化工学报2018，Vol.69Issue(2)：578-585,8.DOI:10.11949/j.issn.0438-1157.20170804
正丁醇-氯苯-苯乙酮三元体系等压汽液平衡的测定与关联
Measurement and correlation of vapor-liquid equilibrium for ternary system of n-butanol-chlorobenzene-acetophenone
摘要
Abstract
The influence of six different solvents on the relative volatility of n-butanol and chlorobenzene system was investigated, which shows that acetophenone has a better performance in this minimum azeotrope system. Isobaric vapor-liquid equilibrium (VLE) data for binary systems of n-butanol-chlorobenzene, n-butanol-acetophenone, chlorobenzene-acetophenone and ternary system of n-butanol-chlorobenzene-acetophenone at 101.33 kPa were measured by using a vapor-liquid equilibrium still. And then, all of the measured VLE values were checked by the area method proposed by Herington and the point-to-point method of Van Ness. Furthermore, the VLE data were correlated by Wilson, NRTL and UNIQUAC activity coefficient, respectively. The binary interaction parameters were used to predict the ternary VLE behavior, which fit with the experimental data. The experimental results indicate that the relative volatility between n-butanol chlorobenzene is changed obviously by adding acetophenone as a solvent at 0.50 mass fraction, which shows that acetophenone is a promising solvent for the separation of the n-butanol and chlorobenzene mixture in extractive distillation. This work provides important engineering data for chemical database and further study in the engineering design.关键词
汽液平衡/正丁醇/氯苯/苯乙酮/热力学模型Key words
vapor-liquid equilibria/n-butanol/chlorobenzene/acetophenone/thermodynamic model分类
化学化工引用本文复制引用
范凯,陈长旭,周峰,郑晖,许春建..正丁醇-氯苯-苯乙酮三元体系等压汽液平衡的测定与关联[J].化工学报,2018,69(2):578-585,8.基金项目
化学工程联合国家重点实验室基金项目.supported by the State Key Laboratory of Chemical Engineering Foundation. （）
