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Optimization of synthesis procedures for structured PSA adsorbents
LuleƄ University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0003-1053-4623
Department of Chemical Engineering, Monash University.
Department of Chemical Engineering, Monash University.
2008 (English)In: Adsorption, ISSN 0929-5607, E-ISSN 1572-8757, Vol. 14, no 4-5, p. 687-693Article in journal (Refereed) Published
Abstract [en]

Structured adsorbents in the form of supported thin zeolite films may represent a competitive alternative to traditional zeolite adsorbents in form of beads or pellets used in PSA processes, due to the reduction of mass- and heat-transfer limitations typical of packed beds. Thin NaX films were grown by hydrothermal treatment using a clear solution on cordierite monoliths. Films grown by a multiple synthesis procedure were dense and uniform with a very small amount of sediments adjacent to the film, which may be an advantage in PSA applications. The CO2 adsorption capacity and the pressure drop for the supported films were compared to those of a packed NaX bed. Although the adsorption capacity of the column filled with the structured adsorbents was 67 times lower than when the column was filled with zeolite beads, the pressure drop was 100 times lower for the structured adsorbent. The adsorption capacity can be increased by increasing the film thickness or the cell density of the monoliths without increasing the pressure drop significantly, indicating the potential advantage of structured adsorbents in PSA processes. Further investigations are needed in order to prove this hypothesis.

Place, publisher, year, edition, pages
2008. Vol. 14, no 4-5, p. 687-693
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-11340DOI: 10.1007/s10450-008-9126-9ISI: 000259188800026Scopus ID: 2-s2.0-52149103179Local ID: a4961840-7379-11dd-a60f-000ea68e967bOAI: oai:DiVA.org:ltu-11340DiVA, id: diva2:984290
Note
Validerad; 2008; 20080826 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2021-10-15Bibliographically approved

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Mosca, AlessandraHedlund, Jonas

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