Reaction Kinetics, Mechanisms and Catalysis
Volume/Issue:
Volume 106: Issue 2
The influence of activation conditions on V–Mo based catalysts for benzene oxidation to maleic anhydride
Authors:
Ya Ping Chen Beijing Key Laboratory of Bioprocess, College of Chemical Engineering, Beijing University of Chemical Technology, Beisanhuan East Road 15, Chaoyang District, Beijing 100029, People's Republic of China
Beijing Research Institute of Chemical Industry, SINOPEC, Beisanhuan East Road 14, Chaoyang District, Beijing 100013, China

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Yi Xin Qu Beijing Key Laboratory of Bioprocess, College of Chemical Engineering, Beijing University of Chemical Technology, Beisanhuan East Road 15, Chaoyang District, Beijing 100029, People's Republic of China

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Ji Dong Wang Beijing Key Laboratory of Bioprocess, College of Chemical Engineering, Beijing University of Chemical Technology, Beisanhuan East Road 15, Chaoyang District, Beijing 100029, People's Republic of China

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Pages:
407–418
Online Publication Date:
05 Apr 2012
Publication Date:
01 Aug 2012
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s11144-012-0445-1
Keywords:
Benzene oxidation; Maleic anhydride; V–Mo based catalyst; Activation condition
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Abstract

The influence of the activation conditions on the catalytic performance and microstructure of supported V–Mo oxides used for benzene oxidation to maleic anhydride has been investigated. To activate the catalysts, two sets of activation conditions were tested. In condition I, the catalysts were activated in an atmosphere of air and benzene, which was similar to the industrial practice. In condition II, the catalysts were pre-activated in an atmosphere consisting of the gas products produced by the decomposition of the freshly prepared catalysts during activation process. The activity and selectivity of the catalysts were evaluated on a bench scale reactor as well as on a pilot reactor. The catalysts activated by condition II at the appropriate temperature showed a better performance: the selectivity and yield of MA were nearly 80 and 100 wt%, respectively. They are 5 % higher than those of the catalyst activated by condition I. The catalysts were characterized in terms of several techniques including isotherm adsorption, TG-DTG, XRD, SEM, EDX and XPS. The characterization results indicated that the microstructures of the catalysts were significantly influenced by the activation conditions. Based on the above information, the better performance exhibited by the catalyst activated by condition II are analyzed.

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Cover Reaction Kinetics, Mechanisms and Catalysis
Reaction Kinetics, Mechanisms and Catalysis
Print ISSN:
1878-5190
Online ISSN:
1878-5204

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Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation		 1974
Volumes
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Issues
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Founder Akadémiai Kiadó
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Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Springer Nature Switzerland AG
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ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)

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