环己醇、环己酮、二甘醇三组分汽液相平衡研究  

Vapor-liquid equilibria for the ternary systems of cyclohexanol,cyclohexanone and diglycol

作　　者：曾永林[1] 杨运泉[1] 罗和安[1] 段正康[1] 刘文英[1] 

机构地区：[1]湘潭大学化工学院

出　　处：《化学工程》2007年第6期33-36,60,共5页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(20576110);国家科技部中小企业科技创新基金项目(03C26214300402);湖南省教育厅重点项目(05A05)

摘　　要：用ROSE平衡釜测定了环己醇(1)-环己酮(2)、环己酮(1)-二甘醇(2)、环己醇(1)-二甘醇(2)3对二元系常压下的汽液相平衡数据,并对其进行了热力学一致性检验。用改进的Peng-Rob inson方程计算了气相逸度系数,用W ilson方程和NRTL方程分别计算了液相活度系数,拟合得到了模型参数。通过对实验数据进行关联,取得了较满意的结果:二元系实验数据与模型计算值的平均相对偏差在3%以内,三元系实验数据与模型计算值的平均相对偏差在4%以内。所关联的模型参数可靠,实验取得的相平衡数据可用于化工生产的设计、模拟与优化。The atmospheric vapor-liquid equilibrium data of the binary systems cyclohexanol-cyclohexanone, cyclohexanone-diglycol and cyclohexanol-diglycol were measured with a ROSE cell. Integral test was adopted to test the thermodynamics consistency. The fugacity coefficients of vapor phases were calculated by the modified Peng- Robinson equation. The activity coefficients of the liquid phases were calculated by Wilson equation and NRTL equation and satisfactory correlation results of these experimental data were obtained. The relative deviation between the experimental data and the results of model computation for binary system was within 3%. The relative deviation between the experimental data and the results of model computation for ternary system was within 4%. The model parameters are dependable. The vapor-liquid equilibrium data can be applied to design, simulation and optimization in industry.

关 键 词：环己醇 环己酮 二甘醇 汽液相平衡 

分 类 号：TQ013.1[化学工程]