环丁砜溶剂精制再生废润滑油的研究

摘要

Sulfolance was used as solvent to regenerate waste lubricating oil. The influence of refining tem-perature,refining time and solvent to oil volume ratio of waste oil refining effect was investigated. The re-sult showed that the optimal condition of sulfolance refining:the solvent to oil volume ratio of 1. 4,the re-fine temperature of 120 ℃,the refine time of 30 min. Under this process condition,the yield of the recov-ered oil was 85. 89% ,the viscosity index was 103. 62. Meanwhile,in the time of 30 min constant refining, studied refining temperature,solvent to oil volume ratio on recycled oil viscosity index and linear regres-sion using SPSS software,derived regenerative refined oil viscosity index and refining temperature,solvent to oil volume ratio the regression equation.%以环丁砜为溶剂进行再生废润滑油的研究。考察了精制温度、精制时间及剂油体积比对废润滑油精制效果的影响。结果表明，环丁砜精制的最佳工艺条件为：剂油体积比为1.4，精制温度120℃，精制时间为30 min。在该工艺条件下，再生精制油收率达到85.89%，再生油的黏度指数达103.62。同时，在精制时间为30 min 恒定时，研究了精制温度、剂油体积比对再生油黏度指数的影响，并采用 SPSS 软件进行线性回归，得出了再生油黏度指数与精制温度、剂油体积比的回归方程。