CIESC Journal ›› 2016, Vol. 67 ›› Issue (7): 2963-2969.DOI: 10.11949/j.issn.0438-1157.20160004

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Micro-emulsion method for reducing viscosity of petroleum sludge

YANG Jie1, LIU Tianlu1, SONG Huibo2, MAO Feiyan1, HAN Xu1, LIN Bingcheng1, HUANG Qunxing1, CHI Yong1   

  1. 1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China;
    2. Hisun Pharmaceutical Hangzhou Co. Ltd., Hangzhou 311404, Zhejiang, China
  • Received:2016-01-03 Revised:2016-04-07 Online:2016-07-05 Published:2016-07-05
  • Supported by:

    supported by the National Natural Science Foundation of China (51576172) and the National Science and Technology Pillar Program (2012BAB09B03).

微乳液法降低含油污泥黏度

杨洁1, 刘天璐1, 宋慧波2, 毛飞燕1, 韩旭1, 林炳丞1, 黄群星1, 池涌1   

  1. 1. 浙江大学热能工程研究所, 能源清洁利用国家重点实验室, 浙江 杭州 310027;
    2. 海正药业杭州有限公司, 浙江 杭州 311404
  • 通讯作者: 黄群星
  • 基金资助:

    国家自然科学基金项目(51576172);国家科技支撑计划项目(2012BAB09B03)。

Abstract:

In order to reduce the viscosity of petroleum sludge for oil recovery, a micro-emulsion method was studied based on its rheological behavior. The effects of surfactant, micro-emulsion dosage and composition on the viscosity were discussed. The results indicated that the petroleum sludge could be classified as pseudo-plastic fluid and its strong shear-thinning force was attributed to the high content of solid particles in the petroleum sludge. The rheological behavior of petroleum sludge could be described by the P-L model. The results showed that the micro-emulsion could well mix with petroleum sludge and viscosity of the sludge was reduced by more than 95% by adding 25% micro-emulsion by mass. The maximum viscosity reduction was achieved by using sodium dodecyl benzene sulfonate (SDBS) as single surfactant. A viscosity reduction of 99% was obtained with the composited surfactant of OP-10 and SDBS at a ratio of 2:1.

Key words: petroleum sludge, viscosity, rheological model, micro-emulsion, surfactant

摘要:

含油污泥黏度高,流动性差,是含油污泥中油分回收资源化利用的关键瓶颈。基于含油污泥的黏度和流变特性,研究了添加微乳液降低油泥黏度的方法。探讨了微乳液添加量、表面活性剂种类、表面活性剂复配对降黏效果的影响。结果表明,对于所研究的炼化含油污泥,微乳液添加量为25%时,黏度可以降低95%以上,且微乳液可以和油泥均匀混合无分层。微乳液选用单一的表面活性剂时,十二烷基苯磺酸钠(SDBS)的降黏效果最好。当烷基酚聚氧乙烯醚(OP-10)和SDBS按2:1的比例复配且添加量为25%时,黏度可以降低99%以上,降黏效果要优于两者单独使用的效果。

关键词: 含油污泥, 黏度, 流变模型, 微乳液, 表面活性剂

CLC Number: