At Coastal Energy LLC, the mechanism of the re-refining process involves the removal of impurities in spent lubricant oil and bringing it back to the initial state which is base oil without additives. Degradation of the lubricant properties is a consequence of the additives being depleted, whereas base oil molecules stay in contact that can be recovered. Re-refining of used oil means conversion of used oil into high-quality base oils by using the acid-clay conventional process or the latest distillation/evaporation technique along with the final polishing stage of advanced adsorption technology or solvent extraction, and, in the case of group II – hydrotreating.
Coastal Energy LLC utilizes the latest re-refining technology to refine used lubricating oil which consists of the following processes:

Feed Preparation: These methods include the removal of dirt, sand-metal particles, and undissolved water that settled down at the bottom of tanks.
· Dehydration: Removes dissolved water and lighter hydrocarbons (combustibles).
· Ultra-high Vacuum Distillation: Recovers base oil content from residual waste.
· Advanced Bleaching Technology: Coastal Energy LLC utilized advanced adsorption technology in the bleaching process,
our evolutionary adsorbents give ultimate results to improve oil color and smell along with optimized operational cost.