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.


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)


Document Type

Article - Journal

Document Version


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© 2023 Elsevier, All rights reserved.

Publication Date

01 Mar 2006