The Compartmentalization of Conventional Bubble Columns by Perforated Trays Constitutes a Very Effective Method to Reduce the Liquid Back mixing. the Effect of Tray Design and Operating Conditions on the overall Liquid Mixing Was Studied in a Bench-Scale Trayed Bubble Column. the Extent of Liquid Back mixing in the Column Was Investigated in Light of Liquid-Phase Tracer Response Experiments. in Average, a Three-Fold Reduction in the Liquid Back mixing Was Achieved in the Trayed Column as Compared to the Column Without the Trays. Moreover, the Tray Open Area and the Superficial Liquid Velocity Were Found to Have the Strongest Effects on the Liquid Back mixing. the N-CSTR with Back mixing Model Was Found to Match the Experimental Tracer Response Curves Better Than the Axial Dispersion Model. © 2005 Elsevier Ltd. All Rights Reserved.
J. Alvaré and M. H. Al-Dahhan, "Liquid Phase Mixing in Trayed Bubble Column Reactors," Chemical Engineering Science, vol. 61, no. 6, pp. 1819 - 1835, Elsevier, Mar 2006.
The definitive version is available at https://doi.org/10.1016/j.ces.2005.10.015
Chemical and Biochemical Engineering
Keywords and Phrases
Axial dispersion model; Bubble column; Compartment models; Liquid backmixing; Multiphase reactor; Perforated trays
International Standard Serial Number (ISSN)
Article - Journal
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01 Mar 2006