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A Uniformly Oriented MFI Membrane for Improved CO2 Separation
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0002-7477-4960
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.ORCID iD: 0000-0003-2459-7932
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.ORCID iD: 0000-0002-4755-5754
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2014 (English)In: Angewandte Chemie, ISSN 0044-8249, Vol. 126, no 13, p. 3560-3563Article in journal (Refereed) Published
Abstract [en]

Membrane separation of CO2 from natural gas, biogas, synthesis gas, and flu gas is a simple and energy-efficient alternative to other separation techniques. But results for CO2-selective permeance have always been achieved by randomly oriented and thick zeolite membranes. Thin, oriented membranes have great potential to realize high-flux and high-selectivity separation of mixtures at low energy cost. We now report a facile method for preparing silica MFI membranes in fluoride media on a graded alumina support. In the resulting membrane straight channels are uniformly vertically aligned and the membrane has a thickness of 0.5 μm. The membrane showed a separation selectivity of 109 for CO2/H2 mixtures and a CO2 permeance of 51×10−7 mol m−2 s−1 Pa−1 at −35 °C, making it promising for practical CO2 separation from mixtures

Place, publisher, year, edition, pages
2014. Vol. 126, no 13, p. 3560-3563
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-13946DOI: 10.1002/ange.201311324Local ID: d43b3565-7127-4875-b266-b31760c069ddOAI: oai:DiVA.org:ltu-13946DiVA, id: diva2:986899
Note
Validerad; 2014; 20140304 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-04-04Bibliographically approved

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Zhou, MingKorelskiy, DanilYe, PengchengGrahn, MattiasHedlund, Jonas

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