Vapour-liquid equilibrium of octane-enhancing additives in gasolines 2. Total pressure data and g(E) for binary and ternary mixtures containing tert-amylmethyl ether (TAME), tert-amyl alcohol (TAOH) and n-hexane

Vapour-liquid equilibria of the ternary system (tert-amylmethyl ether (TAME ) + tert-amyl alcohol (TAOH) + n-hexane) and for their constituent binary s ystems have been measured at 313.15 K, Data reduction by Barker's method pr ovides correlations for g(E) using the Margules equation for the binary sys tems and the Wohl expansion for the ternary system. Wilson, NRTL and UNIQUA C models have been applied successfully to both the binary and the ternary systems. Moreover, we compare the experimental results for these binary mix tures to the prediction of the UNIFAC (Dortmund) model. Experimental result s have been compared to predictions for the ternary system obtained from th e Wilson, NRTL, UNIQUAC and UNIFAC models. The presence of azeotropes in th e binary systems has been studied. (C) 2001 Elsevier Science B,V. All right s reserved.