文献类型：期刊文献

英文题名：Esynthesis and interfacial properties of bio-based zwitterionic surfactants derived from different fatty acids in non-edible vegetable oils

作者：Gang, Hongze[1,2]; Zhang, Qiqi[1]; Wang, Wei[1]; Cai, Bangxin[1]; Liu, Jinfeng[1,2]; Yang, Shizhong[1,2]; Mu, Bozhong[1,2]

机构：[1] State Key Laboratory of Bioreactor Engineering, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Engineering Research Center MEOR-MOE, Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology, Shanghai, 200237, China

年份：2020

卷号：8

期号：4

起止页码：417

外文期刊名：Journal of Renewable Materials

收录：EI(收录号：20212810629275)

语种：英文

外文关键词：Vegetable oils - Surface active agents - Enhanced recovery - Saturated fatty acids - Biodegradability - Chemical modification - Linoleic acid - Palmitic acid - Wetting - Oil well flooding

摘要：Waste cooking oils and non-edible vegetable oils are abundant and renewable resources for bio-based materials which have showed great potential applications in many industries. In this study, five fatty acids commonly found in non-edible vegetable oils, including palmitic acid, stearic acid, linoleic acid, linolenic acid, ricinoleic acid, and their mixtures, were used to produce bio-based zwitterionic surfactants through a facile and high-yield chemical modification. These surfactants demonstrated excellent surface/interfacial properties with the minimumsurfacetensionsrangingfrom28.4mN/mto32.8mN/minaqueous solutions. The interfacial tensions between crude oil and surfactant solutions were remarkably reduced to lower values ranging from 0.0028 mN/m to 0.1983 mN/m without the aid of extra alkali, which particularly implied a great potential application in enhanced oil recovery. Meanwhile, these bio-based surfactants also showed good wetting properties (contact angles of ~ 51° comparing with that of double distilled water, 92.04°) and appropriate predicted biodegradability (degradation order of "weeks" for bio-based surfactants synthesized from satu-rated fatty acids, and "months" for those synthesized from unsaturated fatty acids). Bio-based surfactants synthesized from unsaturated fatty acids showed better interfacial properties in reducing interfacial tension between crude oil and formation water. The bio-based surfactants presented in this study are alternative substitutes for traditional petroleum-based surfactants in various surfactant application fields. ? 2020, Tech Science Press. All rights reserved.