乙苯+甲苯和乙苯+正丙醇二元体系汽液平衡  

Isobaric Vapor-liquid Equilibrium of Ethylbenzene + Methylbenzene and Ethylbenzene + n-Propanol Binary Systems

作　　者：张鑫宇 ZHANG Xin-yu(No.171 Middle School,Beijing 100013,China)

机构地区：[1]第一七一中学(北京),北京朝阳100013

出　　处：《辽宁化工》2018年第9期862-865,共4页Liaoning Chemical Industry

摘　　要：采用改进的Rose-William汽液平衡釜测定了二元体系乙苯+甲苯和乙苯+正丙醇在101.3k Pa下的汽液平衡数据。使用Herington方法对实验数据进行检验,两组数据均通过热力学一致性检验。利用NRTL,Wilson和UNIQUAC活度系数模型进行关联,并获取二元交互作用参数。结果表明UNIQUAC模型为最佳拟合模型。本文为精馏设计提供了基础数据。Isobaric vapor-liquid equilibrium（VLE） data of ethylbenzene ＋ methylbenzene and ethylbenzene ＋ n-propanol binary systems at 101.3 kPa were measured with a modified Rose-William still. The experimental data passed the thermodynamic consistency check with Herington method. The experimental data was correlated by non-random two-liquid（NRTL）, Wilson and universal quasi-chemical（UNIQUAC） activity coefficient models, and the binary interaction parameters were obtained. The results showed that UNIQUAC is the best-fitted model. This paper provides reliable data for distillation design.

关 键 词：汽液平衡 NRTL方程 UNIQUAC方程 WILSON方程 

分 类 号：TQ013.1[化学工程]