含盐体系汽液平衡的热力学一致性检验

CIESC Journal

含盐体系汽液平衡的热力学一致性检验

陈斐,朱自强,姚善泾

浙江大学化工系,浙江大学化工系,浙江大学化工系杭州 ,杭州 ,杭州

出版日期:1989-04-25 发布日期:1989-04-25

The Thermodynamic Consistency Test of VLE for Salt-Containing System

Chen Fei, Zhu Ziqiang and Yao Shanjing (Department of Chemical Engineering, Zhejiang University, Hangzhou)

Online:1989-04-25 Published:1989-04-25

摘要/Abstract

摘要： 将拟二元方法与Barker法相结合可从三元含盐体系的P-T-x数据推算相应的平衡汽相组成,逐点比较其推算值与实测值,即可检验汽液平衡数据的热力学一致性.具体地对醇(乙醇、异丙醇)-水-盐(氯化钙、醋酸钾)体系的等压汽液平衡数据进行了热力学一致性检验,所得结果满意.含盐溶液P-T-x推算汽相组成的成功,为改进含盐溶液汽液平衡的测试手段创造了条件.

Abstract: By combining a pseudo-binary model with the Barkers method, it ispossible to predict the vapor phase mole fractions of a three-component salt-containing system from the relative P-T-x, data. The predicted values were compared with the experimental ones, point by point, to test the thermody-narnic consistency of VLE data. The isobaric VLE data for alcohol (ethanol, isopropanol)-water-salt(CaCl2, KAc)systems were tested, and good results were obtained. The success in predicting vapor phase mole fractions from P-T-x data paves the way for improving the determination of VLE for salt-contain-

陈斐,朱自强,姚善泾. 含盐体系汽液平衡的热力学一致性检验 [J]. CIESC Journal.

Chen Fei, Zhu Ziqiang and Yao Shanjing (Department of Chemical Engineering, Zhejiang University, Hangzhou). The Thermodynamic Consistency Test of VLE for Salt-Containing System[J]. .