Column type furfural treatment used oil re-refining plant
Traditional column type vacuum distillation with furfural
Column type vacuum distillation is similar like the crude oil
distillation towers, oil is re-refined through atmospheric
distillation and vacuum distillation column. It is easy to
understand. Only thing is the inner structure of packaged
distillation column is slightly different from the crude oil
distillation column to suit the used lube oil with high content of
colloid, additives, organic acid. The distilled raw base oil will
be sent to rectification unit to have the oil rectified by furfural
extraction. The investment of this kind of process is generally
high, so it is suitable for larger scale oil re-refineries.
Advantages of column type used oil re-refining process.
- Suitable for high scale project higher than 100kt/a.
- The recycled base oil quality through furfural treatment is very
- Continuous operating with DCS automatic control.