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An Equipment for Dynamic Measurements of Vapour–liquid Equilibria and Results in Binary Systems Containing Cyclohexylamine by Andreas Grenner; Mandy Klauck; Jürgen Schmelzer is a Engineering article available to read on EtoBox.

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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).

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Author

Andreas Grenner; Mandy Klauck; Jürgen Schmelzer

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-3812)

Published

2005

Language

EN

Field

Engineering (Physical Sciences)