Vapor−Liquid Equilibrium of the Ethanol + 2-Methyl-1-butanol System

Abstract

Vapor-liquid equilibrium data were presented for the ethanol + 2-methyl-1-butanol system, obtained at three operating pressures. A modified Othmer still was used for data acquisition. When the Herington area test was applied to the experimental result, good thermodynamic consistency was found. Several equations based on both classic G E models (Margules and Van Laar) and local composition based models (Wilson, NRTL, and UNIQUAC) were used for data correlation. The UNIFAC group contribution model was applied to predict the activity coefficients of the binary system under study. Results for the ethanol + 2-methyl-1-butanol binary system showed a positive deviation from ideality at all pressures investigated.

Study on volatility and flash point of the pseudo-binary mixtures of sunflowerseed-based biodiesel+ethanol

“…The experimental data are listed in Table 2, where T is the temperature, p is the vapor pressure and w is the mass fraction. Table 3 gives boiling temperatures and Antoine equation constants (compared with literature data) of ethanol [17].…”

Ethanol + 2-Methyl-1-butanol + Calcium Chloride System: Vapor−Liquid Equilibrium Data and Correlation Using the NRTL Electrolyte Model

“…For this study, the experimental VLE data on the three binary systems that compose the ternary system are needed, and these data have been taken from the literature. [9][10][11] NRTL Electrolyte Model. When the NRTL electrolyte model is used with systems constituted by two solvents plus a salt, the equilibrium condition refers only to the solvents since they are the only species present in both phases.…”

Study on volatility and flash point of the pseudo binary mixtures of sunflower-based biodiesel+methylcyclohexane

“…The experimental vapor pressure data of ethanol are compared with the literature data in Fig. 2 [22], and Table 5 gives boiling temperatures and Antoine equation constants (compared with literature data) of ethanol and methylcyclohexane [22][23][24].…”