Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/67453
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dc.titleHydrodynamics and mass transfer studies in a novel external-loop airlift reactor
dc.contributor.authorGuo, Y.X.
dc.contributor.authorRathor, M.N.
dc.contributor.authorTi, H.C.
dc.date.accessioned2014-06-17T10:01:30Z
dc.date.available2014-06-17T10:01:30Z
dc.date.issued1997-06-30
dc.identifier.citationGuo, Y.X., Rathor, M.N., Ti, H.C. (1997-06-30). Hydrodynamics and mass transfer studies in a novel external-loop airlift reactor. Chemical Engineering Journal 67 (3) : 205-214. ScholarBank@NUS Repository.
dc.identifier.issn13858947
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/67453
dc.description.abstractA novel external-loop airlift reactor in combination with a fluidized bed was proposed in this work. The gas sparger located in the upper section of the riser allowed the heavy solid particles to fluidize in the lower section of the riser, and also separated the gas-liquid and solid-liquid contact. The reactor, with high degree of design flexibility, is expected to handle fragile cells which are shear-sensitive. Studies were carried out using three different types of solid particles with three different solid loading in the reactor. The solids-free standard external-loop airlift reactors with different H/D ratio were also investigated for comparison. The gas holdup, liquid circulation velocity, liquid mixing time, and the fluidized-bed expansion were studied. Several models reported were applied to the hydrodynamic performance of the reactor. The oxygen transfer in the liquid was also measured and the k(L)a(L) value was obtained using a dynamic technique. Empirical correlations describing the proposed reactor are presented in this paper and very good agreement could he found.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S1385-8947(97)00043-0
dc.sourceScopus
dc.subjectExternal-loop airlift reactor
dc.subjectFluidized bed
dc.subjectGas holdup
dc.subjectHydrodynamic
dc.subjectLiquid circulation velocity
dc.subjectMass transfer
dc.subjectMixing time
dc.subjectVolumetric oxygen transfer coefficient
dc.typeArticle
dc.contributor.departmentCHEMICAL ENGINEERING
dc.description.sourcetitleChemical Engineering Journal
dc.description.volume67
dc.description.issue3
dc.description.page205-214
dc.description.codenCMEJA
dc.identifier.isiutA1997YC52100007
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