Pervaporative transfer modeling through dense membranes validation of the scattered packet method

  • Authors

    • Azzouz Essamri Laboratory of Agroressources and process engineering, Faculty of Sciences, University Ibn Tofail, Kenitra, Morocco.
    • Rachid El Gouri -National School of Applied Sciences (ENSA), Ibn Tofail University P.O.Box: 242, Kenitra 14000, Morocco -Laboratory of Electrical Engineering and Energy Systems, Faculty of Sciences, University Ibn Tofail, Kenitra, Morocco.
    • F.Z Zouair Laboratory of Agroressources and process engineering, Faculty of Sciences, University Ibn Tofail, Kenitra, Morocco.
    • Nabil Cheikhi essamri@gmail.com
    • Laamari Hlou Laboratory of Electrical Engineering and Energy Systems, Faculty of Sciences, University Ibn Tofail, Kenitra, Morocco.
    2014-09-12
    https://doi.org/10.14419/ijac.v2i2.3333

  • The study of the diffusion through a homogeneous dense film, covers practically and theoretically a fundamental interest. In pervaporation (membrane separation process) the diffusion is the limiting step in the operation of the transfer and thus directly influences the performance of the membrane. The knowledge of the diffusion coefficient of an aqueous solution in a membrane makes it possible to elucidate the mechanism of this elementary step of pervaporation. Several methods were used to determine the diffusivity of a compound through a dense membrane (differential permeation, kinetic of sorption).

    In this work, we tried to validate the method of the scattered packet. It is about a digital method, of cellular automaton, which produces really the process of diffusion through a membrane using the second law of Fick in which the diffusion coefficient is considered constant. Permeation flux data obtained by simulation allowed validating this method. By using the method of relaxation time and the method of maximum slope, can thus determine the coefficient of diffusion of diffusing species through the membrane.

    Keywords: Diffusivity, Membrane, Pervaporation, Scattered Packet Method.

  • References

    1. Neel J & Aptel P (1982), La pervaporation, Première partie: Principe de la technique Entropie, Vol.54, No. 104.
    2. Brun JY.P (1980), Procédés de séparation par mem-branes, Edition Masson.
    3. Long R.B (1965), Liquid permeation through plastic film, Ind. Eng. Chem, Vol.45, 53.
    4. Fels M &Huang Y. M (1971), Theoretical interpreta-tion of the effet of mixture composition on separation of liquid in polymers, Journal of Macromol. Sci. Phys, Vol.5, 89. http://dx.doi.org/10.1080/00222347108212522.
    5. Rautenbach R & Albercht R (1989), Membranes pro-cess, Edit. J. Wiley & sons.
    6. Stern S & Saxena Y (1980), Concentration-dependent transport of gases and vapors in glassy polymers, J. Memb. Sci, Vol. 7, 47-59. http://dx.doi.org/10.1016/S0376-7388 (00)83184-1.
    7. Mulder V & Smolders C (1984), on mehcanisme of separation mixtures by pervaporation: calculation of concentration profiles, J. Memb. Sci, Vol.17, 289. http://dx.doi.org/10.1016/S0376-7388 (00)83220-2.
    8. Mulder V, Franken a & Smolders C (1985), on mehca-nisme of separation mixtures by pervaporation: Experi-mental concentration profiles, J. Memb. Sci, Vol.23, 4. http://dx.doi.org/10.1016/S0376-7388 (00)83133-6.
    9. Barrer R.M (1941), Diffuson in and through solids Cambridge University, Press London.
    10. Palmai G & Olah K (1984), new differential permea-tio rate methode for determination of membrane transport parameteres of gases, J.Memb.Sci, Vol.21, pp. 161. http://dx.doi.org/10.1016/S0376-7388 (00)81552-5.
    11. Hlou L Thèse de doctorat (2003), Montpellier France.
    12. Hlou L Thèse de doctorat 3eme cycle (1985) Montpel-lier France.
    13. Vaissiere J.C (1986), Etude du régime de porteurs chauds dans le silicium de type P, Thèse de doctorat d'Etat, Montpellier France.
    14. Ziegel D.K, K.Frensdorft H & Blair D.E (1969), Measurement of hydrogen isotope transport in poly (vinyl fluoride) films by the permea-tion-rate method, J.Polym.Sci, Vol.7, No.5, 809.
    15. Uchtil P, Nguyen Q.T, Clement R, Grosse J & Essamri A(1996), Diffusion of acetic acid through PVA me-mebranes. Coupling effets. Polymer, Vol.37, 93-100. http://dx.doi.org/10.1016/0032-3861 (96)81603-X.

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  • How to Cite

    Essamri, A., El Gouri, R., Zouair, F., Cheikhi, N., & Hlou, L. (2014). Pervaporative transfer modeling through dense membranes validation of the scattered packet method. International Journal of Advanced Chemistry, 2(2), 143-147. https://doi.org/10.14419/ijac.v2i2.3333