Vapor−Liquid Equilibria for the Hexane + Hexadecane and Hexane + 1-Hexadecanol Systems at Elevated Temperatures and Pressures

Abstract

Vapor and liquid equilibrium compositions have been measured for the hexane + hexadecane and the hexane + 1-hexadecanol systems at temperatures from 472.0 K to 623.0 K and pressures from 6.2 bar to 46.4 bar. A continuous-flow apparatus was used both to minimize possible thermal degradation and to accurately measure the lower hexadecanol concentrations in the vapor phase. Mixture critical pressures and compositions were also measured. Results indicate that the addition of the hydroxyl group to the C 16 hydrocarbon backbone significantly affects the phase behavior with hexane.

Separation of Fischer-Tropsch Wax From Catalyst by Supercritical Extraction

“…Therefore, it is concluded that equilibrium conditions were present for all binary systems that were measured. These results have also been reported in the open literature Thies, 1997, 1998;Joyce et al, 1998Joyce et al, , 1999aJoyce et al, , 1999b. Considering all sources of error, the reported liquid and vapor compositions are accurate to better than ±3 and ±4% deviation in the minor component, respectively.…”

Modelling the phase behavior of alkane mixtures in wide ranges of conditions: New parameterization and predictive correlations of binary interactions for the RKPR EOS

“…19 Prediction of critical lines for different n-hexane + n-alkane binary systems, with the RKPR EOS and correlations developed in this work. Experimental data from [32][33][34]. …”

New Correlations for Prediction of High-Pressure Phase Equilibria of n-Alkane Mixtures with the RKPR EoS: Back from the Use of lij (Repulsive) Interaction Parameters

“…Calculations with the PR EoS (dashed lines) and RKPR EoS (solid line) correspond to quadratic mixing rules with null interaction parameters. Symbols: Experimental data from refs − .…”