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  Highly selective and stable propane dehydrogenation to propene over dispersed VOx-species under oxygen-free and oxygen-lean conditions

Ovitser, O., Schomäker, R., Kondratenko, E. V., Wolfram, T., & Trunschke, A. (2012). Highly selective and stable propane dehydrogenation to propene over dispersed VOx-species under oxygen-free and oxygen-lean conditions. Catalysis today, 192(1), 16-19. doi:10.1016/j.cattod.2012.01.034.

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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-F0B4-C Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-F0B5-A
Genre: Zeitschriftenartikel

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 Urheber:
Ovitser, Olga1, Autor
Schomäker, Reinhard1, Autor
Kondratenko, Evgenii V.2, Autor
Wolfram, Till3, Autor              
Trunschke, Annette3, Autor              
Affiliations:
1Technical University of Berlin, Straße des 17, Juni, 124-128, 8, D-10623, Berlin, Germany, escidoc:persistent22              
2Leibniz -Institute for Catalysis at the University of Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany, escidoc:persistent22              
3Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, escidoc:24023              

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Schlagwörter: Vanadia; Silica; Propane; Propene; Dehydrogenation
 Zusammenfassung: For the first time, we reported on a highly selective propane dehydrogenation to propene over SiO2- supported dispersed VOx species under oxygen-free and oxygen-lean conditions. Propene selectivity above 80% was achieved with propane conversions above 45% at 823–843 K. At operation under oxygenlean conditions, consecutive propene conversion to COx was significantly suppressed and propene was formed additionally via the highly selective non-oxidative dehydrogenation route over the same catalyst. Usage of SiO2 supports (MCM-41, SBA-15, SiO2) with no strong acid sites and co-feeding of small O2 amounts lead to very limited coke formation (<2 wt. % after 20 h on-stream operation). This results in only slight decrease in time-on-stream performance (ca. 10% of deactivation during 20 h).

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Sprache(n): eng - Englisch
 Datum: 2012-01-202012-03-092012-09-30
 Publikationsstatus: Im Druck publiziert
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.cattod.2012.01.034
 Art des Abschluß: -

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Titel: Catalysis today
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 192 (1) Artikelnummer: - Start- / Endseite: 16 - 19 Identifikator: ISSN: 0920-5861
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925564669