrocracking of vacuum gas oils; Hydrocracking of vacuum distillates; Hydrocracking of oil residues
2. According to the pressure of the process: High pressure hydrocracking; “Soft” hydrocracking
3. By conducting of process in reactor: In stationary catalyst bed; In three-phase fluidized bed with periodic replacement of catalyst portions
4. According to technological schemes: One-stage; One-stage with residue recirculation; Two-stage

Technology Providers

  • Axens: IFP Hydrocracking (high conversion hydrocracking with fixed catalyst bed), H-Oil (fluidized bed hydrocracking of residual feedstock)
  • Chevron Lummus: ISOCRACKING (hydrocracking with high conversion), LC-Fining (hydrocracking of residual feedstock in fluidized bed)
  • ExxonMobil: SCANfining, OCTGAIN, ULSD-fining, LCO-fining, RESIDfining
  • KBR: MAK Hydrocracking (MAK Hydrocracking with Feedstock Pre-treatment from Catalytic Cracking Unit), Veba Combi Cracking (Hydrogenation of oil residues)
  • UOP: Unicracking (Hydrocracking with high VGO conversion)

Main Challenge

  • High pressure
  • High temperature
  • Corrosive Medium