Homogeneity of the water + ethanol + toluene azeotrope at 101.3 kPa

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Title: Homogeneity of the water + ethanol + toluene azeotrope at 101.3 kPa
Authors: Gomis Yagües, Vicente | Font, Alicia | Saquete Ferrándiz, María Dolores
Research Group/s: Equilibrio entre Fases
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química
Keywords: Water | Ethanol | Toluene | Vapour-liquid-liquid equilibrium | Distillation | Azeotrope
Knowledge Area: Ingeniería Química
Issue Date: 25-Apr-2008
Publisher: Elsevier
Citation: GOMIS YAGÜES, Vicente; FONT ESCAMILLA, Alicia; SAQUETE FERRÁNDIZ, María Dolores. “Homogeneity of the water + ethanol + toluene azeotrope at 101.3 kPa”. Fluid Phase Equilibria. Vol. 266, Issues 1-2 (25 Apr. 2008). ISSN 0378-3812, pp. 8-13
Series/Report no.: LV | 7
Abstract: An all-glass, dynamic recirculating still equipped with an ultrasonic homogenizer has been used in the determination of the vapour-liquid equilibrium (VLE) and vapour-liquid-liquid equilibrium (VLLE). Consistent data for the ternary water + ethanol + toluene system are reported at 101.3 kPa at temperatures in the range of 347-357K. These data have been compared with previously published VLLE data. The experimental data indicate that a ternary azeotrope is present at 347.60K. It has been determined experimentally that the ternary azeotrope is homogeneous and not heterogeneous as is claimed in some of the studied references. The experimental results have been used to check the accuracy of the UNIFAC, UNIQUAC and NRTL models, proving that these models predict a bigger heterogeneous region than the experimental one.
Sponsor: European Community (FEDER Funds) and the MEC of Spain (project CTQ2006-10250).
URI: http://hdl.handle.net/10045/8177
ISSN: 0378-3812
DOI: 10.1016/j.fluid.2008.01.018
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.fluid.2008.01.018
Appears in Collections:INV - EQF - Artículos de Revistas

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