Extraction of Aromatic Hydrocarbons from Lube Oil Using n-Hexane as an Anti - solvent

Liquid-liquid extraction is the most common method for extraction of aromatics from lube oil .Aromatic content of vacuum distillate by solvent extraction , frequntly with furfural with furfural . The solvent power and selectivity of furfural can be further increased by using n - Hexane as anti - solvent (n- Hexane contents of 11% were found to be optimum for this process) . The aromatics in lube oil were extracted at different temperatures ( ranging from 323.15 to 343.15k) and different anti-solvent to feed ratios(ranging from 0.0 to 0.5 volume ratio). The amount of n-Hexane as anti-solvent in furfural and extraction temperature was investigated systematically in order to determine their optimum valuse. The amount of Aromatic , Paraffinic and Naphthenic compounds was determined using ASTM standards by measuring RI, viscosity and sulfur content.

کلیدواژه ها:

solvent extraction ، anti - solvent ، Aromatic hydrocarbon ، lubricating oil