正丁醇和油水体积比对馏分油微乳液体系的影响  

Effects of n-butanol and oil/water volume ratio on the phase behavior of microemulsion

作　　者：陈爽[1] 高盛嵩 康耀明 李增霞 田晓雯 王娩 CHEN Shuang;GAO Shengsong;KANG Yaoming;LI Zengxia;TIAN Xiaowen;WANG Mian(College of Chemistry and Chemical Engineering,China University of Petroleum,Qingdao 266580,Shandong,China;Golmud Refinery of Petrochina Qinghai Oilfield,Golmud 816000,Qinghai,China)

机构地区：[1]中国石油大学(华东)化学化工学院,山东青岛266580 [2]中国石油青海油田格尔木炼油厂,青海格尔木816000

出　　处：《精细化工》2022年第12期2474-2480,共7页Fine Chemicals

基　　金：国家自然科学基金面上项目(22078366);山东省自然科学基金(ZR2017MB015)。

摘　　要：以异构十三烷基聚氧乙烯醚-5(E1305)为表面活性剂,分别以柴油和350~395、395~450、450~500℃馏分油为油相,考察了正丁醇用量和油水体积比(简称油水比,下同)对不同油相的微乳液相行为的影响。结果表明,随正丁醇用量的增加,微乳液体系相态由WinsorⅠ型→WinsorⅢ型→WinsorⅡ型转变。油相馏程温度升高,体系的最佳增溶参数降低而最佳醇度升高。对于正丁醇及E1305含量较低体系,随着油水比的增大,相态发生由胶团溶液类→类WinsorⅡ型→WinsorⅣ型→WinsorⅠ型转变。对于正丁醇含量较低且E1305含量较高体系,随着油水比的增大,相态由胶团溶液直接转变为WinsorⅠ型微乳液。对于正丁醇含量较高体系,随着油水比的增大,相态均由WinsorⅡ型→WinsorⅢ型→WinsorⅠ型转变,发生相转变所需的油水比与表面活性剂含量和油相的馏程温度相关。The effects of n-butanol dosage and oil/water volume ratio(oil/water ratio) on the phase behavior of microemulsions, using diesel oil and distillate oil at 350~395, 395~450 and 450~500 ℃ as oil phase and isoctylpolyoxyethylene ether-5(E1305) as surfactant, were investigated. The results showed that the phase of microemulsion system changed from WinsorⅠ→WinsorⅢ→WinsorⅡ as n-butanol dosage increased.The optimum solubilizing parameter decreased while the optimum alcoholicity increased when the distillation temperature of oil phase increased. When the oil/water volume ratio increased, the phase of system with low content of both n-butanol and E1305 changed from micelle solution type→Winsor-likeⅡ→WinsorⅣ→WinsorⅠ, the phase of the system with lower n-butanol content but higher E1305 content changed directly from micelle solution to Winsor Ⅰ microemulsion, and that of system with higher n-butanol content changed from WinsorⅡ→WinsorⅢ→WinsorⅠ. The oil/water ratio required for phase transformation was related to the surfactant content and the distillation temperature of the oil phase.

关 键 词：表面活性剂 馏分油 微乳液 油水比 相行为 

分 类 号：O648.23[理学—物理化学]