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[1] Huang Kai, Lin Sheng, Zhou Jiancheng,. Numerical simulation of diffusion processfor oxidative dehydrogenation of butene to butadiene [J]. Journal of Southeast University (English Edition), 2015, 31 (4): 572-576. [doi:10.3969/j.issn.1003-7985.2015.04.024]
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Numerical simulation of diffusion processfor oxidative dehydrogenation of butene to butadiene()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
31
Issue:
2015 4
Page:
572-576
Research Field:
Chemistry and Chemical Engineering
Publishing date:
2015-12-30

Info

Title:
Numerical simulation of diffusion processfor oxidative dehydrogenation of butene to butadiene
Author(s):
Huang Kai Lin Sheng Zhou Jiancheng
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
Keywords:
multi-scale model mass and heat transfer particle diameter oxidative dehydrogenation of butene to butadiene single particle model transfer resistance
PACS:
TQ015.9
DOI:
10.3969/j.issn.1003-7985.2015.04.024
Abstract:
A comprehensive single particle model which includes the mesoscale and microscale models was developed to study the influence of particle diameter on mass and heat transfer occurring within a ferrite catalyst during the oxidative dehydrogenation of butene to butadiene process. The verified model can be used to investigate the influence of catalyst diameter on the flow distribution inside the particle. The simulation results demonstrate that the mass fraction gradients of all species, temperature gradient and pressure gradient increase with the increase of the particle diameter. It means that there is a high intraparticle transfer resistance and strong diffusion when applying the large catalysts. The external particle mass transfer resistance is nearly constant under different particle diameters so that the effect of particle diameter at external diffusion can be ignored. A large particle diameter can lead to a high surface temperature, which indicates the external heat transfer resistance. Moreover, the selectivity of reaction may be changed with a variety of particle diameters so that choosing appropriate particle size can enhance the production of butadiene and optimize the reaction process.

References:

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Memo

Memo:
Biography: Huang Kai(1973—), male, doctor, associate professor, huangk@seu.edu.cn.
Foundation items: The National Science Foundation of China(No.21576049, 21576050), the Fundamental Research Funds for the Central Universities(No. 2242014K10025).
Citation: Huang Kai, Lin Sheng, Zhou Jiancheng. Numerical simulation of diffusion process for oxidative dehydrogenation of butene to butadiene[J].Journal of Southeast University(English Edition), 2015, 31(4):572-576.[doi:10.3969/j.issn.1003-7985.2015.04.024]
Last Update: 2015-12-20