常压下环己烯-环氧环己烷二元汽液平衡数据的测定和关联.pdfVIP

第23 卷第3 期 荔枝化学工程学报 No .3 VoL23 2009 王军 6 月 Jouma1 ofChemical Engir阳吨。fChinωUniversities June 2009 文章编号: 1003-纯15(2009)03-03岳5-04 常压下环己婿·环氧环己a庭二元;气液平衡数据的测定和关联 王学盆， 蒋登高，耿再新 (郑剖大学化工学院，河南郑州 450001) 摘要z 用分子氧对环己烯直接进行环氧化涉及到的内容之一是环己娟与环氧环己饶的分离.为了为二者的分离提供 基础物性数据，采用了改进的EC-2 型汽液平衡釜溅定了常压下(l0l.33kPa)环己烯(1)-环氧环己统(2)二元体系的汽液平 衡数据，所得结果经检验符合热力学一致性.用 Wilson 方程对所测的汽液平衡数据进行了关联，求出了 Wilson 方程 交互作用参数，并对汽液平衡的计算值与实验值进行了比较，发现二者偏差较小，可以满足工程上环己烯、环氧环己统分 离设计的需要. 关键词z 汽液平衡z 环己烯z 环氧环己统: Wilson 方程 中图分类号: 0642 .42: 0624.12; TQ23 1.I4 文献标识码;A Measurement and Correlation of Vapor Liquid Equilibrium Data for Cyclohexene-l ,2-epoxycyclohexane Binary System under Normal Pressure WANG Xue-meng. J弘NG Deng-gao , GENG Zai-泪n (School ofChemical Engineering, Zhengzhou Univers峙，Zhe鸣边ou 450001 , China) Abstraet: Using dioxyg姐缸。xidizing 唔.ent to ∞nduct the green oxidation of cyclohexene is higl世y desirable because of i也 environmental ∞mpatibility 姐d e∞nomic impacl Separation of the cyclohexe挝 oxidation products depends on the reliable vapor-liquid equilibrium (VLE) data of relevant ∞mponen毡， which are still lacking. The VLE data of cyclohexene and 1 ，2号poxy可c10hexane binary sy如m under ambient press眩e were measured by using an improved VLE equipment of EC-2 still in 出is wo rk. The results show that this binary system has no azeotropic point. Furthermore, the experirnental VLE data were ∞ηelated with the Wilson thermodynamic model and the ∞ηesponding binary interaction par缸neters of the model were obtained. The calculation shows that the VLE data agree well with 也e model and all experiment data pass the thermod严部副c ∞nsistency test of Heηingωn. Key words: vapor-liquid equilibrium; cyclohexene; 1