Role of adsorption and diffusion pathways on the CO2/N2 separation performance of nanocomposite (B)-MFI-alumina membranes |
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Authors: | C.-H. Nicolas J. Sublet Y. Schuurman M. Pera-Titus |
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Affiliation: | Université de Lyon, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), UMR 5256 CNRS, Université Lyon 1, 2 Av. A. Einstein, 69626 Villeurbanne cedex, France |
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Abstract: | This work reports a detailed study of CO2 and N2 adsorption and diffusion pathways on MFI-alumina hollow fibres and their role on both pure and mixture CO2/N2 permeation. The hollow fibres have been prepared by pore-plugging hydrothermal synthesis starting from a clear solution with molar composition 1 SiO2: 0.45 TPAOH: 27·8H2O: xB(OH)3 (x=0–0.02), showing a final nanocomposite architecture. A comprehensive screening has been performed to select the most suitable model for describing CO2 and N2 adsorption and pure permeation in the (B)-MFI-alumina hollow fibres. The classical Ideal Adsorption Solution Theory (IAST) has been implemented to different permeation models to account for binary CO2/N2 permeation within the fibres. |
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Keywords: | MFI Membrane Boron Carbon dioxide IAST Diffusion |
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