Isothermal vapour–liquid equilibria in the binary and ternary systems composed of 2,2,4-trimethylpentane, 2-methyl-1-propanol, and 4-methyl-2-pentanone

Vapour–liquid equilibrium data in the three binary 2,2,4-trimethylpentane + 2-methyl-1-propanol, 2-methyl-1-propanol + 4-methyl-2-pentanone, 2,2,4-trimethylpentane + 4-methyl-2-pentanone systems, and in the ternary 2,2,4-trimethylpentane + 2-methyl-1-propanol + 4-methyl-2-pentanone system are reported. The data were measured isothermally at 333.15, 348.15 and 364.15 K covering the pressure range 12–100 kPa. The binary vapour–liquid equilibrium data were correlated using the Wilson and NRTL equations by means of a robust algorithm for processing all isotherms together; resulting parameters were then used for calculation of phase behaviour in the ternary system and for subsequent comparison with experimental data.

► We have measured new experimental data on vapour–liquid equilibria at isothermal conditions.
► Three binary and one ternary systems consisting of isooctane + isobutanol + isobutyl methyl ketone were investigated.
► Correlation of data with use of the Wilson and NRTL equation.
► Prediction of phase equilibria in ternary system based on binary data.