基于离子开关原理的减压馏分油乙醇胺脱酸工艺

依据离子开关原理，以乙醇胺的乙醇溶液为复合脱酸剂对减压馏分油进行脱酸. 实验结果表明，在剂油体积比4:15、反应温度60℃、反应时间50 min的条件下，减三线油一次脱酸率可达70%以上，回收的环烷酸酸值为157 mg KOH/g，脱酸后油品质量显著提高.

Deacidification of Vacuum Gas Oil by Using Ethanolamine Based on Principle of Ionic Switch

According to the principle of ionic switch, the deacidification process of vacuum gas oil was studied by using ethanolamine ethanol solution. The process conditions and reaction kinetics were obtained. It was showed that under the conditions of ratio of deacidification agent to oil at 4:15, reaction temperature 60℃ and reaction time 50 min, the deacidification rate of vacuum gas oil could reach more than 70%. After the deacidification, the treated oil quality was significantly increased, the acid value of naphthenic acid obtained from the treated oil was 157 mg KOH/g. The conditions of deacidification process were mild without emulsification phenomenon, waste water and residue, and the deacidification agent could be reused, which shows a good economy.