生产润滑油基础油溶剂精制工艺条件研究.docVIP

生产润滑油基础油溶剂精制工艺条件研究 　　摘要:当今原油价格居高不下,炼好每吨油使工业生产效益最大化,是各石化企业的艰巨任务。文章旨在利用实验室润滑油溶剂精制评价方法,通过溶剂精制和白土补充精制对西江和尼尔(混合比为1∶1)减三线、减四线脱蜡油生产HVI基础油进行实验室的最优条件评选,为工业生产和改造提供必要的基础数据。本研究采用间歇模拟法[1]作为润滑油溶剂精制方法,选用油品族组成、油品理化性能等质量数据确定糠醛精制装置理论级数为三级;实验数据也表明用三级逆流萃取实验可以模拟生产中的糠醛精制过程。 　　关键词:润滑油;基础油;糠醛精制;白土精制;分液漏斗间歇模拟法 　　中图分类号:TE624.512 文献标识码:A 　　 　　Study on the Solvent Refining Technique to Produce HVI Lubricating Base Oil 　　LI Shao-ping1, CHEN Shu-qun1, DAI Qing-xin1, ZHAO Liang2, CHEN Ying2 　　(1.Petroleum Processing Research Center, East China University of Science and Technology, Shanghai 200237, China; 2.SINOPEC Shanghai Gaoqiao Petrochemical Corporation, Shanghai 200137, China) 　　Abstract:Enhancing the production efficiency by optimizing the processes being used for lubricant base oil is currently one of the major challenges which refineries are facing with due to today′s high crude oil prices. A laboratory evaluation method was established for the lube solvent refining. No.3 and No.4 fraction dewaxed oils produced from Xijiang and Daniel mixed oil at the ratio of 1∶1 were processed by solvent refining and clay finishing to produced HVI lube base oil. The data obtained in the processes are necessary for industrial production and transformation. The intermittent simulation method was used as lubricating solvent refining method. The group composition and other physicochemical properties were employed to determine the theoretical level. It has been obtained that the theoretical level in furfural refining unit is three. Experimental data showed that three counter-current extraction experiments can simulate the furfural refining process in the industrial production. 　　Key words:lubricating oil; base oil; furfural refining; clay refining; separating funnel intermittent simulation method 　　 　　0 前言 　　 　　润滑油基础油是四大石油产品之一,基础油品质关系到石化企业整体实力和经济效益,开展生产润滑油基础油的工艺及相关技术研究是及其重要的[2]。石油大学谭均权对胜利原油350～510 ℃馏分每40 ℃切割一种馏分进行糠醛精制,考察了实验室条件下不同温度、不同醛油比条件下精制对提余油质量和收率的影响。采用醛油比为3,抽提温度在70～95 ℃,可使精制馏分油粘度指数提高10～27个单