Artículos de revistas
Prediction And Estimation Techniques For Modeling Pervaporation Process
Registro en:
Computer Aided Chemical Engineering. , v. 21, n. C, p. 619 - 624, 2006.
15707946
10.1016/S1570-7946(06)80114-8
2-s2.0-77955918097
Autor
Alvarez M.E.T.
Moraes E.B.
Maciel M.R.W.
Institución
Resumen
In this work a new mathematical model was proposed for pervaporation process, considering a predictive model for the diffusion coefficient. Through the model equations, a simulator called PERVAP was developed to evaluate the performance of the pervaporation process. For the model validation, the separation of the azeotropic mixture ethanol/water was studied through simulation using a hydrophilic membrane, polyetherimide (PEI), using experimental data obtained from literature. The prediction of the diffusion coefficient was carried out considering the free-volume theory and the parameters were determined from pure component and polymer properties. Group contribution method was also used to predict the binary interaction parameters between the components and the polymer. The proposed model presented good agreement with experimental data, allowing its application for separating other azeotropic systems and, also, for studying the effects of process variables. © 2006 Elsevier B.V. All rights reserved. 21 C 619 624 Vrentas, J.S., Duda, J.L., (1977) J. Polym. Sci. Part B: Polym. Phys., 15, p. 403 Vrentas, J.S., Duda, J.L., (1979) AIChE J., 25 Huang, R.Y.M., Feng, X., (1992) Separation Science and Technology, 27, p. 1583 Ten, P.K., Field, R.W., (1999) Chemical Engineering Science, 55, p. 1425 Wilke, C.R., Chang, P., (1955) AIChE J., 1, p. 264 Gref, R., Nguyen, Q.T., Néel, J., (1992) Separation Science and Technology, 27, p. 467 Brun, J.-P., Larchet, C., Melet, R., Bulvestre, G., (1985) J. Membr. Sci., 23, p. 257 High, M.S., Danner, R.P., (1989) Fluid Phase Equilibria, 53, p. 323 Haward, R.N., (1970) J. Macromol. Sci. Rev. Macromol Chem., C4, p. 191 Alvarez, M.E.T., (2005) Ph.D. Thesis, , State University of Campinas (UNICAMP), Brazil