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Adsorption of Carbon Dioxide on High-Silica Zeolites with Different Framework Topology
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SYSNO ASEP 0356988 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Adsorption of Carbon Dioxide on High-Silica Zeolites with Different Framework Topology Author(s) Zukal, Arnošt (UFCH-W) RID
Mayerová, Jana (UFCH-W)
Kubů, Martin (UFCH-W) RIDSource Title Topics in Catalysis. - : Springer - ISSN 1022-5528
Roč. 53, 19-20 (2010), s. 1361-1366Number of pages 6 s. Language eng - English Country NL - Netherlands Keywords TNU-9 ; IM-5 ; SSZ-74 Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA203/08/0604 GA ČR - Czech Science Foundation (CSF) GD203/08/H032 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000283584800010 DOI 10.1007/s11244-010-9594-5 Annotation Adsorption isotherms of carbon dioxide were measured on six high-silica zeolites TNU-9, IM-5, SSZ-74, ferrierite, ZSM-5 and ZSM-11 comprising three-dimensional 10-ring (8-ring for ferrierite) at 273, 293, 313 and 333 K. Based on the known temperature dependence of CO2 adsorption, isosteric heats of adsorption were calculated. The obtained adsorption capacities and isosteric adsorption heats related to the amount of CO2 adsorbed have provided detailed insight into the carbon dioxide interaction with zeolites of different framework topology. The zeolites TNU-9 and ferrierite are characterized by pronounced energetic heterogeneity whereas due to the location of Na+ cations in the same positions the isosteric adsorption heats of CO2 adsorption on IM-5, ZSM-5 and ZSM-11 zeolites are rather constant for molecular ratio CO2/Na+ < 1. As IM-5 zeolite has a maximum adsorption capacity, it appears to have optimum properties for carbon dioxide separation. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
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