Vapour-liquid equilibrium for the 2-methylpropane plus methanol, +ethanol, +2-propanol, +2-butanol and +2-methyl-2-propanol systems at 313.15 K

被引:13
作者
Ouni, T [1 ]
Zaytseva, A [1 ]
Uusi-Kyyny, P [1 ]
Pokki, JP [1 ]
Aittamaa, J [1 ]
机构
[1] Aalto Univ, Dept Chem Technol, FIN-02015 Helsinki, Finland
关键词
vapour-liquid equilibrium; predictive methods; COSMO-RS; 2-methylpropane; alcohol;
D O I
10.1016/j.fluid.2005.03.016
中图分类号
O414.1 [热力学];
学科分类号
摘要
An automated total pressure measurement apparatus was used to measure PTz data that was regressed into PTxy data using the method of Barker (1953). The isothermal vapour-liquid equilibrium measurements were carried out for the five binary systems 2-methylpropane + methanol, +ethanol, +2-propanol, +2-butanol and +2-methyl-2-propanol at 313.15 K. Error analysis of the measured results is presented. Measurements were compared with predictions given by UNIFAC and COSMO-RS. All systems exhibited positive deviation from Raoult's law and azeotropic behaviour was found for the systems 2-methylpropane + methanol and 2-methylpropane + ethanol. (c) 2005 Elsevier B.V All rights reserved.
引用
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页码:90 / 99
页数:10
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