真空下C_(10)与DMP体系汽液相平衡的研究  

Vapor-liquid equilibrium of C_(10) and dimethyl phthalate in vacuum

作　　者：王萌萌[1] 张敏卿[2] 高中良[1] 刘圣[1] 

机构地区：[1]河北工业大学化工学院,天津300130 [2]天津大学化工学院,天津300072

出　　处：《化学工程》2016年第10期32-36,共5页Chemical Engineering(China)

基　　金：国家高技术发展计划项目(2011AA05A204)

摘　　要：在7.36 k Pa下采用汽液相平衡釜测定了正癸烷-1-癸烯、正癸烷-邻苯二甲酸二甲酯(DMP)、1-癸烯-邻苯二甲酸二甲酯(DMP)和正癸烷-1-癸烯-邻苯二甲酸二甲酯的等压汽液相平衡数据。二元体系的实验数据通过了Herington面积法和热力学一致性校验,利用NRTL模型、Wilson模型和UNIQUAC模型对实验数据进行关联,得到相应的模型参数和关联偏差。实验结果表明:正癸烷-1-癸烯、正癸烷-邻苯二甲酸二甲酯和1-癸烯-邻苯二甲酸二甲酯二组分物系均不形成共沸物,模拟结果与实验值接近。最后用关联得到的模型参数预测了三元体系的汽液平衡数据。实验值与预测值吻合,可满足萃取精馏工艺设计的需要。The isobaric vapor-liquid equilibrium （VLE） data of the systems 1-decene ＋ n-decane, 1-decene ＋ dimethyl phthalate, n-decane ＋ dimethyl phthalate, 1-deeene ＋ n-deeane ＋ dimethyl phthalate were obtained at the pressure of 7.36 kPa using a modified equilibrium still. The experimental data were verified through the semi- empirical methods of Herington, and the thermodynamic consistency was satisfactory. The activity coefficients were correlated with the non-random two-liquid （NRTL）, Wilson, and Universal Quasichemieal （UNIQUAC） models. No azeotropie mixture in the three binary systems was observed. At last, the ternary system vapor-liquid equilibrium data predicted from obtained equation parameters were with good accuracy. The obtained parameters of NRTL models were considered to be able to satisfy the requirement of current engineering design.

关 键 词：正癸烷 1-癸烯 邻苯二甲酸二甲酯 模型关联 

分 类 号：O642.42[理学—物理化学]