Show simple item record

dc.contributor.authorYan, Wei-Cheng
dc.contributor.authorLuo, Zheng-Hong
dc.contributor.author罗正鸿
dc.contributor.authorLu, Ying-Hua
dc.contributor.author卢英华
dc.contributor.authorChen, Xiao-Dong
dc.contributor.author陈晓东
dc.date.accessioned2013-03-29T00:57:18Z
dc.date.available2013-03-29T00:57:18Z
dc.date.issued2012-06
dc.identifier.citationAICHE JOURNAL,2012,58(6):1717-1732zh_CN
dc.identifier.issn0001-1541
dc.identifier.urihttp://dx.doi.org/10.1002/aic.12705
dc.identifier.uriWOS:000303595500007
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/15412
dc.description.abstractAlthough the use of computational fluid dynamics (CFD) model coupled with population balance (CFD-PBM) is becoming a common approach for simulating gassolid flows in polydisperse fluidized bed polymerization reactors, a number of issues still remain. One major issue is the absence of modeling the growth of a single polymeric particle. In this work a polymeric multilayer model (PMLM) was applied to describe the growth of a single particle under the intraparticle transfer limitations. The PMLM was solved together with a PBM (i.e. PBM-PMLM) to predict the dynamic evolution of particle size distribution (PSD). In addition, a CFD model based on the Eulerian-Eulerian two-fluid model, coupled with PBM-PMLM (CFD-PBM-PMLM), has been implemented to describe the gassolid flow field in fluidized bed polymerization reactors. The CFD-PBM-PMLM model has been validated by comparing simulation results with some classical experimental data. Five cases including fluid dynamics coupled purely continuous PSD, pure particle growth, pure particle aggregation, pure particle breakage, and flow dynamics coupled with all the above factors were carried out to examine the model. The results showed that the CFD-PBM-PMLM model describes well the behavior of the gassolid flow fields in polydisperse fluidized bed polymerization reactors. The results also showed that the intraparticle mass transfer limitation is an important factor in affecting the reactor flow fields. (C) 2011 American Institute of Chemical Engineers AIChE J, 58: 17171732, 2012zh_CN
dc.description.sponsorshipNational Natural Science Foundation of China [21076171]; State-Key Laboratory of Chemical Engineering of Tsinghua University [SKL-ChE-10A03]; China National Petroleum Corporationzh_CN
dc.language.isoenzh_CN
dc.publisherWILEY-BLACKWELLzh_CN
dc.subjectfluidized bed polymerization reactorzh_CN
dc.subjectcomputational fluid dynamicszh_CN
dc.subjectpopulation balance modelzh_CN
dc.subjectpolymeric multilayer modelzh_CN
dc.titleA CFD-PBM-PMLM integrated model for the gas-solid flow fields in fluidized bed polymerization reactorszh_CN
dc.typeArticlezh_CN


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record