| Pera-Titus, Marc, Bausach, Marta, Llorens, Joan and Cunill, Fidel 2008. Preparation of inner-side tubular zeolite NaA membranes in a continuous flow system. Separation and Purification Technology 59 (2) , pp. 141-150. 10.1016/j.seppur.2007.05.038 |
Abstract
Zeolite NaA membranes were synthesized on the inner side of porous titania (rutile) asymmetric tubular supports in a flow system where the synthesis gel was circulated through the support with flow rates in the range 1.5–4 mL min−1 by the action of gravity. The syntheses were carried out hydrothermally at 358 K for 6–7 h either with or without previous brush-seeding of the supports. The membranes (10–20 μm in thickness) showed great ability to dehydrate ethanol/water mixtures (92:8, w/w) by pervaporation with selectivities and fluxes, respectively, up to 8500 and 1.2 kg m−2 h−1 at 323 K. The role of intercrystalline defects in the pervaporation performance of the synthesized membranes was also investigated.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Chemistry Research Institutes & Centres > Cardiff Catalysis Institute (CCI) |
| Publisher: | Elsevier |
| ISSN: | 1383-5866 |
| Date of Acceptance: | 31 May 2007 |
| Last Modified: | 13 Oct 2020 11:00 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/135396 |
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