Direct ammoxidation of glycerol to nitriles using Mo/alumina catalysts

Redox phase unpromoted molybdenum catalysts with different Mo loadings (2.5% Mo/γ-Al 2 O 3 ; 5.0% Mo/γ-Al 2 O 3 ; 7.5% Mo/γ-Al 2 O 3 and 10.0% Mo/γ-Al 2 O 3 ) were prepared and characterized for the ammoxidation of glycerol to nitriles, such as acrylonitrile. The best catalyst (10.0% Mo/γ-Al 2 O 3 )...

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Bibliographic Details
Published in:Reaction kinetics, mechanisms and catalysis mechanisms and catalysis, 2022-02, Vol.135 (1), p.271-285
Main Authors: da Silva, Laio Damasceno, Santos, Ronaldo Costa, Silva, Jordan Gonzaga Andrade Batista, de Paiva Alves, Edson, Fréty, Roger Thomas François, Pontes, Luiz Antônio Magalhães
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Physical Chemistry
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Summary:Redox phase unpromoted molybdenum catalysts with different Mo loadings (2.5% Mo/γ-Al 2 O 3 ; 5.0% Mo/γ-Al 2 O 3 ; 7.5% Mo/γ-Al 2 O 3 and 10.0% Mo/γ-Al 2 O 3 ) were prepared and characterized for the ammoxidation of glycerol to nitriles, such as acrylonitrile. The best catalyst (10.0% Mo/γ-Al 2 O 3 ) obtained a yield of 26% in nitriles. The increase in the molybdenum content and its oxidation states along with the amount of weak/moderate acid sites on the support surface are key points for the optimization of the catalysts.
ISSN:1878-5190
1878-5204
DOI:10.1007/s11144-021-02111-8