A study of gas–liquid mass transfer in reactors with two disk turbines

The placement of two Rushton disk turbines (DTs) in reactors for gas–liquid mass transfer has been studied in this work, and the correct position for each DT has been proposed. It is found that the volumetric mass transfer parameter k L a obtained with the correct placement of the two DTs can be sub...

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Bibliographic Details
Published inChemical engineering science Vol. 53; no. 5; pp. 1089 - 1095
Main Authors Wu, Hua, Arcella, Vincenzo, Malavasi, Massimo
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.01.1998
Elsevier
Subjects
Applied sciences
Chemical engineering
disk turbine
Exact sciences and technology
gas–liquid
mass transfer
Mixing
Reactor
sparger aeration
disk turbine
sparger aeration
Reactor
mass transfer
gas–liquid
Aeration
Design
Gas liquid
Energy consumption
Positioning
Stirred vessel
Multiple system
Stirring
Turbine impeller
Volumetric mass transfer coefficient
Experimental study
Mass transfer
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Summary:The placement of two Rushton disk turbines (DTs) in reactors for gas–liquid mass transfer has been studied in this work, and the correct position for each DT has been proposed. It is found that the volumetric mass transfer parameter k L a obtained with the correct placement of the two DTs can be substantially greater than that with the commonly adopted placement. The influence of the agitator positions on the correlation for k L a is also investigated, and it is shown that the dependence of k L a on power input is determined mainly by the upper DT position, while positions of both lower and upper DTs are important for the dependence of k L a on the superficial velocity.
ISSN:0009-2509
1873-4405
DOI:10.1016/S0009-2509(97)00380-1