INFLUENCE OF THE SODIUM ACETATE ON THE VAPOR-LIQUID EQUILIBRIUM OF THE SYSTEM WATER-ETHANOL AT NORMAL PRESSURE

INFLUENCE OF THE SODIUM ACETATE ON THE VAPOR-LIQUID EQUILIBRIUM OF THE SYSTEM WATER-ETHANOL AT NORMAL PRESSURE

MAGALHÃES, W. A. P.; MENDES, M. F.

Artigo:

This work aimed the evaluation of a saline extractive distillation for the ethanol production. Unlike the current method of dehydration of ethanol, which uses a solvent, distillation with the use of salt does not include problems related to toxicity and has lower power consumption, since salt is not volatilized within the distillation column. Many salts had been tested like calcium chloride, calcium nitrate and a mixture of sodium and potassium acetates, although vapor-liquid equilibrium data involving them are scarce in the literature. Other works proved that pure potassium acetate and the mixture of acetates can break the azeotrope, but there were not results involving pure sodium acetate. Due to that, in this work, vapor-liquid equilibrium data of the water-ethanol system with pure sodium acetate, at different concentrations, were measured in a Othmer type ebuliometer, at normal pressure. The data were measured at 10, 15 and 20% w/w and at 0.06 mol.L

This work aimed the evaluation of a saline extractive distillation for the ethanol production. Unlike the current method of dehydration of ethanol, which uses a solvent, distillation with the use of salt does not include problems related to toxicity and has lower power consumption, since salt is not volatilized within the distillation column. Many salts had been tested like calcium chloride, calcium nitrate and a mixture of sodium and potassium acetates, although vapor-liquid equilibrium data involving them are scarce in the literature. Other works proved that pure potassium acetate and the mixture of acetates can break the azeotrope, but there were not results involving pure sodium acetate. Due to that, in this work, vapor-liquid equilibrium data of the water-ethanol system with pure sodium acetate, at different concentrations, were measured in a Othmer type ebuliometer, at normal pressure. The data were measured at 10, 15 and 20% w/w and at 0.06 mol.L

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DOI: 10.5151/chemeng-cobeq2014-0835-23438-173549

Referências bibliográficas

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Como citar:

MAGALHÃES, W. A. P.; MENDES, M. F.; "INFLUENCE OF THE SODIUM ACETATE ON THE VAPOR-LIQUID EQUILIBRIUM OF THE SYSTEM WATER-ETHANOL AT NORMAL PRESSURE", p-15220-15227. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-0835-23438-173549