LAPSE

LAPSE:2019.0466
Published Article
LAPSE:2019.0466
Mass Transfer in Multiphasic Gas/Liquid/Liquid Systems. KLa Determination Using the Effectiveness-Number of Transfer Unit Method
Éric Dumont
April 8, 2019
The Effectiveness-Number of Transfer Unit method (ε-NTU method) was applied to determine the overall mass transfer coefficient, KLa, of operating gas-liquid absorbers treating Volatile Organic Compounds (VOCs). This method requires the knowledge of the operating conditions (gas flow rate, QG; liquid flow rate, QL; scrubber volume V), the measurement of gaseous concentrations at the inlet, CGin, and at the outlet, CGout, of the contactor (in order to determine the effectiveness of the absorber ε) and the calculation of the Henry coefficient of the VOC between the gas and the liquid phases (HVOC). Coupled with the “equivalent absorption capacity„ concept, the ε-NTU method was used to determine KLa of absorbers contacting a gas and a mixture of water and a Non Aqueous Phase, successfully. The method, validated from literature data for configurations countercurrent scrubbers and stirred tank reactors, could be used to simply determine the overall mass transfer coefficient of systems for which the standard KLa determination methods still remain non-reliable or inaccurate (viscous solvents, mixture of immiscible liquids, fermentation broths…).
Keywords
Absorption, effectiveness-NTU method, KLa, mass transfer, TPPB, VOC
Subject
Suggested Citation
Dumont ?. Mass Transfer in Multiphasic Gas/Liquid/Liquid Systems. KLa Determination Using the Effectiveness-Number of Transfer Unit Method. (2019). LAPSE:2019.0466
Author Affiliations
Dumont ?: UMR CNRS 6144 GEPEA, IMT Atlantique, Campus de Nantes, 4 rue Alfred Kastler, B.P. 20722, CEDEX 3 44307 Nantes, France
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Journal Name
Processes
Volume
6
Issue
9
Article Number
E156
Year
2018
Publication Date
2018-09-05
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr6090156, Publication Type: Journal Article
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LAPSE:2019.0466
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doi:10.3390/pr6090156
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Apr 8, 2019
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CC BY 4.0
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[v1] (Original Submission)
Apr 8, 2019
 
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Apr 8, 2019
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http://psecommunity.org/LAPSE:2019.0466
 
Original Submitter
Calvin Tsay
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