| 萃取-絮凝法再生废润滑油的研究 |
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| 引用本文： | 杨莹,李慧,高维平.萃取-絮凝法再生废润滑油的研究[J].石油炼制与化工,2015,46(2):84-88. |
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| 作者姓名： | 杨莹 李慧 高维平 |
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| 作者单位： | 吉林化工学院石油化工学院 |
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| 摘 要： | 以环己烷-异丙醇混合溶剂为萃取剂、KOH溶液为絮凝剂，采用萃取-絮凝的方法回收废润滑油中的基础油馏分。经实验研究确定最佳工艺条件为：环己烷与异丙醇的质量比1:2，KOH质量分数15%，有机溶剂与KOH溶液的质量比7:1，剂油质量比2:1，精制温度45℃，精制时间30min。在此条件下对废润滑油进行精制，再生油的收率为83.4％，其颜色为澄清淡黄色，与废润滑油相比，再生油的性能指标有了很大的改善，基本达到HVI150润滑油基础油性能指标要求。
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| 关 键 词： | 环己烷-异丙醇 KOH溶液 再生油 废润滑油 |
| 收稿时间： | 2014-07-18 |
| 修稿时间： | 2014-09-27 |
REGENERATION OF WASTE LUBRICATING-OIL BY EXTRACTION-FLOCCULATION |
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| Yang Ying,Li Hui,Gao Weiping.REGENERATION OF WASTE LUBRICATING-OIL BY EXTRACTION-FLOCCULATION[J].Petroleum Processing and Petrochemicals,2015,46(2):84-88. |
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| Authors: | Yang Ying Li Hui Gao Weiping |
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| Affiliation: | Yang Ying;Li Hui;Gao Weiping;School of Petrochemical Technology,Jilin Institute of Chemical Technology; |
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| Abstract: | By extraction-flocculation combined process, the regeneration of spent lube oil was investigated using cyclohexane-isopropanol mixed solvent as extraction agent and KOH solution as flocculant. The base oil fractions in the feed were recovered at the optimal process conditions: cyclohexane to isopropanol ratio of 1:2, KOH solution concentration of 15%, KOH solution to organic solvents ratio of 7:1, solvent to oil ratio of 2:1, refining temperature of 45℃, refining time of 30 min, and the base oil yield is 83.4％. The regenerated lubricating oil is clear light yellow in color, the viscosities at 40℃ and 100℃ are 17.58 mm2/s and 4.11 mm2/s, respectively. The base oil has the viscosity index of 139, the acid value of 0.023 4 mgKOH/g, flash point of 234 ℃, and the solidifying point of -17 ℃. The performance index of the reclaimed oil is dramatically improved. |
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| Keywords: | cyclohexane-isopropanol KOH solution reclaimed oil waste lubricating oil |
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