Study on the Applicability of the Regenerated Spent Catalyst in the Re-refining of Waste Lube Oil

Solid catalysts are widely used in many processes in the petroleum refining industry. Catalysts facilitate difficult hydrocarbon transformations with high selectivity and permit the refiners to produce the full range of clean transportation fuels with des16 %), different oxidizing agents (H2O2 and Fe(NO3)3) and different modes of addition of oxidizing agents (batch and continuous). The results indicated that 4% oxalic acid + 5 % Fe(NO3)3 at continuous addition of oxidizing agents was the most efficient leWith increased time of usage, lubricating oil loses its lubricating properties and thus must be evacuated and a fresh one replaced. Waste lube oil contain heavy metals coming from undergirded base oil and additives, these metals have carcinogenic effect a