Influence of Acid-Base Surface Characteristics of GA.sub.xSIBEA Zeolites on their Catalytic Properties in the Process of Oxidative Dehydrogenation of Propane to Propylene with Participation of CO.sub.2

It was found that Lewis acid sites formed by isolated Ga(III) atoms play a decisive role in the process of oxidative dehydrogenation of propane to propylene (with the participation of CO.sub.2) in the presence of the Ga.sub.xSiBEA catalysts. The presence of such sites is confirmed by XRD, .sup.71Ga...

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Bibliographic Details
Published in:Theoretical and experimental chemistry 2021-01, Vol.56 (6), p.387
Main Authors: Orlyk, S. M, Kantserova, M. R, Chedryk, V. I, Kyriienko, P. I, Balakin, D. Yu, Millot, Y, Dzwigaj, S
Format: Article
Language:English
Subjects:
Dehydrogenation
Propane
Propylene
Zeolites
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Summary:It was found that Lewis acid sites formed by isolated Ga(III) atoms play a decisive role in the process of oxidative dehydrogenation of propane to propylene (with the participation of CO.sub.2) in the presence of the Ga.sub.xSiBEA catalysts. The presence of such sites is confirmed by XRD, .sup.71Ga NMR, FTIR, and NH.sub.3-TPD. On the most active catalyst Ga.sub.4.0 SiBEA a propylene yield of 40% is achieved. The selectivity of propylene formation is 70-80% on the Ga.sub.1,0SiBEA catalyst.
ISSN:0040-5760
DOI:10.1007/s11237-021-09667-5