论文部分内容阅读
采用气相EPICS(equilibrium partitioning in closed system)法研究了甲苯与非离子表面活性剂TritonX-100(TX100)溶液间气液平衡分配关系.研究表明,甲苯的表观亨利系数(Hc)随TX100浓度的增加而降低,TX100可明显地影响甲苯在气液相的分配行为,抑制甲苯挥发;当TX100的浓度低于其临界胶束浓度(CMC),浓度的增加对Hc影响不明显,抑制甲苯挥发能力相对较弱;浓度大于CMC,Hc随表面活性剂浓度的增加迅速降低.温度对Hc的影响显著,温度升高,相应Hc也随之增大.
The equilibrium partitioning in closed system (EPICS) method was used to study the gas-liquid equilibrium partition between toluene and nonionic surfactant TritonX-100 (TX100). The results showed that the apparent Henry’s coefficient (Hc) TX100 could significantly affect the partitioning behavior of toluene in the gas-liquid phase and inhibit the toluene volatilization. When the concentration of TX100 was lower than its critical micelle concentration (CMC), the concentration of TX100 had no obvious effect on Hc and inhibited the volatilization of toluene Hc decreased rapidly with the increase of surfactant concentration.The temperature had a significant effect on Hc, while the temperature increased, the corresponding Hc also increased.