高等学校化学学报

高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (08): 1777.doi: 10.3969/j.issn.0251-0790.2012.08.026

• 物理化学 • 上一篇    下一篇

微乳液脱除油泥砂中的原油

闫栋栋1, 杜娜2, 侯万国1,2   

  1. 1. 山东大学环境研究院, 济南 250100;
    2. 国家胶体材料工程技术研究中心, 济南 250100
  • 收稿日期:2011-12-08 出版日期:2012-08-10 发布日期:2012-08-10
  • 通讯作者: 侯万国, 男, 博士, 教授, 主要从事胶体与界面化学研究. E-mail: wghou@sdu.edu.cn E-mail:wghou@sdu.edu.cn
  • 基金资助:

    山东省自然科学基金(批准号: 2009ZRB01722)资助.

Removal of Crude Oil from Oily Sludge by Microemulsion

YAN Dong-Dong1, DU Na2, HOU Wan-Guo1,2   

  1. 1. Environment Research Institute, Shandong University, Jinan 250100, China;
    2. National Engineering Technology Research Center for Colloidal Materials, Shandong University, Jinan 250100, China
  • Received:2011-12-08 Online:2012-08-10 Published:2012-08-10

PDF (PC)

被引次数

3

摘要： 以煤油为油相, 十二烷基苯磺酸钠(SDBS)为主表面活性剂, 正戊醇为助表面活性剂, 通过改变NaCl浓度分别制备出上相、 中相和下相3种类型的微乳液, 研究了其对油泥砂中原油的脱除效率, 考察了微乳液类型、 油泥砂处理量、 时间和温度等的影响. 结果表明, 油相在下相微乳液中的脱油效率最高, 在中相中次之, 在上相中最低, 且油相脱油率与油泥砂处理量间具有良好的线性关系; 在所考察的时间(10~60 min)和温度(20~70℃)范围内, 脱油效率变化幅度不显著, 表明该体系可对油泥砂进行常温快速脱油处理.

关键词: 微乳液, 油泥砂, 原油回收

Abstract: Kerosene as oil phase, sodium dodecyl benzene sulfonate(SDBS) as the major surfactant, and pentanol as co-surfactant, three types of microemulsions, i.e. lower-phase(O/W), middle-phase(biconti-nuous) and upper-phase(W/O), were obtained upon the changing of NaCl concentration. The removal of crude oil from oily sludge by the microemulsions was studied, and the effects of microemulsion type, oily sludge concentration, time and temperature on crude oil removal efficiency were examined. The results show that the crude oil removal of the oil phase in lower-phase microemulsiom from the oily sludge is most efficient, followed by middle-phase microemulsion, and upper-phase is the lowest. Meanwhile, a good linear relationship between the crude oil removal efficiency of oil phase and oily sludge concentration is observed. When the detergency time varied between 10-60 min and temperature between 20-70℃, there is no remarkable change observed. Thus, the oily sludge can be treated fast by the studied microemulsion at room temperature.

Key words: Microemulsion, Oily sludge, Crude oil recovery

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