摘要
将乙醇胺和N-甲基吡咯烷酮(NMP)配成双溶剂,采用NMP精制和双溶剂精制两种方法对工业废润滑油进行研究。结果表明,双溶剂精制的适宜工艺条件是精制温度为70℃,乙醇胺加入的体积分数为5%。在适宜条件下,双溶剂Ⅱ(V(乙醇胺)∶V(NMP)=5∶95)精制油品收率为89.85%,40℃下粘度为30.89 mm2.s-1,100℃下粘度为5.60 mm2.s-1,粘度指数为120.4,25℃下折光率为1.450,色度为2.0,凝点为-28.8℃,闪点为219.6℃,硫质量分数为0.057%。
The refining of industrial waste lubricating oil was investigated with N-methyl-2-pyrrolidone（NMP） and Duo-solvent（ethanolamine and NMP） as solvents,respectively.The preferred refining process is duo-solvent refining under 70 ℃ with 5% ethanolamine,under these conditions the total oil yield was 89.85%.The physical properties of recycled oil is listed as follows： viscosity（40 ℃） 30.89 mm2·s-1,viscosity（100 ℃） 5.6 mm2·s-1,viscosity index 120.4,refractive index 1.450,Color 2.0,freezing point-28.8 ℃,flash point 219.6 ℃ and sulfur content 0.057%.
出处
《辽宁石油化工大学学报》
CAS
2010年第4期11-14,共4页
Journal of Liaoning Petrochemical University
关键词
废润滑油
双溶剂精制
NMP精制
Waste lubricating oil
Duo-solvent refining
NMP refining
