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Taylor bubble study of the influence of fluid dynamics on yield and selectivity in fast gas-liquid reactions

Citation Link: https://doi.org/10.15480/882.3509
Publikationstyp
Journal Article
Publikationsdatum
2021-03-11
Sprache
English
Author
Kexel, Felix 
Kameke, Alexandra von 
Tenhaus, Janina 
Hoffmann, Marko 
Schlüter, Michael 
Other Contributor
Mewes, Dieter 
Institut
Mehrphasenströmungen V-5 
DOI
10.15480/882.3509
TORE-URI
http://hdl.handle.net/11420/9428
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
Enthalten in
Chemie - Ingenieur - Technik 
Volume
93
Issue
5
Start Page
830
End Page
837
Citation
Chemie-Ingenieur-Technik 93 (5): 830-837 (2021-05-01)
Publisher DOI
10.1002/cite.202000241
Scopus ID
2-s2.0-85102273429
Publisher
Wiley-VCH Verl.
A consecutive competitive gas-liquid reaction is investigated using a Taylor bubble setup regarding the influence of fluid mixing in the bubble wake on yield and selectivity. The concentration fields behind a Taylor bubble are visualized and measured quantitatively with a novel time-resolved absorption imaging technique based on Beer Lamberts law and an integral selectivity is derived. In addition, the calculation of the local selectivity, often used in numerical approaches, is discussed and the existing experimental limits for its derivation are pointed out. Finally, an increase in selectivity of a competitive consecutive reaction for enhanced mixing is experimentally confirmed.
Schlagworte
Gas-liquid reaction
Mass transfer phenomena
Reactive bubbly flows
Selectivity
Taylor bubble
DDC Class
540: Chemie
600: Technik
Projekt(e)
SPP 1740: Einfluss lokaler Transportprozesse auf chemische Reaktionen in Blasenströmungen 
Projekt DEAL 
Funding Organisations
Deutsche Forschungsgemeinschaft (DFG) 
More Funding Information
The authors gratefully acknowledge the financial support provided by the German Research Foundation (DFG) within the Priority Program "Reactive Bubbly Flows", SPP 1740 (SCHL 617/12-2) and the working group of Prof. Klüfers (KL 624/18-2) for providing the chemical system used in this study.
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