文献类型：期刊文献

中文题名：CO_2/水乳液体系的黏度测定

英文题名：Viscosity of CO_2/water emulsion

作者：张建[1];胡冬冬[1];包磊[1];赵玲[1];刘涛[1]

机构：[1]华东理工大学化工学院上海市多相结构材料化学工程重点实验室,上海200237

年份：2017

卷号：46

期号：8

起止页码：967

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金项目(21376087)

语种：中文

中文关键词：CO2/水乳液体系;黏度;表面活性剂;聚乙二醇三甲基壬基醚

外文关键词：carbon dioxide/water emulsion; viscosity; surfactant; poly（ethylene glycol） 2, 6, 8-trimethyl-4- nonyl ether

摘要：采用超临界CO_2、H_2O和表面活性剂聚乙二醇三甲基壬基醚(TMN-6)构建了水包CO_2的乳液体系,探索了CO_2/水乳液体系的形成条件,利用高压落球黏度计测试了CO_2/水乳液体系的黏度,考察了TMN-6质量浓度、体系温度、CO_2压力及m_(H_2O)∶m_(CO_2)对乳液体系黏度的影响。实验结果表明,在25~40℃,10~25 MPa,m_(CO_2)∶m_(H_2O)=(2∶8)^(5∶5),TMN-6质量浓度在0.2%~1.5%条件下,可形成稳定的CO_2/水乳液体系;乳液体系的黏度随TMN-6质量浓度的增加、CO_2压力的升高、温度的降低及m_(H_2O)∶m_(CO_2)的增加有不同程度的增大,且随着TMN-6质量浓度的增加,CO_2/水乳液体系黏度与温度和压力的相关性也逐渐增加。
CO2/water emulsion could be formed using supercritical CO2, H2O and surfactant poly （ethylene glycol） 2, 6, 8-trimethyl-4-nonyl ether（TMN-6）. The formation conditions for CO2/water emulsion were investigated. The viscosity of the CO2/water emulsion was measured using the high pressure falling ball viscometer. The effects of the surfactant concentration, temperature, CO2 pressure and mH2O ：mCO2 on the emulsion viscosity were studied. The results showed that the viscosity of the emulsion was much higher than that of CO2 or water. At 25-40 ℃, CO2 pressure of 10-25 MPa, mH2O ： mCO2 between （2 ： 8）- （5 ： 5）, and TMN-6 concentration（w） of 0.2%-1.5%, the viscosity of CO2/water emulsion increased with increasing the TMN-6 concentration, CO2 pressure and mH2O ： mCO2, and decreasing the temperature. In addition, it was showed that the dependence of the CO2/water emulsion viscosity on temperature and pressure were gradually enhanced with increasing surfactant concentration.