阴-非表面活性剂参与形成的超临界二氧化碳微乳液体系相行为

发布时间：2018-04-10 19:57

本文选题：超临界二氧化碳 + 表面活性剂　；参考：《科学技术与工程》2016年34期

【摘要】：利用超临界二氧化碳相行为评价装置,研究了超临界二氧化碳/水/表面活性剂/乙醇微乳液体系的相行为,考察了表面活性剂的结构、表面活性剂的含量、水的含量、体系的温度和表面活性剂的复配对微乳液体系浊点压力和密度的影响。结果表明:微乳液体系的浊点压力分别随着水含量的增加,表面活性剂含量的增加和温度的升高而增加;体系的浊点压力越高,密度越大。不同结构的表面活性剂中,AES-2和AEC-3的浊点压力最低分别能达到13.8和13.1 MPa,要高于AOT的10.8MPa。但将表面活性剂AEC-3和AOT按质量比1∶1复配时体系的浊点压力最低可达到8.6 MPa,密度为0.58 g·cm-3。研究可为超临界二氧化碳微乳液在提高稠油采收率方面的应用提供基础数据。
[Abstract]:The phase behavior of supercritical carbon dioxide / water / surfactant / ethanol microemulsion system was studied by using a supercritical carbon dioxide phase evaluation apparatus. The structure of surfactant, the content of surfactant and the content of water were investigated.The influence of temperature and surfactant on the cloud point pressure and density of microemulsion system.The results show that the cloud point pressure of the microemulsion system increases with the increase of water content, surfactant content and temperature, and the higher the cloud point pressure, the greater the density.The lowest cloud point pressures of AES-2 and AEC-3 are 13.8 and 13.1 MPa respectively, which are higher than that of AOT (10.8 MPA).However, when the surfactant AEC-3 and AOT are mixed at 1:1, the cloud point pressure of the system can reach 8.6 MPA, and the density is 0.58 g / cm ~ (-3).The study can provide basic data for the application of supercritical carbon dioxide microemulsion in enhancing heavy oil recovery.
【作者单位】：中国石油大学(华东)石油工程学院;科尔加里国际油气技术有限公司;
【基金】：国家自然科学基金项目(51204197) 中国石油大学(华东)自主创新科研计划项目(15CX06033A)资助
【分类号】：TE357.45

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