2-甲基丁烷、2,2-二甲基丁烷-苯-环丁砜体系液液平衡数据的测定与关联  

Study on Liquid-Liquid Equilibrium of 2-Methylbutane/2,2-Dimethylbutane-Benzene–Sulfolane Ternary Systems

作　　者：孙晓岩[1] 项曙光[1] 

机构地区：[1]青岛科技大学炼油化工高新技术研究所,山东青岛266042

出　　处：《高校化学工程学报》2014年第2期412-415,共4页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金(21176127)

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。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.

关 键 词：苯 环丁砜 液液平衡 测定 关联 

分 类 号：O642.42[理学—物理化学]