Petri Uusi-Kyyny

Vapor liquid equilibrium for the binary systems 2-methylpentane + 2-butanol at 329.2 K and n-hexane + 2-butanol at 329.2 and 363.2 K with a static apparatus

Abstract A static total pressure apparatus was build. Isothermal vapour–liquid equilibrium of two binary systems, 2-methylpentane+2-butanol at 329.2xa0K and n -hexane+2-butanol at 329.2xa0K and 363.2xa0K were measured. The results of the 2-methylpentane+2-butanol measurements were compared with earlier measurements made with a recirculation still and good agreement was found. The ability of estimation methods (UNIFAC and modified UNIFAC Dortmund) to predict the measured data was tested. The capability of the original UNIFAC to predict the behaviour of the systems measured was worse than the performance of the modified UNIFAC Dortmund.

Vapour–liquid equilibrium for the 1-butene + methanol, + ethanol, + 2-propanol, + 2-butanol and + 2-methyl-2-propanol systems at 326 K

An automated static total pressure measurement apparatus was used to measure isothermal vapor−liquid equilibria for five binary systems:u2009 trans-2-butene + methanol, + ethanol, + 2-propanol, + 2-butanol, and + 2-methyl-2-propanol at 332.3 K. Error analysis of the measured results has been presented. All systems exhibited positive deviation from Raoults law. The trans-2-butene + methanol and trans-2-butene + ethanol systems showed azeotropic behavior.

Vapour–liquid equilibrium for the cis-2-butene + methanol, + ethanol, + 2-propanol, + 2-butanol and + 2-methyl-2-propanol systems at 337 K

Abstract A static total pressure apparatus was built. Isothermal vapour–liquid equilibrium of five binary systems cis -2-butene + methanol, + ethanol, + 2-propanol, + 2-butanol and + 2-methyl-2-propanol systems at 337xa0K was measured. All systems exhibited positive deviation from Raoult’s law and cis -2-butene + methanol, cis -2-butene + ethanol showed azeotropic behaviour.