十七烷基二甲苯磺酸盐吸附性能  

Heptadecyl xylene sulfonate's adsorption properties

作　　者：孙颖[1] 丁伟[1] 吕崇福[1] 于涛[1] 曲广淼[1] 

机构地区：[1]大庆石油学院化学化工学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2010年第1期72-75,共4页Journal of Daqing Petroleum Institute

基　　金：国家"973"重点基础研究规划项目(2005CB221300)

摘　　要：为研究三元复合驱体系中表面活性剂在油砂表面的吸附滞留问题,利用两相滴定法测定了自制的4种结构十七烷基二甲苯磺酸盐表面活性剂在大庆油砂上的吸附性能,并分析了各因素对吸附性能的影响.结果表明:在温度为45℃,液固比为10∶1(液相与固相质量的比值),吸附时间为24h的条件下,十七烷基二甲苯磺酸盐在油砂上可达到吸附平衡;温度、电解质、碱和醇的加入以及磺酸盐的结构与质量浓度都影响其吸附性能.随着芳环向长链烷基中间移动,饱和吸附量下降;当磺酸盐质量浓度为0.4g/L时,达到饱和吸附量;随温度升高,磺酸盐在油砂上的饱和吸附量下降;加入适当的电解质能够提高磺酸盐的饱和吸附量;碱的加入可增加吸附量,而醇的加入则降低吸附量.To study the problem of the surfactant adsorbing on the oil sands surface in ASP system,the adsorption on Daqing oil sands properties of heptadecyl xylene sulfonate synthesized by our laboratory were measured by using two-phase titration and research and the impact on the adsorption properties.The results show that under the conditions of 45 ℃,liquid-solid ratio 10∶1,absorption 24 hours,heptadecyl xylene sulfonate based at oil sands can be reached on adsorption equilibrium;temperature,electrolyte,alkali,alcohol as well as the structure and concentration of the sulfonate affect the surfactant static equilibrium adsorption capacity.With the aromatic ring moving to the middle of long-alkyl chain,the adsorption capacity declines when sulfonate concentration is 0.4 g/L,the adsorption capacity reaches saturation;with the rise of temperature the saturation adsorption of sulfonate on the oil sands decline;adding an appropriate electrolyte increases the sulfonate saturation adsorption capacity;the addition of alkali increases the adsorption capacity,while the addition of alcohol reduces the adsorption capacity.

关 键 词：十七烷基二甲苯磺酸盐 表面活性剂 两相滴定法 大庆油砂 静态平衡吸附 

分 类 号：TQ247.51[化学工程—有机化工]