丙酸丙酯与正戊醇二元体系在101.3kPa压力下气液相平衡研究OA
Study on the Vapor-Liquid Phase Equilibrium for Propyl Propionate-n-Pentanol Binary System at 101.3 kPa
使用气液相平衡测量装置和阿贝折光仪,采用折光率分析法对 101.3 kPa下的丙酸丙酯-正戊醇二元体系气液相平衡关系进行研究,得到了其在 101.3 kPa下的气液相平衡数据.采用 Herington 面积积分法对实验数据进行热力学一致性检验,在此基础上绘制了该二元体系的 t-x-y、x-y相图.采用 Wilson活度系数模型对实验数据进行模拟,得到了二元作用参数.结果表明,Wilson模型对应的气相组成平均相对偏差为 0.163 2%,平衡温度t平均相对偏差为 0.032 51%,预测数据与实验数据吻合良好,该模型适合模拟常压下丙酸丙酯-正戊醇体系的分离工艺.
The isobaric vapor-liquid phase equilibria relationship for the binary system of propyl propionate-n-pentanol at 101.3 kPa was studied with a gas-liquid phase equilibrium measurement device and an Abbe refrac-tometer by the refractive index analysis method,and the gas-liquid phase equilibrium data at 101.3 kPa was ob-tained.Furthermore,the thermodynamic consistency of the experimental data was verified by using the Herington area integration method.On this basis,the t-x-y and x-y phase diagrams of the binary system were drawn.Finally,the experimental data were correlated with the Wilson activity coefficient model to acquire binary interac-tion parameters.The results showed that the average relative deviation(ARRD)of 0.163 2%for the vapor phase composition and 0.032 51%for the equilibrium temperature were yielded with the Wilson model.The pre-dicted data exhibited good agreement with the experimental data,indicating that the Wilson model was suitable for simulating the separation process of the propyl propionate-n-pentanol system at 101.3 kPa.
WANG Lin;WANG Siqian;ZHANG Xueke;LI Rulin
School of Chemistry and Pharmaceutical Engineering,Nanyang Normal University,Nanyang Henan 473061,ChinaSchool of Chemistry and Pharmaceutical Engineering,Nanyang Normal University,Nanyang Henan 473061,ChinaSchool of Chemistry and Pharmaceutical Engineering,Nanyang Normal University,Nanyang Henan 473061,ChinaSchool of Biological and Chemical Engineering,Nanyang Institute of Technology,Nanyang Henan 473004,China
化学化工
丙酸丙酯正戊醇气液相平衡Wilson方程
propyl propionaten-pentanolvapor-liquid phase equilibriumWilson equation
《南阳师范学院学报》 2026 (1)
42-46,5
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