20 kPa下己酸+乙酸/乙酸丁酯/环己酮/ε-己内酯体系汽液平衡的测定与关联  

Determination and correlation of vapor-liquid equilibrium of n-hexylic acid+acetic acid/butyl acetate/cyclohexanone/ε-caprolactone at 20 kPa

作　　者：陈亚春 张光旭 叶云涛 王浩强 CHEN Ya-chun;ZHANG Guang-xu;YE Yun-tao;WANG Hao-qiang(School of Chemistry,Chemical Engineering and Life Sciences,Wuhan University of Technology,Wuhan 430070,Hubei Province,China)

机构地区：[1]武汉理工大学化学化工与生命科学学院,湖北武汉430070

出　　处：《化学工程》2021年第7期42-47,共6页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(21676206)。

摘　　要：在20 kPa下,用Rose汽液平衡釜测定己酸+乙酸、己酸+乙酸丁酯、己酸+环己酮、己酸+ε-己内酯,4个体系的二元汽液平衡数据,采用Herington面积积分法对汽液平衡数据进行热力学一致性检验,结果显示所有的实验数据均符合热力学一致性。采用NRTL和Wilson活度系数模型对4个二元实验数据进行关联,得到4个二元交互参数。将模型模拟的计算值与实验值进行比较,结果表明Wilson活度系数模型更适用于该4个组分体系的汽液平衡计算。The binary vapor-liquid equilibrium(VLE)data of n-hexylic acid+acetic acid,n-hexylic acid+butyl acetate,n-hexylic acid+cyclohexanone,n-hexylic acid+ε-caprolactone were measured by Rose VLE kettle at 20 kPa.All experimental data were consistent with thermodynamics consistency by using herington area integral testing.NRTL and Wilson activity coefficient models were used to correlate the binary experimental data,and the binary interaction parameters were regressed.Through comparing the simulated value and experimental value,Wilson model was more suitable for the VLE calculation of the four components system.

关 键 词：汽液平衡 己酸 热力学一致性检验 活度系数模型 

分 类 号：TQ018[化学工程]