Vapor-liquid equilibrium for the systems 2-methylpropane plus methanol,plus 2-propanol,plus 2-butanol, and plus 2-methyl-2-propanol at 364.5 K

被引:3
作者
Laavi, Helena [1 ]
Uusi-Kyyny, Petri [1 ]
Pokki, Juha-Pekka [1 ]
Pakkanen, Minna [1 ]
Alopaeus, Ville [1 ]
机构
[1] Helsinki Univ Technol, Dept Biotechnol & Chem Technol, FIN-02015 Helsinki, Finland
关键词
D O I
10.1021/je800021r
中图分类号
O414.1 [热力学];
学科分类号
摘要
Vapor-liquid equilibrium (VLE) data were measured using a static total pressure apparatus for binary pairs of 2-methylpropane (isobutane) + methanol, + 2-propanol, + 2-butanol, and + 2-methyl-2-propanol (TBA) at 364.51 K. The measured T, p, z data were fitted with Legendre polynomials and reduced by using the method of Barker to obtain the phase equilibrium data. In addition to Legendre polynomials, Wilson binary interaction parameters for the activity coefficient model were regressed. Azeotropic behavior was observed for the binary 2-methylpropane (1) + methanol (x(1) = 0.871, p = 1822 kPa).
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页码:913 / 918
页数:6
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