Oxidative Dehydrogenation of n-Butane: Activity and Kinetics Over VOx/Al2O3 Catalysts
The catalytic activity of a VO x /Al 2 O 3 catalyst for the oxidative dehydrogenation of n -butane is investigated. The effects of reaction temperature, oxygen to n -butane ratio and GHSV on the catalytic performance are examined and optimized. Interestingly, this simple catalyst gives good conversi...
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Veröffentlicht in: | Topics in catalysis 2014-11, Vol.57 (17-20), p.1400-1406 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The catalytic activity of a VO
x
/Al
2
O
3
catalyst for the oxidative dehydrogenation of
n
-butane is investigated. The effects of reaction temperature, oxygen to
n
-butane ratio and GHSV on the catalytic performance are examined and optimized. Interestingly, this simple catalyst gives good conversion and selectivity. Butane was 22–24 %, and the selectivity to C
4
alkenes was 56 %, of which 20–22 % to 1,3-butadiene. Moreover, the catalyst is stable for at least 72 h on stream. Kinetic studies show that the activation barriers for the formation of (butene + butadiene), CO and CO
2
amount to 70.2, 65 and 81.3 kJ/mol respectively. |
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ISSN: | 1022-5528 1572-9028 |
DOI: | 10.1007/s11244-014-0317-1 |