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Nanocomposite MFI-alumina hollow fibre membranes prepared via pore-plugging synthesis: Influence of the porous structure of hollow fibres on the gas/vapour separation performance

Authors :
A. Giroir-Fendler
Michael O. Daramola
J. Sublet
Zhiyong Deng
Th. Schiestel
Andries J. Burger
Marc Pera-Titus
C.-H. Nicolas
Yanglong Guo
Publica
Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON)
Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)
Source :
Journal of Membrane Science, Journal of Membrane Science, Elsevier, 2010, 364 (1-2), pp.1-8. ⟨10.1016/j.memsci.2010.05.065⟩
Publication Year :
2010

Abstract

Deng, Z. Nicolas, C. -H. Daramola, M. O. Sublet, J. Schiestel, Th. Burger, A. J. Guo, Y. Giroir-Fendler, A. Pera-Titus, M.; International audience; One major drawback in the synthesis of zeolite membranes is the lack of reproducibility ascribed to the support quality. In this paper, a gas-liquid displacement technique was used prior to pore-plugging hydrothermal synthesis to evaluate the quality of hollow fibre supports in terms of pore size distribution of surface pores. Using these supports, four nanocomposite MFI-hollow fibre membrane families were identified, showing different gas/vapour separation performance. The effective MFI thickness of these membranes (0.6-1.2 mu m) was computed from pure N-2 and CO2 permeance using Maxwell-Stefan modelling, while their separation performance was evaluated in the separation of n-butane/H-2. CO2/N-2 and ternary xylene isomer mixtures. The MFI-alumina hollow fibres displaying the best quality corresponded to those synthesized using hollow fibres with surface pore size distributions centred at 0.2 mu m, suggesting more efficient pore plugging. Grain boundaries between nearby zeolite crystals only appear to play a role in the case of xylene isomer separation. (C) 2010 Elsevier B.V. All rights reserved.

Details

Language :
English
ISSN :
03767388
Database :
OpenAIRE
Journal :
Journal of Membrane Science, Journal of Membrane Science, Elsevier, 2010, 364 (1-2), pp.1-8. ⟨10.1016/j.memsci.2010.05.065⟩
Accession number :
edsair.doi.dedup.....f83f0e8ac8a5be60ff9ad2448f515950
Full Text :
https://doi.org/10.1016/j.memsci.2010.05.065⟩