Isobaric Vapor−Liquid Equilibria of Binary and Ternary Mixtures of Heavy Ethers, Isoamylenes, and Alcohols. 1. The Tertiary Amyl Methyl Ether, 2-Methyl-1-butene, and Methanol

Abstract

The vapor−liquid equilibrium of binary and ternary mixtures consisting of methanol, 2-methyl-1-butene (2M1B), and tert-amyl methyl ether (TAME) was determined at a constant pressure (87 kPa) with an Othmer-type equilibrium still, and activity coefficient models were evaluated. Using a nonlinear regression technique for evaluating the equilibrium models and associated interaction parameters, it was found that the Wilson, NRTL, and UNIQUAC models agreed very well with the binary experimental results. It was also found that the theoretical predictions using the multicomponent NRTL and UNIQUAC models, with binary interaction parameters evaluated from the binary data, agreed with experimental ternary results.