中文摘要：

用平衡釜法测定了常压下,297.15 K下2-甲基丁烷-苯-环丁砜体系以及313.15 K下2,2-二甲基丁烷-苯-环丁砜体系三元液液平衡数据,并应用Othmer-Tobias关联式对数据质量进行检验。然后,分别用NRTL和UNIQUAC模型对所测数据进行了热力学关联,得到了相应的二元能量交互作用参数,并由这些参数对实验点进行理论计算,由均方误差以及平均绝对误差值结果显示,计算值与实验值吻合良好,说明NRTL和UNIQUAC模型均可适用于芳烃抽提过程的模拟和计算。

英文摘要：

Liquid-liquid equilibrium （LLE） of two ternary systems （2-methylbutane-benzene-sulfolane at297.15K and 2,2-dimethylbutane-benzene-sulfolane） were investigated at 313.15 K under atmospheric pressure.The reliability of the experimental data obtained was ascertained by applying the Othmer-Tobias correlationanalysis. The experimental data was then correlated using the activity coefficient models of NRTL andUNIQUAC, which helped to acquire the binary interaction energy parameters. The results reveal that bothmodels used can well match the experimental studies, which indicates that the NRTL and UNIQUAC modelscan be both used to simulate and calculate the process of aromatic hydrocarbon extraction.