Crude distillation unit (CDU) and vacuum distillation unit (VDU) are typical and important refine process. The CDU is capable of boiling the light hydrocarbons with boiling point below 350°C in crude oil, and then more light hydrocarbons can vaporized from the remaining heavier oils in VDU under vacuum operating pressure.


Encryo together with licensor could provide the engineering solutions on Petroleum Refining Process as below,

  • Crude distillation unit (CDU)

  • Vacuum distillation unit (VDU)

  • Catalytic cracking unit

  • Catalytic reforming unit

  • Hydrocracking unit

  • Alkylation