By Endre Nagy
With an in depth research of the mass delivery via membrane layers and its influence on diverse separation strategies, this publication offers a entire examine the theoretical and functional points of membrane delivery homes and services. easy equations for each membrane are supplied to foretell the mass move expense, the focus distribution, the convective speed, the separation potency, and the influence of chemical or biochemical response considering the heterogeneity of the membrane layer to aid higher comprehend the mechanisms of the separation approaches. The reader might be in a position to describe membrane separation procedures and the membrane reactors in addition to opt for the main compatible membrane constitution for separation and for membrane reactor. Containing targeted dialogue of the newest ends up in shipping procedures and separation methods, this publication is key for chemistry scholars and practitioners of chemical engineering and technique engineering.
- Detailed survey of the theoretical and functional features of each membrane method with particular equations
- Practical examples mentioned intimately with transparent steps
- Will help in making plans and education of extra effective membrane constitution separation
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Additional resources for Basic Equations of the Mass Transport through a Membrane Layer
M. (1939) Permeation, diffusion and solution of gases in organic polymer. Trans. Faraday Soc. 35, 629À643. S. (1968) Diffusion in Polymers. Academic Press, London. , and Deen, W. (2006) Hindrance factors for diffusion and convection in pores. Ind. Eng. Chem. Res. 45, 6953. M. (1987) Hindered transport of large molecules in liquid-filled pores. AIChE J. 33, 1409À1425. C. (1966) Ind. Eng. Chem. 58, 19. J. (2003) Transport Process and Separation Process Principles, 4th ed. Prentice Hall, Upper Saddle River.
J. Membr. Sci. 107, 1À21. A. (1998) TEOM: a unique technique for measuring adsorption properties. Light alkanes in silicalite-1. Ind. Eng. Chem. Res. 37, 1934À1942. 1 Introduction Molecular diffusion of molecular transport can be defined as the transfer or movement of individual molecules through a fluid by means of the random, Brownian, or thermal motion of the molecules. Molecules move at high speeds but travel extremely short distances before colliding with other molecules. The migration of individual molecules, therefore, is slow except at quite low molecular densities.
Knudsen diffusion 3. Viscous flux For a single gas permeation through a membrane, the following flux can be obtained from Eq. , 2001): 0 1 sﬃﬃﬃﬃﬃﬃﬃﬃﬃ e ^ 1 @ 8RT Bo A p rp 1 Ji 5 2 Ko ^ μ πMi RT ð1:106Þ Eq. 106) is in harmony with Eq. 50). 6 FloryÀHuggins Theory for Prediction of the Activity The FloryÀHuggins equation deals with molecules that are similar chemically, but differ greatly in length. The model is based on the idea that the chain elements arrange themselves randomly on a three-dimensional structure.
Basic Equations of the Mass Transport through a Membrane Layer by Endre Nagy