Mass transfer measurements in absorption and desorption: Determination of mass transfer parameters

•Computer-aided mass transfer parameter determination method.•Sensitivity analysis identifies and evaluates critical operational variables.•Detailed case study exemplifies the pathway of parameter determination.•Set of experimental data to compare mass transfer measurements of different authors. The...

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Bibliographic Details
Published in:Chemical engineering research & design 2015-12, Vol.104, p.440-452
Main Authors: Kunze, Anna-Katharina, Lutze, Philip, Kopatschek, Manuela, Maćkowiak, Jan F., Maćkowiak, Jerzy, Grünewald, Marcus, Górak, Andrzej
Format: Article
Language:English
Subjects:
Absorption
Chemical industries
Design analysis
Design engineering
Desorption
Effective interfacial area
Mass transfer
Mass transfer coefficients
Mathematical models
Pilot plants
Scale (ratio)
Sensitivity analysis
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Summary:•Computer-aided mass transfer parameter determination method.•Sensitivity analysis identifies and evaluates critical operational variables.•Detailed case study exemplifies the pathway of parameter determination.•Set of experimental data to compare mass transfer measurements of different authors. The application of rate-based models incorporating mass and energy transfer phenomena for the design of absorption columns is common practice in chemical industry. These models rely on the high accuracy of mass transfer parameters, i.e. the effective interfacial area aeff as well as the gas and the liquid side mass transfer coefficients kG and kL for gas and liquid phase, which result from experiments at meaningful scale (pilot plant scale). These parameters have a significant impact on the design of the absorption column. Currently, the uncertainty in these mass transfer parameters results in the addition of large safety factors. Hence, a general method comprising a standardised measurement procedure and a standardised computer-aided determination of such parameters has been developed. Physical properties determination together with a sensitivity analysis resulting in an identification and evaluation of critical operational variables has been performed to evaluate their influence on the determination of mass transfer parameters. Within this paper the computer-aided parameter determination method is described in detail. Furthermore, the method is exemplified by a case study.
ISSN:0263-8762
1744-3563
DOI:10.1016/j.cherd.2015.08.025