Simulation of membrane separations using a modified Maxwell-Stefan model

Brito, Paulo; Gando-Ferreira, Licínio M.; Portugal, António

http://hdl.handle.net/10198/1319

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Authors

Brito, Paulo

Gando-Ferreira, Licínio M.

Portugal, António

Abstract(s)

A modified Maxwell-Stefan model, which considers both the concentration polarization and the transport through the membrane, is tested for the simulation of Dextran-98000 aqueous solutions filtration. The model is able to successfully simulate experimental data in the high rejection/low flux region, but does replicate the observed rejection drop/pressure build-up which occurs for increased fluxes, which may be due to limitations of the model itself.

Keywords

Modeling Ultra-filtration Transport phenomena Apparent rejection Adaptive methods

URI

http://hdl.handle.net/10198/1319

Citation

Brito, Paulo; Gando-Ferreira, Licínio M.; Portugal, António (2008). Simulation of membrane separations using a modified Maxwell-Stefan model. In 10th International Chemical and Biological Engineering Conference - CHEMPOR 2008. Braga. p. 720-725. ISBN 978-972-97810-3-2