| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 39049 | Applied Catalysis A: General | 2015 | 9 Pages |
•MoVTeNb catalyst promoted by Bi was studied in propane ammoxidation.•Bi-modified MoVTeNb catalyst demonstrates increased selectivity to acrylonitrile.•The transformation of acrylonitrile is lowered due to decreased catalyst acidity.•The effect of propane, ammonia, and oxygen concentrations was investigated.
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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