CFD-PBE simulation of gas-phase hydrodynamics in a gas-liquid-solid combined loop reactor

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dc.contributor.authorQi, N.
dc.contributor.authorZhang, K.
dc.contributor.authorXu, G.
dc.contributor.authorYang, Y.
dc.contributor.authorZhang, H.
dc.date.issued2013
dc.description.abstractThe computational fluid dynamics (CFD)-population balance equations (PBE) coupled model is employed to investigate the hydrodynamics in a gas-slurry internal loop reactor with external slurry circulation. The predicted radial profiles of local gas holdup and bubble diameter are in good agreement with the corresponding experimental data. The spatio-temporal velocity profile of the gas phase reveals that the upward movement of gas is slowed down and the residence time of gas is prolonged by the downward momentum of the slurry. Introduction of the external slurry can greatly improve the uniformity of gas holdup distribution in the reactor, especially in the downcomer-tube action region. Moreover, the interaction between the downward slurry and upward gas can lead to small bubble size and high interfacial area as well as good mass and heat transfer. The above results suggest the function of external slurry circulation for the internal loop reactor and would be helpful for optimizing the design and scale up of reactors. © 2013 China University of Petroleum (Beijing) and Springer-Verlag Berlin Heidelberg.
dc.description.statementofresponsibilityQi Nana, Zhang Kai, Xu Gang, Yang Yongping and Zhang Hu
dc.identifier.citationPetroleum Science, 2013; 10(2):251-261
dc.identifier.doi10.1007/s12182-013-0274-5
dc.identifier.issn1672-5107
dc.identifier.issn1995-8226
dc.identifier.orcidZhang, H. [0000-0003-4178-6401]
dc.identifier.urihttp://hdl.handle.net/2440/78792
dc.language.isoen
dc.publisherChina University of Petroleum
dc.rights© China University of Petroleum (Beijing) and Springer-Verlag Berlin Heidelberg 2013
dc.source.urihttps://doi.org/10.1007/s12182-013-0274-5
dc.subjectCFD-PBE simulation
dc.subjectexternal slurry circulation
dc.subjectgas-liquid-solid
dc.subjecthydrodynamics, population balance model
dc.titleCFD-PBE simulation of gas-phase hydrodynamics in a gas-liquid-solid combined loop reactor
dc.typeJournal article
pubs.publication-statusPublished

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