异戊二烯-正己烷二元体系等温汽液平衡数据的测定及关联

MEASUREMENT AND CORRELATION OF ISOTHERMAL VAPOR-LIQUID EQUILIBRIUM DATA FOR ISOPRENE/n-HEXANE BINARY SYSTEM

利用汽液双循环的平衡釜测定了异戊二烯-正己烷体系在30,40,50℃下的等温汽液平衡数据。所测得的汽液平衡数据通过了Herington法的热力学一致性检验。选用Wilson方程对实验数据进行关联,得到相应的模型参数,汽相摩尔分数的实验值和计算值的平均相对偏差均小于0.33%。

The isothermal vapor-liquid equilibrium data of the binary system for isoprene/n-hexane at 30 ℃, 40 ℃ and 50 ℃ were measured using a vapor liquid-recycled equilibrium still. The experimental data were confirmed by thermodynamic consistency tests using Herington method. Then the data were correlated by Wilson equation and model parameters were obtained. Results show that the average relative deviations between calculated values and experimental data of vapor phase mole fractions are all less than 0.33%.