A study of silicalite-1 and Al-ZSM-5 membrane synthesis on stainless steel supports

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Mabande G, Pradhan G, Schwieger W, Hanebuth M, Dittmeyer R, Selvam T, Zampieri A, Baser HH, Herrmann R
Zeitschrift: Microporous and Mesoporous Materials
Verlag: Elsevier
Jahr der Veröffentlichung: 2004
Band: 75
Seitenbereich: 209-220
ISSN: 1387-1811


Abstract


Silicalite-1 and Al-ZSM-5 membranes were prepared by combining one-step in situ seeding with one secondary membrane growth step. For membranes prepared under similar conditions, Al-ZSM-5 membrane growth was found to be considerably slower than Silicalite-1 growth leading to a significantly higher preferred axial orientation of the Silicalite-1 membranes. H(2)/SF(6) single gas permeation measurements revealed that for both membrane types a correlation existed between the H(2)/SF(6) ideal perm-selectivities and the zeolite layer thickness. Above a certain thickness the defect density is independent of layer thickness. However, Al-ZSM-5 membrane perm-selectivities were higher, despite lower membrane thicknesses and comparable hydrogen permeation rates. For example, room temperature ideal H(2)/SF(6) perm-selectivities of about 136 and 65 were measured for a 7.5 mum thick Al-ZSM-5 and a 45 mum thick Silicalite-1 membrane, respectively. Comparison to literature data revealed that the membranes were of good quality. Moreover, reproducibility of the membrane synthesis procedure proved to be good. (C) 2004 Elsevier Inc. All rights reserved.



FAU-Autoren / FAU-Herausgeber

Baser, Hasan-Hüseyin Dr.-Ing.
Professur für Technische Chemie (Reaktionstechnik)
Schwieger, Wilhelm Prof. Dr.
Professur für Technische Chemie (Reaktionstechnik)


Zitierweisen

APA:
Mabande, G., Pradhan, G., Schwieger, W., Hanebuth, M., Dittmeyer, R., Selvam, T.,... Herrmann, R. (2004). A study of silicalite-1 and Al-ZSM-5 membrane synthesis on stainless steel supports. Microporous and Mesoporous Materials, 75, 209-220. https://dx.doi.org/10.1016/j.micromeso.2004.07.009

MLA:
Mabande, Godwin, et al. "A study of silicalite-1 and Al-ZSM-5 membrane synthesis on stainless steel supports." Microporous and Mesoporous Materials 75 (2004): 209-220.

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