2023
DOI: 10.1002/ceat.202300031
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Reactive Mass Transfer around Isolated Bubbles Rising in a Thin‐Gap Cell

Larissa Laurini,
Arthur Béteille,
Gerhard Fink
et al.

Abstract: The reactive mass transfer around isolated bubbles of pure oxygen rising in a thin‐gap cell filled with acetonitrile at rest is investigated. A colorimetric technique based on the bio‐inspired copper(I) complex [Cu(TMG2tol)]OTf is used. The gap‐ and time‐averaged dissolved oxygen concentration fields can be measured in the far‐wake of the bubbles with 3 < d < 47 mm. The variations of the Sherwood numbers with the Péclet numbers indicate that the mass transfer results obtained are identical with the ones measur… Show more

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Cited by 2 publications
(1 citation statement)
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“…9,10 Additionally, the formation of a thin liquid film between the bubbles and the adjacent solid wall significantly reduces mass transfer resistance. 11,12 Consequently, mass transfer coefficients in these confined areas were 2-7 times higher than those in typical large-space reactors. 13 Depending on the constraint size, confined spaces may exhibit axial confinement, perimeter confinement, or both.…”
Section: Introductionmentioning
confidence: 91%
“…9,10 Additionally, the formation of a thin liquid film between the bubbles and the adjacent solid wall significantly reduces mass transfer resistance. 11,12 Consequently, mass transfer coefficients in these confined areas were 2-7 times higher than those in typical large-space reactors. 13 Depending on the constraint size, confined spaces may exhibit axial confinement, perimeter confinement, or both.…”
Section: Introductionmentioning
confidence: 91%