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Preparation and evaluation of thin ZSM-5 membranes synthesized in the absence of organic template molecules
Luleå tekniska universitet.
Luleå tekniska universitet.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå tekniska universitet.
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2001 (English)In: Catalysis Today, ISSN 0920-5861, E-ISSN 1873-4308, Vol. 67, no 1-3, p. 109-119Article in journal (Refereed) Published
Abstract [en]

Porous α-alumina supports with a pore size of 100 nm were seeded with colloidal TPA-silicalite-1 crystals with a size of 120 nm. The seeded supports were calcined and treated in a synthesis solution free from organic template molecules to form ZSM-5 films on the supports. According to SEM images, the films were about 2 μm thick and no defects could be found on the as-synthesized membranes. Single gas permeation data was collected and good quality membranes (defined as having a non-detectable permeance of SF6 after drying at 100°C) were further evaluated using binary/ternary gas mixtures. The selectivity for n-butane/i-butane had a maximum value of 17.8 at 220°C. Water was selectively separated from a helium-diluted vaporized water/ethanol azeotrope with a maximum selectivity of 12.4.

Place, publisher, year, edition, pages
2001. Vol. 67, no 1-3, p. 109-119
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-9667Local ID: 85571530-6f82-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-9667DiVA, id: diva2:982605
Note

Validerad; 2001; 20061003 (bajo)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-02-06Bibliographically approved

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Hedlund, JonasSterte, Johan

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