Coke location in microporous and hierarchical ZSM-5 and the impact on the MTH reaction
Schmidt F, Hoffmann C, Giordanino F, Bordiga S, Simon P, Carrillo-Cabrera W, Kaskel S (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 307
Pages Range: 238-245
DOI: 10.1016/j.jcat.2013.07.020
Abstract
The deactivation and reactivation of microporous and hierarchical ZSM-5 zeolites have been studied in the methanol-to-hydrocarbon (MTH) reaction. The hierarchical ZSM-5 was synthesized via the desilication reassembly technique using cetyltrimethylammonium bromide as a surfactant. The catalysts differed significantly in the catalytic behavior after the reactivation procedure. This is ascribed to a different coke location in the deactivated catalysts arising from the difference in the porosity. The microporous ZSM-5 showed a coke gradient over the particle with a stronger accumulation of carbonaceous species in the outer particle layers, whereas a homogeneous coke distribution was observed for the deactivated hierarchical ZSM-5. Due to the diverging coke distribution, the irreversible damage of the zeolitic structure caused by reactivation differs for both catalysts. This fact is assumed to be the reason for the different deactivation/reactivation behaviors of these two zeolitic systems. © 2013 Elsevier Inc. All rights reserved.
Involved external institutions
Technische Universität Dresden
Germany (DE)
University of Turin / Università degli Studi di Torino (UNITO)
Italy (IT)
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Germany (DE)
University of Turin / Università degli Studi di Torino (UNITO)
Italy (IT)
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
How to cite
APA:
Schmidt, F., Hoffmann, C., Giordanino, F., Bordiga, S., Simon, P., Carrillo-Cabrera, W., & Kaskel, S. (2013). Coke location in microporous and hierarchical ZSM-5 and the impact on the MTH reaction. Journal of Catalysis, 307, 238-245. https://doi.org/10.1016/j.jcat.2013.07.020
MLA:
Schmidt, Franz, et al. "Coke location in microporous and hierarchical ZSM-5 and the impact on the MTH reaction." Journal of Catalysis 307 (2013): 238-245.
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