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Novel gas holdup correlation for slurry bubble column reactors operated in the homogeneous regime

Götz, Manuel 1,2; Lefebvre, Jonathan 2; Mörs, Friedemann 1,2; Ortloff, Felix 1,2; Reimert, Rainer 2; Bajohr, Siegfried 2; Kolb, Thomas 1,2
1 DVGW - Technologiezentrum Wasser (TZW), Karlsruher Institut für Technologie (KIT)
2 Engler-Bunte-Institut (EBI), Karlsruher Institut für Technologie (KIT)


The gas holdup is an important parameter for the design of slurry bubble columns. However, there is no correlation in literature to calculate the gas holdup of such reactors for industrially relevant conditions if the reactor is operated in the homogeneous regime. In this article, a novel correlation for calculating the gas holdup in the homogeneous and in the pseudo-homogeneous regimes is proposed. The correlation takes the relevant parameters into account: gas, liquid, and solid properties, sparger design, reactor diameter, and gas velocity. The correlation is also applicable for systems operated at elevated pressure and temperature. The correlation is based on 1199 data points, and it was developed by using the method of least squares. About two thirds of the data used were taken from literature (more than 20 research papers). The data from literature were carefully checked for confidence before using them for the correlation. > 90 % of the data points are covered by the new correlation with a relative error of less than 30 %, the standard deviation is 17.8 % and the averaged relative error is 9.5 %. Finally, the correlation was successfully validated with measurements which were not used to fit the correlation. ... mehr

DOI: 10.1016/j.cej.2016.09.101
Zitationen: 41
Web of Science
Zitationen: 36
Zitationen: 41
Zugehörige Institution(en) am KIT Engler-Bunte-Institut (EBI)
Institut für Technische Chemie (ITC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 0300-9467, 1385-8947, 1873-3212, 1873-5541
KITopen-ID: 1000060940
HGF-Programm 34.14.02 (POF III, LK 01) Vergasung
Erschienen in The chemical engineering journal
Verlag Elsevier
Band 308
Seiten 1209-1224
Schlagwörter Bubble column; Slurry bubble column reactor; Gas holdup correlation; Homogeneous regime; Solids’ influence; Hydrodynamics
Nachgewiesen in Scopus
Web of Science
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