First, the waste oil (ULO) is pre-treated by dehydration process to remove solids and free water, Then, the oil is distilled under vacuum to remove the remaining water and lighter ends (gas, and diesel).

After this step, the dehydrated oil and degassed oil enters vacuum process under high vacuum in specially designed VACUUM SYSTEM and treated in order to distill the BASE oil, High vacuum allows to recover more oil while reducing operating temperatures which means less thermal cracking of the oil. Typically, up to 65% to 80%of the BASE oil is distilled overhead and recovered.

The first 8 to 10% is lighter cuts ( diesel) which can be used to fire the burners for heating in the system and the remaining 15% is black, heavy slurry consisting of oil additives originally blended with the oil as well as metallic and carbon impurities. This slurry quickly solidifies at ambient temperature, and can subsequently be sold as a by-product for mixing in bitumen, Balance 10% to 12 % is loss of water and gases during dehydration and distillation process.

Then distilled oil undergoes post treatment for filteration with activated clay bleaching process to remove colour and free radicals. The oil is now ready as BASE oil with almost the same specifications of virgin base oil before it can be blended with an additive package to be used as lubricating oil for automobiles.

Standard plant sizes: 25 MTD TO 200 MTD.

Note:The above Process may differ or change, for improvement, as new technologies are constantly being adapted by our R&D team.