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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
- 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.
- Subjects :
- separation
Materials science
Xylene
Filtration and Separation
02 engineering and technology
Permeance
010402 general chemistry
01 natural sciences
Biochemistry
chemistry.chemical_compound
pore size distribution
Hydrothermal synthesis
Organic chemistry
General Materials Science
hollow fibre
Physical and Theoretical Chemistry
Zeolite
Porosity
Nanocomposite
nanocomposite
[CHIM.CATA]Chemical Sciences/Catalysis
021001 nanoscience & nanotechnology
[SDE.ES]Environmental Sciences/Environmental and Society
0104 chemical sciences
Membrane
chemistry
Chemical engineering
Hollow fiber membrane
0210 nano-technology
Subjects
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⟩