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Preparation of Zeolite ZSM-5 Membranes by In-Situ Crystallization on Porous α-Al_2O_3

Yan, Yushan and Davis, Mark E. and Gavalas, George R. (1995) Preparation of Zeolite ZSM-5 Membranes by In-Situ Crystallization on Porous α-Al_2O_3. Industrial & Engineering Chemistry Research, 34 (5). pp. 1652-1661. ISSN 0888-5885. doi:10.1021/ie00044a018.

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Zeolite ZSM-5 membranes were grown on porous α-Al_2O_3 disks by in-situ hydrothermal synthesis at 175 "C. The zeolite layers were formed on the bottom face of disks placed horizontally near the air-liquid interface of clear synthesis solutions. Extensive experimentation was carried out to find compositions that gave continuous polycrystalline films. The films grown with the optimized composition were about 10 µm thick and consisted of well-intergrown crystals of about 2 µm size. Pure gas permeation measurements of the most successful preparation yielded hydrogen:isobutane and n-butane:isobutane ratios of 151 and 18 at room temperature and 54 and 31 at 185 °C, respectively.

Item Type:Article
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Davis, Mark E.0000-0001-8294-1477
Gavalas, George R.0000-0003-1468-6835
Additional Information:© 1995 American Chemical Society. Received for review November 1, 1994. Accepted March 7, 1995. This work was funded by NSF Grant No. CTS-9114829.
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Issue or Number:5
Record Number:CaltechAUTHORS:20151007-090427013
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Official Citation:Preparation of Zeolite ZSM-5 Membranes by In-Situ Crystallization on Porous .alpha.-Al2O3 Yushan Yan, Mark E. Davis, and George R. Gavalas Industrial & Engineering Chemistry Research 1995 34 (5), 1652-1661 DOI: 10.1021/ie00044a018
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60849
Deposited By: George Porter
Deposited On:07 Oct 2015 17:21
Last Modified:10 Nov 2021 22:40

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