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Propane ammoxidation on Bi promoted MoVTeNbOx oxide catalysts: Effect of reaction mixture composition

Paper ID Volume ID Publish Year Pages File Format Full-Text
39049 45802 2015 9 PDF Available
Title
Propane ammoxidation on Bi promoted MoVTeNbOx oxide catalysts: Effect of reaction mixture composition
Abstract

•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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Keywords
MoVTeNb oxide catalyst; Bi-doped; Ammoxidation; Propane; Acrylonitrile.
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Propane ammoxidation on Bi promoted MoVTeNbOx oxide catalysts: Effect of reaction mixture composition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 506, 5 October 2015, Pages 109–117
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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