石油裂解碳五分离工艺中溶剂萃取法异戊二烯脱硫技术研究  

Study on desulfurization of isoprene in the separation process of fracted C_(5) by solvent extraction

作　　者：张连中[1] 李正[2] 李江利[3] 程延华[2] 赵华宇 徐阳 ZHANG Lian-zhong;LI Zheng;LI Jiang-li;CHENG Yan-hua;ZHAOHua-yu;XU Yang(Department of Chemical and Pharmaceutical Engineering,Jilin Institute of Chemical Technology,Jilin 132000,China;Research Institute of Jilin Petrochemical Company,Ltd.,PetroChina,Jilin 132000,China;Jilin Petrochemical Co.Ltd.,PetroChina,Jilin 132000,China;Jilin University,Changchun 130000,China)

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132000 [2]中国石油吉林石化公司研究院,吉林吉林132000 [3]中国石油吉林石化公司,吉林吉林132000 [4]吉林大学,吉林长春130000

出　　处：《应用化工》2018年第S02期269-272,共4页Applied Chemical Industry

基　　金：吉林市科技创新发展计划项目(20141207)。

摘　　要：根据物质相似相容原理,对萃取剂进行了筛选和复配,并考察了工艺条件对萃取剂性能的影响。结果发现,以N,N-二甲基甲酰胺(DMF)、氢氧化钠、水组成的复合萃取剂,对异戊二烯含有的硫化物具有较好的脱除效果。在DMF∶NaOH∶H_(2)O=100∶1∶50(质量比)组成的复合萃取剂,剂油比(复合萃取剂与原料异戊二烯体积比)为2∶1,反应温度25℃,反应压力1 atm,搅拌速率120 r/min,萃取时间60 min,静止时间15 min,脱硫率达到94.2%,异戊二烯总硫含量达到2.8 mg/L。The extractant was screened and mixed according tOthe principle of material similarity and compatibility,and the influence of technological conditions on the performance of desulfurization was investigated.The results showed that the composite extractant composed of N-N-dimethylformamide(DMF),sodium hydroxide and water have better removal efficiency tOthe sulfides contained in isoprene.At DMF∶NaOH∶H_(2)O=100∶1∶50(mass ratio),the ratiOof solvent tOoil(volume ratiOof composite extractant tOraw material isoprene)is 2∶1,the reaction temperature is 25℃,the reaction pressure is 1 atm,the stirring rate is 120 r/min,the extraction time is 60 min,the rest time is 15 min,the desulfurization rate is 94.2%,and the total sulfur content of isoprene is 2.8 mg/L.

关 键 词：裂解碳五 N N-二甲基甲酰胺 复合萃取剂 异戊二烯 脱硫 

分 类 号：TQ426.94[化学工程]