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Three-Dimensional CFD-PBM Coupled Model of the Temperature Fields in Fluidized-Bed Polymerization Reactors

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Three-Dimensional CFD-PBM Coupled Model of the Temperature Fields in Fluidized-Bed Polymerization Reactors.htm (404bytes)
Date
2011-03-10
Author
Chen, Xi-Zhong
Luo, Zheng-Hong
罗正鸿
Yan, Wei-Cheng
Lu, Ying-Hua
卢英华
Ng, I-Son
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  • 化学化工-已发表论文 [14469]
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Abstract
A three-dimensional (3-D) computational fluid dynamics model, coupled with population balance (CFD-PBM), was developed to describe the gas-solid two-phase flow in fluidized-bed polymerization reactors. The model considered the Eulerian-Eulerian two-fluid model, the kinetic theory of granular flow, the population balance, and heat exchange equations. First, the model was validated by comparing simulation results with the classical calculated data. The entire temperature fields in the reactor were also obtained numerically. Furthermore, two case studies, involving constant solid particle size and constant polymerization heat or evolving particle-size distribution, polymerization kinetics, and polymerization heat, were designed to identify the model. The results showed that the calculated results in the second case were in good agreement with the reality. Finally, the model of the second case was used to investigate the influences of operational conditions on the temperature field. (C) 2011 American Institute of Chemical Engineers AIChE J, 57: 3351-3366, 2011
Citation
AICHE JOURNAL,2011,57(12):3351-3366
URI
http://dx.doi.org/doi:10.1002/aic.12548
https://dspace.xmu.edu.cn/handle/2288/11446
WOS:000297177100010

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