文献类型：期刊文献

英文题名：Synthesis of a novel borate ester Anion-Nonionic surfactant and its application in viscosity reduction and emulsification of heavy crude oil

作者：Si, Yingwei[1];Zhu, Yangwen[2];Liu, Tao[3];Xu, Xinru[1];Yang, Jingyi[1]

机构：[1]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Meilong Rd 130, Shanghai 200237, Peoples R China;[2]SINOPEC, Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：333

外文期刊名：FUEL

收录：;EI(收录号：20224613102996);WOS:【SCI-EXPANDED(收录号:WOS:000933524500001)】；

基金：Acknowledgments The authors are grateful to the National Natural Science Foundation of China (22178098) .

语种：英文

外文关键词：Anionic -nonionic surfactant; Heavy oil; Emulsification; Viscosity reduction

摘要：In this study, emulsification viscosity reduction research was carried out on Xinjiang heavy oil. A new boroncontaining anionic-nonionic surfactant (SYW) was synthesized by the esterification-sulfonation reaction using 1,3 propylene glycol polyether (PPG), boric acid, maleic anhydride (MA), and sodium metabisulfite as raw materials. The resulting SYW was analyzed and characterized by elemental analysis, GPC, FT-IR, 1H NMR, and XPS. Based on the experimental results, SYW showed a viscosity reduction rate of 97.3 %. The surfactant SYG was obtained by compounding SYW with oleic acid and ethanolamine at a 3:1:1 ratio, which further improved the viscosity reduction rate to 98.6 %. Both SYW and SYG significantly reduce the interfacial tension. Under the experimental conditions, SYG can reduce the interfacial tension value from 25.6mN/m to 0.07mN/m, and increase the negative charge Zeta potential on the surface of oil droplets. The dispersive phase of the emulsion containing SYG changed from water droplets to oil droplets with a particle size of 3.68 mu m and a more uniform distribution. The mechanism of viscosity reduction of SYW was revealed. SYW in water phase and asphaltene molecules in oil phase formed water Bridges through hydrogen bonding with water to realize the emulsification process.