The isobaric vapor–liquid
equilibrium data for
citronellal
+ geraniol and citronellal + citronellol systems were obtained experimentally
at vacuum pressures of 16.0 and 32.0 kPa using a modified glass Othmer
still. Gas chromatography was used to analyze the equilibrium samples
of liquid- and vapor-phase compositions. The reliability of the experimental
data determined in this study was confirmed using the L–W Wisniak and Fredenslund methods. The data
were correlated with the Wilson, NRTL, and UNIQUAC equations to obtain
the binary parameters, resulting in an average absolute deviation
of the temperature of less than 0.5 and a vapor fraction of less than
0.0286. Prediction of the vapor–liquid equilibrium data of
related systems was obtained using UNIFAC, giving better results at
16.0 kPa.
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