关键词: 甲基烯丙醇, 气液平衡, 模型, 测定与关联

Abstract: Vapor-liquid equilibrium (VLE) data for acetone (ACT)-methallyl alcohol (MAO) binary system, isopropanol (IPA)-methallyl alcohol binary system and parts of ACT-IPA-MAO ternary system were determined in an Othmer equilibrium at atmospheric pressure (101.3 kPa). The experimental data of binary system were verified by Herington method and were consistent with thermodynamics. The data of ACT-MAO and IPA-MAO binary systems were correlated with the Wilson and NRTL models by Aspen Plus. Respectively, the two models were correlated well with the VLE data and the interaction parameters of ACT-MAO and IPA-MAO were obtained. The Wilson and NRTL interaction parameters of ACT-IPA were already available in Aspen Plus database. Then the vapor compositions of the ternary system were calculated with these interaction binary parameters. Compared with measured experimental VLE data, the mean absolute error of mole fraction for ACT, IPA and MAO is less than 0.0137, 0.0113 and 0.0117. The experimental and correlative data could provide a basis for the distillation separation of ACT-IPA-MAO system.

Key words: methallyl alcohol, vapor liquid equilibria, model, measurement and correlation