TY - CHAP
T1 - Chemical Reactions at Freely Ascending Single Bubbles
AU - Böhm, Lutz
AU - Merker, David
AU - Strassl, Florian
AU - Herres-Pawlis, Sonja
AU - Oßberger, Martin
AU - Klüfers, Peter
AU - Schindler, Siegfried
AU - Guhathakurta, Jajnabalkya
AU - Grottke, Daniel
AU - Simon, Sven
AU - Rinke, Günter
AU - Hlawitschka, Mark
AU - von Kameke, Alexandra
AU - Kexel, Felix
AU - Schlüter, Michael
AU - Gast, Sebastian
AU - Tuttlies, Ute
AU - Nieken, Ulrich
AU - Hillenbrand, Dennis
AU - Marschall, Holger
AU - Weiner, Andre
AU - Bothe, Dieter
AU - Kraume, Matthias
PY - 2021
Y1 - 2021
N2 - A joint approach of chemists, mathematicians and engineers in the field of chemical reaction enhanced gas-liquid mass transfer on single bubbles is presented. New chemical systems are developed for homogenous chemical reactions in the liquid. By applying different metal-complex based reaction systems with diverse ligands in different reaction media (water and organic solvents) a broad range of reaction kinetics is available. As one measure, the bubble size change over time is investigated. The shrinking of the bubble allows the determination of overall mass transfer rates under diverse conditions. Numerous groups investigated the wake region of the bubble. The influence of the mixing behavior in this region on the mass transfer in general but also, e.g., on competitive consecutive chemical reactions is visualized. For a deeper understanding of the effect of surfactants on mass transfer, simulations are performed providing a high temporal and spatial resolution of the flow and concentration field near the bubbles surface. Furthermore, a compartment model for the description of the mass transfer near a single bubble is developed which allows the calculation of competitive consecutive chemical reactions with reasonable numerical effort.
AB - A joint approach of chemists, mathematicians and engineers in the field of chemical reaction enhanced gas-liquid mass transfer on single bubbles is presented. New chemical systems are developed for homogenous chemical reactions in the liquid. By applying different metal-complex based reaction systems with diverse ligands in different reaction media (water and organic solvents) a broad range of reaction kinetics is available. As one measure, the bubble size change over time is investigated. The shrinking of the bubble allows the determination of overall mass transfer rates under diverse conditions. Numerous groups investigated the wake region of the bubble. The influence of the mixing behavior in this region on the mass transfer in general but also, e.g., on competitive consecutive chemical reactions is visualized. For a deeper understanding of the effect of surfactants on mass transfer, simulations are performed providing a high temporal and spatial resolution of the flow and concentration field near the bubbles surface. Furthermore, a compartment model for the description of the mass transfer near a single bubble is developed which allows the calculation of competitive consecutive chemical reactions with reasonable numerical effort.
UR - https://www.scopus.com/pages/publications/85111834090
U2 - 10.1007/978-3-030-72361-3_22
DO - 10.1007/978-3-030-72361-3_22
M3 - Chapter
SN - 978-3-030-72360-6
VL - 128
T3 - Fluid Mechanics and Its Applications
SP - 545
EP - 581
BT - Reactive Bubbly Flows
A2 - Schl\uter, Michael and Bothe, Dieter and Herres-Pawlis, Sonja and Nieken, Ulrich, null
PB - Springer International Publishing
CY - Cham
ER -