油水分离膜在废润滑油再生工艺中的可行性应用  

Feasible application of oil-water separation membrane in regeneration of spent lubricating oil

作　　者：牛罗伟 尹延梅 戴海平[1] 柯永文 NIU Luo-wei;YIN Yan-mei;DAI Hai-ping;KE Yong-wen(State Key Laboratory of Separation Membrane and Membrane Processes/National Center for International Joint Research on Separation Membranes Science and Technology,Tiangong University,Tianjin 300387,China;Tianjin Shuizhiyuan Environmental Materials Co.,Ltd.,Tianjin 300387,China)

机构地区：[1]天津工业大学,分离膜与膜过程国家重点实验室/分离膜科学与技术国家国际联合研究中心,天津300387 [2]天津水之缘环境材料有限公司,天津300387

出　　处：《现代化工》2020年第5期133-136,142,共5页Modern Chemical Industry

基　　金：天津市科技计划项目(17PTSYJC00050、18PTSYJC00190)。

摘　　要：采用油水分离膜处理废润滑油,考察其在不同温度和压力时对不同黏度的润滑油的过滤通量和处理效果;测试膜过滤前后润滑油的主要性能指标;最后分析了膜污染影响因素和膜清洗方法。结果表明,随着过滤温度与压力的增大,过滤膜通量提高。油水分离膜工艺处理废润滑油后,过滤油的含水率降为70 mg/kg,油泥氧化指数降为0,过滤油清洁度等级降为ISO17/15/≥10级,水分、油泥与机械磨损颗粒减少,该工艺能有效处理废润滑油中的水分与油泥。通过物理反洗有效地减缓了膜污染,增加了分离膜的使用寿命。Oil-water separation membrane is used to treat with spent lubricating oil,and the filtration flux and treatment effect on spent lubricating oil with different viscosities are investigated at different temperatures and pressures.The main performance indexes of lubricating oil before and after membrane filtration are tested,and the factors affecting membrane fouling and the membrane cleaning method are analyzed.It is indicated that the filtration flux increases with the increase of filtration temperature and pressure.After spent lubricating oil is treated by oil-water separation membrane process,the moisture content of the filtered oil drops to 70 mg·kg-1,the sludge oxidation index of that declines to 0,and the filter oil cleanliness decreases to ISO 17/15/≥10.Moisture,sludge and mechanical wear particles are reduced,representing that this process can effectively treat with moisture and sludge in spent lubricating oil.Through physically backwashing,membrane fouling can effectively be slowed down and the service life of the separation membrane is prolonged.

关 键 词：油水分离膜 废润滑油 清洁度 过滤 再生 

分 类 号：X74[环境科学与工程—环境工程]