Abstract
Vapor-liquid equilibrium in binary water+congeners mixtures found in alcoholic distillation has been analyzed using the Peng-Robinson equation of state and one of the most popular modern mixing rules, the Wong-Sandler model. Accurate modeling of the concentration of congeners (substances different from ethanol and water) in the vapor phase is of special importance because these substances give some special characteristics of flavor and aroma to the final distilled spirit and also because their concentrations are regulated by law. In the Wong-Sandler mixing rules the van Laar model for the Gibbs excess energy has been used. The type of model used in this work is commonly used to correlate high pressure phase equilibrium and has not yet been used to treat complex low pressure water+congener mixtures as done in this work. Eight binary water+congeners mixtures have been considered for analysis. Comparison with available literature data is done and the accuracy of the model to correlate the pressure and the vapor phase concentration of the congeners is discussed. It is concluded that the model used is accurate enough for distillation analysis, modeling and simulation.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
A. Hikari and R. Kubo, J. Chem. Eng. Japan, 8, 294 (1975).
M. P.Y. Lillo, E. Latrille, G. Casaubon, E. Agosin, E. Bordeu and N. Martin, Food Quality and Preference Jan., 16, 59 (2005).
J. Lora, M. I. Iborra, R. Perez and I. Carbonell, Rev. Esp. Cien. Tec. Ali., 32, 621 (1992).
C.A. Faúndez, V.H. Alvarez and J.O. Valderrama, Thermochimica Acta, 450, 110 (2006).
V. Athès, P. Paricaud, M. Ellaite, J. Souchon and W. Fürst, Fluid Phase Equilibria, 265, 139 (2008).
J. M. Prausnitz, R. N. Lichtenthaler and E. Gomes de Azevedo, Molecular thermodynamics of fluid-phase equilibria, Prentice Hall International Series, New Jersey, USA (1999).
J. O. Valderrama, Ind. Eng. Chem. Research, 42, 1603 (2003).
S.M. Walas, Phase equilibria in chemical engineering, Butterworth Pub., Storeham (1985).
J. O. Valderrama, C. Pizarro and R. Rojas, Alimentaria, 39, 151 (2001).
C.A. Faúndez and J.O. Valderrama, J. Food Eng., 65, 577 (2004).
C.A. Faúndez, V. H. Alvarez and J. O. Valderrama, J. Phase Equilib. Diff., 25, 230 (2004).
V.H. Alvarez, C.A. Faúndez and J.O. Valderrama, Can. J. Chem. Eng., 83, 485 (2005).
H. Orbey and S. I. Sandler, Equations of state and their mixing rules, Cambridge University Press, USA (1998).
C. Kwak, S. I. Sandler and H. S. Byun, Korean J. Chem. Eng., 23, 1016 (2006).
G. Seong, A. R. Kim, K. P. Yoo and J. S. Lim, Korean J. Chem. Eng., 26, 206 (2009).
O. Ferreira, E.A. Brignole and E.A. Macedo, J. Chem. Thermodynamics, 36, 1105 (2004).
X. S. Li and P. Englezos, Fluid Phase Equilibria, 224, 111 (2004).
N.M. Al-Saifi, E. Z. Hamad and P. Englezos, Fluid Phase Equilibria, 271, 82 (2008).
D.Y. Peng and D.B. Robinson, Ind. Eng. Chem. Fundam., 15, 59 (1976).
M. I. Huron and J. Vidal, Fluid Phase Equilibria, 3, 255 (1979).
D. S. Wong and S. I. Sandler, AIChE J., 38, 671 (1992).
S. Dahl and M. L. Michelsen, AIChE J., 36, 1829 (1990).
M. T. Lee and S. T. Lin, Fluid Phase Equilibria, 254, 28 (2007).
T. E. Daubert, R. P. Danner, H. M. Sibul and C.C Stebbins, Physical and thermodynamic properties of pure chemicals, Data compilation, Taylor & Francis, London, UK (1996).
J. Gmehling, U. Onken and W. Arlt, Vapor-liquid equilibrium data collection, DECHEMA, Frankfurt, Germany (1982).
S. Ohe, Vapor-liquid equilibrium data, physical sciences data 37, Kodansha Ltd., Tokyo and Elsevier Science Publishers B. V. Amsterdan (1989).
M. Reilly, Computer programs for chemical engineering education, vol. 2, Sterling Swift, TX, USA (1972).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Faúndez, C.A., Urbina, F.A. & Valderrama, J.O. Vapor-liquid equilibrium in low pressure water+congener mixtures. Korean J. Chem. Eng. 26, 1373–1378 (2009). https://doi.org/10.1007/s11814-009-0200-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-009-0200-0