Estudo do comportamento azeotrópico da mistura etanol-água em colunas de destilação convencional a diferentes condições de pressão

Maicon Ferreira; Jeffrey León Pulido

doi:10.21158/23823399.v4.n2.2016.1627

Study of the azeotropic behavior of the ethanol-water mixture in columns of conventional distillation at different pressure conditions

10.21158/23823399.v4.n2.2016.1627

Published 2017-06-21

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Study of the azeotropic behavior of the ethanol-water mixture in columns of conventional distillation at different pressure conditions. (2017). Ontare, 4(2), 55-70. https://doi.org/10.21158/23823399.v4.n2.2016.1627

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Abstract

Distillation is a common technique for the separation of liquid streams with two or more components that requires a high demand of energy and is one of the most important unitary operations in the chemical industry. Therefore, this study aims at performing an analysis of the first parameter to be selected for modeling and simulation of the column using the Aspen Plus® process simulator. In addition, three different types of thermodynamic models were analyzed, which were compared with the experimental data, observing their behavior in relation to the values that were calculated with the simulator. By observing the analyzed aspects, it is concluded that the most appropriate thermodynamic model to be used in the simulation of a distillation column for an azeotropic binary ethanol-water mixture is the UNIFAC model. It can also be concluded that the atmospheric pressure of 0.1 shows a better result.