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阳离子表面活性剂对甲苯与水间气-液平衡关系的影响

莫 虹 田森林 李英杰

莫 虹, 田森林, 李英杰. 阳离子表面活性剂对甲苯与水间气-液平衡关系的影响[J]. 环境科学研究, 2009, 22(11): 1352-1355.
引用本文: 莫 虹, 田森林, 李英杰. 阳离子表面活性剂对甲苯与水间气-液平衡关系的影响[J]. 环境科学研究, 2009, 22(11): 1352-1355.
MO Hong, TIAN Sen-lin, LI Ying-jie. Effect of Cation Surfactant on Vapor-Liquid Equilibrium between Toluene and Water[J]. Research of Environmental Sciences, 2009, 22(11): 1352-1355.
Citation: MO Hong, TIAN Sen-lin, LI Ying-jie. Effect of Cation Surfactant on Vapor-Liquid Equilibrium between Toluene and Water[J]. Research of Environmental Sciences, 2009, 22(11): 1352-1355.

阳离子表面活性剂对甲苯与水间气-液平衡关系的影响

基金项目: 国家自然科学基金项目(20607008);云南省教育厅科学研究基金项目(07Y11138);云南省中青年学术带头人后备人才培养经费项目(2007PY01-08)

Effect of Cation Surfactant on Vapor-Liquid Equilibrium between Toluene and Water

  • 摘要: 为探明表面活性剂对水体中挥发性有机物挥发作用的影响,采用顶空气相色谱法并通过改变相比,研究了甲苯与氯代十六烷基吡啶(CPC)溶液间的气-液平衡关系. 结果表明:体系达到平衡后甲苯气相浓度(峰面积)与相比具有良好的线性关系,且二者间的线性关系可通过方程1/ApRf/HiCio+Rf/Cio(Vg/VL)进行拟合并得到亨利系数值.溶液中CPC浓度的变化对甲苯的亨利系数有明显影响,平衡体系的亨利系数值随着CPC浓度的增大而减小;当CPC浓度小于临界胶束浓度(CMC)时,CPC浓度的增加对亨利系数的影响不明显;当CPC浓度在CMC以上时,随着CPC浓度的增加亨利系数减小趋势明显.温度对亨利系数有显著影响,亨利系数随温度的升高而增大,且二者间存在良好的线性关系,并可通过Van’t Hoff方程进行拟合.

     

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出版历程
  • 收稿日期:  2009-04-05
  • 修回日期:  2009-06-17
  • 刊出日期:  2009-11-25

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