학술논문
Transient kinetic modelling of propane dehydrogenation over a Pt-Sn-K/Al.sub.2O.sub.3 catalyst
Document Type
Report
Author
Source
Applied Catalysis A, General. Oct 31, 2008, Vol. 349 Issue 1-2, p156, 9 p.
Subject
Language
English
ISSN
0926-860X
Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.apcata.2008.07.025 Byline: M.P. Lobera, C. Tellez, J. Herguido, M. Menendez Keywords: Reaction mechanism; Propane dehydrogenation; Pt-Sn-K/Al.sub.2O.sub.3 catalyst; Catalyst deactivation; Coke formation rates; Reactor simulation Abstract: A complete kinetic model of propane dehydrogenation to produce propene over a Pt-Sn-K/Al.sub.2O.sub.3 catalyst was obtained. This has been investigated over the temperature range of 460-540[degrees]C at atmospheric pressure. A Langmuir-Hinshelwood mechanism provides the best fit for propane dehydrogenation, while a monolayer-multilayer mechanism is proposed for modelling the coke formation. In addition, the reaction rate of coke formation and its influence on catalyst deactivation and subsequent regeneration have been studied. Finally, a suitable mathematical model is developed for simulating the process behaviour in a two-zone fluidized bed reactor (TZFBR).a* Author Affiliation: Aragon Institute for Engineering Research (I3A), University of Zaragoza, 50009 Zaragoza, Spain Article History: Received 3 April 2008; Revised 30 June 2008; Accepted 21 July 2008