Oxydehydrogenation of ethane and propane over alkaline metal modified Fe-ZSM-5 zeolites
Authors:
- Jolanta Kowalska-Kuś,
- Agnieszka Mariola Held,
- Krystyna Nowińska
Abstract
Iron modified zeolites of MFI structure, calcined at 873 and 1173 K, were doped with sodium cations in amounts corresponding to 1/4, 1/2, 3/4 and to the total number of acidic centres, estimated from TPD of ammonia. Sodium modified Fe-ZSM-5(900) gradually lost their oxidative activity with an increase in the concentration of alkaline cations, while the activity of Na/Fe-ZSM-5(600) changed slightly and diminished considerably only after significant removal of acidic centres. The results of propane ODH reaction, performed at different contact times over alkaline free and alkaline modified Fe-ZSM-5 indicated, that oxydehydrogenation and cracking reactions on the samples calcined at 1173 K occurred as consecutive reactions, while in the presence of catalysts activated at 873 K, and characterised by strong acidic centres, both reactions occurred simultaneously. © 2010 Springer Science+Business Media, LLC.
- Record ID
- UAM4d1b2e932a6b46a191a0472ca48ee356
- Author
- Journal series
- Catalysis Letters, ISSN 1011-372X
- Issue year
- 2010
- Vol
- 136
- Pages
- 199-208
- ASJC Classification
- ;
- DOI
- DOI:10.1007/s10562-010-0328-x Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 0
- Score source
- journalList
- Publication indicators
- = 12; = 13; : 2010 = 0.781; : 2010 (2 years) = 1.907 - 2010 (5 years) =1.974
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- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM4d1b2e932a6b46a191a0472ca48ee356/
- URN
urn:amu-prod:UAM4d1b2e932a6b46a191a0472ca48ee356
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.