摘要
用基于精馏原理设计的共沸点测定装置直接测定了苯-正庚烷-乙醇体系在100.4、47.09、40.69、25.06、21.18、14.69kPa压力下的三元共沸数据。研究了三元共沸点随压力的变化规律,并用经验方程进行了关联。用Wilson活度系数模型从相应体系的二元共沸数据预测了该体系的三元共沸数据,并与实验数据进行比较,获得了一致的结果。
An azeotrope apparatus with rectification is utilized to determine the tennary azeotropic data for benzene-n-heptane-ethanol mixtures at pressures of 100.4, 47.09, 40.69, 25.06, 21.18 and 14.49 kPa. The relationship of ternary azeotrope with pressures is studied and correlated by empirical equations. The ternary azeotropic data are predicted by Wilson model from the azeotropic data of corresponding binary mixtures, and are compared to the experimental data with good agreement.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1994年第3期109-113,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
浙江省自然科学基金
