Applied Catalysis A: General p. 109 - 117 (2015)
Update date:2022-08-17
Topics:
Andrushkevich, Tamara V.
Popova, Galina Y.
Chesalov, Yuriy A.
Ischenko, Evgeniya V.
Khramov, Mikhail I.
Kaichev, Vasily V.
MoVTeNbO catalysts were characterized with XRD, XPS, and FTIR techniques and tested in the ammoxidation of propane. Bismuth-modified MoVTeNbO catalysts showed a higher acrylonitrile yield than the base four-component system. The effect of the reaction mixture composition (C3H8, NH3 and O2) on selectivity towards different products was studied at propane conversion above 80%. The favorable effect of bismuth promoter on the selectivity towards acrylonitrile was explained by suppression of acrylonitrile transformation connected with decreasing acidity of the catalyst.
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