An equipment for dynamic measurements of vapour-liquid equilibria and results in binary systems containing cyclohexylamine

被引：23

作者：

Grenner, A ^{[1
]}

Klauck, M ^{[1
]}

Schmelzer, JR ^{[1
]}

机构：

[1] Dresden Univ Appl Sci, Dept Chem Engn, Hsch Tech & Wirtschaft, D-01069 Dresden, Germany

来源：

FLUID PHASE EQUILIBRIA | 2005年 / 233卷 / 02期

关键词：

data; experimental methods; vapour-liquid equilibria; vapour pressure; cyclohexylamine;

D O I：

10.1016/j.fluid.2005.05.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A computer-aided equipment for precise measurements of vapour-liquid equilibrium (VLE) data at normal and low pressures using the dynamic method will be introduced. The apparatus consists of a circulation still which allows isothermal and isobaric measurements. The digital measurement and control system is accomplished by a multimeter coupled with a PC via IEEE-card. The quality of the measurement data is demonstrated by a comparison of the measured vapour pressure data of the pure substances toluene, n-octane and cyclohexylamine with the vapour pressure equation of Daubert and Danner. Furthermore, vapour-liquid equilibrium data were measured in the binary systems cyclohexylamine + aniline or water or n-octane. The measured data were regressed according to the activity coefficient models NRTL, UNIQUAC and to the Elliott-Suresh-Donohue-equation of state (ESD-EOS). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：170 / 175

页数：6

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