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Publisher DOI: 10.1002/cite.202000241
Title: Taylor bubble study of the influence of fluid dynamics on yield and selectivity in fast gas-liquid reactions
Language: English
Authors: Kexel, Felix 
Kameke, Alexandra von 
Tenhaus, Janina 
Hoffmann, Marko 
Schlüter, Michael 
Other contributor: Mewes, Dieter 
Keywords: Gas-liquid reaction;Mass transfer phenomena;Reactive bubbly flows;Selectivity;Taylor bubble
Issue Date: 11-Mar-2021
Publisher: Wiley-VCH Verl.
Source: Chemie-Ingenieur-Technik 93 (5): 830-837 (2021-05-01)
Journal: Chemie - Ingenieur - Technik 
Abstract (english): 
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.
DOI: 10.15480/882.3509
ISSN: 1522-2640
Institute: Mehrphasenströmungen V-5 
Document Type: Article
Project: SPP 1740: Einfluss lokaler Transportprozesse auf chemische Reaktionen in Blasenströmungen 
Projekt DEAL 
Funded by: 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. Open access funding enabled and organized by Projekt DEAL.
License: CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives) CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)
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