Thermodynamic excess properties of 3,5- and 2,6-dimethylpyridine with cyclohexane measurement and prediction

H Ben-Makhlouf-Hakem,J Jose,A Ait-Kaci,N David,J.-N Jaubert,R Privat

doi:10.1051/matecconf/20130301048

Abstract

The vapour pressures of liquid (3,5; 2,6)-dimethylpyridine with cyclohexane mixtures were measured by a static method in the range of 283.15–353.15 K. The pure components vapour pressures data and those of the mixtures were correlated with the Antoine equation. The molar excess Gibbs energies, calculated from the vapour–liquid equilibrium data compared satisfactorily with group contribution method (DISQUAC).

Highlights

The pure components vapour pressures data and those of the mixtures were correlated with the Antoine equation
Vapor –liquid equilibrium (VLE) data are essential for engineering design of separation processes and unit operations
The liquid phase was analyzed by chromatography (GLC).The pure components vapor pressures data and those of the mixtures were correlated with the Antoine equation

Summary

Introduction

Vapor –liquid equilibrium (VLE) data are essential for engineering design of separation processes and unit operations. The vapour pressures of liquid (3,5; 2,6)-dimethylpyridine with cyclohexane mixtures were measured by a static method in the range of 283.15–353.15 K. The pure components vapour pressures data and those of the mixtures were correlated with the Antoine equation.

Results

Conclusion