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dc.contributor.authorChen, Xi-Zhong
dc.contributor.authorShi, De-Pan
dc.contributor.authorGao, Xi
dc.contributor.authorLuo, Zheng-Hong
dc.contributor.author罗正鸿
dc.date.accessioned2012-03-20T06:37:02Z
dc.date.available2012-03-20T06:37:02Z
dc.date.issued2010-10-02
dc.identifier.citationPOWDER TECHNOLOGY,2011,205(1-3):276-288zh_CN
dc.identifier.issn0032-5910
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.powtec.2010.09.039
dc.identifier.uriWOS:000284787900034
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/11809
dc.description.abstractA Eulerian-Eulerian model incorporating the kinetic theory of granular flow was applied to describe the gas-solid two-phase flow in fluidized bed polymerization reactors. The model parameters were examined, and the model was validated by comparing the simulation result with the classical calculated data. The effects of distributor shape, solid particle size, operational gas velocity and feed manner on the flow behavior in the reactor were also investigated numerically. The results show that with the increase of solid particle diameter, the bubble numbers decrease and the bubble size increases, resulting in a smaller bed expansion ratio. Bed expansion ratio increases with increasing the gas inlet velocity. Moreover, the final fluidized qualities are almost the same for the plane distributor case and the triangle distributor case. There exists a tempestuous wiggle from side to side in the bed at the continuous feed manner, which could not be obtained at a batch feed manner. (C) 2010 Elsevier B.V. All rights reserved.zh_CN
dc.description.sponsorshipNational Natural Science Foundation of China[20406016, 21076171]; China National Petroleum Corporationzh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE SAzh_CN
dc.subjectPolyolefinzh_CN
dc.subjectFluidized bed reactorzh_CN
dc.subjectCFDzh_CN
dc.subjectModel and operation parameterszh_CN
dc.subjectFlow characteristicszh_CN
dc.titleA fundamental CFD study of the gas-solid flow field in fluidized bed polymerization reactorszh_CN
dc.typeArticlezh_CN


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