Stable Cr-MFI Catalysts for the Nonoxidative Dehydrogenation of Ethane: Catalytic Performance and Nature of the Active Sites
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2022-03-16
Type
ArticleAuthors
De, Sudipta
Ould-Chikh, Samy

Aguilar, Antonio
Hazemann, Jean-Louis
Zitolo, Andrea

Ramirez, Adrian
Telalovic, Selvedin
Gascon, Jorge

KAUST Department
KAUST Catalysis Center (KCC)KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
Chemical Engineering Program
Physical Science and Engineering (PSE) Division
Biological and Environmental Sciences and Engineering (BESE) Division
Date
2021-03-16Embargo End Date
2022-03-16Submitted Date
2020-11-25Permanent link to this record
http://hdl.handle.net/10754/668191
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The nonoxidative catalytic dehydrogenation of ethane allows the production of ethylene at lower temperatures than those applied in steam crackers. This, however, requires stable catalysts that minimize coke production. Here, we report a single-component, promoter-free, low-loading, Cr-based catalyst exhibiting high activity, long-term stability, and improved regeneration properties for the direct dehydrogenation of ethane to ethylene. According to our detailed operando X-ray absorption spectroscopic analysis, the use of all-silica MFI zeolite as support promotes the stabilization of CrII(−O–Si≡)2 species with high coke resistance, even when the dehydrogenation is carried out under high ethane partial pressures (1.5 bar).Citation
De, S., Ould-Chikh, S., Aguilar, A., Hazemann, J.-L., Zitolo, A., Ramirez, A., … Gascon, J. (2021). Stable Cr-MFI Catalysts for the Nonoxidative Dehydrogenation of Ethane: Catalytic Performance and Nature of the Active Sites. ACS Catalysis, 3988–3995. doi:10.1021/acscatal.0c05170Publisher
American Chemical Society (ACS)Journal
ACS CatalysisAdditional Links
https://pubs.acs.org/doi/10.1021/acscatal.0c05170ae974a485f413a2113503eed53cd6c53
10.1021/acscatal.0c05170
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Except where otherwise noted, this item's license is described as This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Catalysis, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acscatal.0c05170.