温度压力在废油再生分子蒸馏中的影响研究

Research on the effect of temperature and pressure in molecular distillation in waste lubricating oil regeneration

通过单因素控制法进行分子蒸馏实验，利用油液检测设备得到不同温度压力下的再生油液部分理化指标。从色度8号的废油中得到色度4.5号的再生油液，根据方差分析和回归分析确定在210~240℃、30~90 Pa，再生油液运动粘度（y）和凝点（SP）与温度（T）、压力（P）的关系为 SP =-23.594＋0.0186T -0.0586T/ P 和 y =19.181＋0.0389T -0.029P -0.208T/ P。

Through the single factor control molecular distillation experiments,using oil testing equipment obtained regeneration oil some physical and chemical indicators under different temperature and pressure. Regeneration oil chroma No. 4. 5 from waste oil chroma No. 8 refining,the analysis of variance and regres-sion analysis to determine in the range of 210 ~ 240 ℃,30 ~ 90 Pa,regeneration oil kinematic viscosity （y）and freezing point（SP）for the relationship between temperature（T）,pressure（P）is SP = - 23. 594＋ 0. 018 6T - 0. 058 6T/ P and y = 19. 181 ＋ 0. 038 9T - 0. 029P - 0. 208T/ P.