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Separation of CO2 and H2 with modified MFI membranes
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2007 (English)In: From Zeolites to Porous MOF Materials: The 40th Anniversary of International Zeolite Conference, Proceedings of the 15th International Zeolite Conference / [ed] Ruren Xu; Zi Gao; Jiesheng Chen; Wenfu Yan, Amsterdam: Elsevier, 2007, p. 975-980Conference paper, Published paper (Refereed)
Abstract [en]

MFI membranes with equal film thickness were grown on graded alumina supports and modified by ion exchange or impregnation. Single gas permeances of CO2 and H2 were measured for all membranes. Both impregnation and ion exchange had a significant effect on the permeation properties of the membranes. The single gas CO2/H2 permeance ratios were 0.57, 0.82, 1.7 and 2.2 for silicalite-1, NaZSM-5, BaZSM-5 and silicalite-1 impregnated with Ca(NO3)2 , respectively. Selected membranes were tested for separation of a mixture of 90 kPa CO2 and 90 kPa H2 in the temperature range 25-400 °C. The separation factors at 25 °C were 0.7, 2.0 and 4.1 for silicalite-1, BaZSM-5 and impregnated silicalite-1, respectively and decreased with increasing temperature. The results show that the separation factor can be enhanced significantly by impregnation, lowering of the Si/Al ratio or ion exchange.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2007. p. 975-980
Series
Studies in Surface Science and Catalysis, ISSN 0167-2991 ; 170:1
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-31048DOI: 10.1016/S0167-2991(07)80948-7Scopus ID: 2-s2.0-35348908342Local ID: 5178f420-7cad-11dc-b50c-000ea68e967bISBN: 978-0-444-53185-8 (print)OAI: oai:DiVA.org:ltu-31048DiVA, id: diva2:1004277
Conference
International Zeolite Conference : 12/08/2007 - 17/08/2007
Note
Validerad; 2007; 20071017 (linste)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Lindmark, JonasHedlund, Jonas

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