Lai, Re and Gavalas, George R. (2000) ZSM-5 membrane synthesis with organic-free mixtures. Microporous and Mesoporous Materials, 38 (2-3). pp. 239-245. ISSN 1387-1811. doi:10.1016/S1387-1811(00)00143-8. https://resolver.caltech.edu/CaltechAUTHORS:20151006-150213210
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Abstract
Preparation of supported ZSM-5 membranes using a TPA-free synthesis gel was investigated. After exploring the effect of reaction mixture the composition SiO_2:0.0125Al_2O_3:0.2675Na_2O:46H_2O was selected for membrane synthesis. Membranes were prepared by hydrothermal reaction on asymmetric α-Al_2O_3 tubular supports. The membranes were characterized by scanning electron microscopy, EDS, X-ray diffraction and Ar and N_2 adsorption. Permeation measurements with single gas and mixtures yielded selectivities for H_2 over n-butane above 104 and those for O2 over N_2 were 9–10. Permeation was strongly activated with the activation energies increasing sharply with molecular sizes.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2000 Elsevier. Received 7 October 1999; accepted 22 December 1999. This study was funded by a grant from NSF and by Chevron Research and Technology Co. | |||||||||
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| Subject Keywords: | Zeolite membrane; ZSM-5; MFI; Template free; Gas separation | |||||||||
| Issue or Number: | 2-3 | |||||||||
| DOI: | 10.1016/S1387-1811(00)00143-8 | |||||||||
| Record Number: | CaltechAUTHORS:20151006-150213210 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20151006-150213210 | |||||||||
| Official Citation: | Re Lai, George R. Gavalas, ZSM-5 membrane synthesis with organic-free mixtures, Microporous and Mesoporous Materials, Volume 38, Issues 2–3, 1 August 2000, Pages 239-245, ISSN 1387-1811, http://dx.doi.org/10.1016/S1387-1811(00)00143-8. (http://www.sciencedirect.com/science/article/pii/S1387181100001438) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 60828 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 07 Oct 2015 13:32 | |||||||||
| Last Modified: | 10 Nov 2021 22:40 |
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