Skip to Main content Skip to Navigation
Journal articles

Mass transfer characteristics and concentration field evolution for gas-liquid Taylor flow in milli channels

Abstract : The results of the recent experimental work performed by Butler et al. (2016, 2018) are analysed based on the dominant phenomena: (i) small scale convection by means of Taylor vortices in the liquid slugs and (ii) diffusion in lubrication film. A main result shown here is that the Taylor circulation frequency is able to reflect the global mass transfer rate in gas-liquid Taylor flow through an almost linear relationship, which emphasizes the interest of the circulating motion in the slug, and gives a very simple correlation to predict the kLa value (at large Schmidt number). A mechanism of flow behavior during the bubble formation at the T-mixer is proposed as a possible explanation of unexpected concentration areas (called “islands”). However, despite of these unusual concentration field structures in these cases, the mass transfer rate coefficient kLa is still accurately predicted by the Taylor circulation frequency in the slug.
Complete list of metadata

Cited literature [23 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02270667
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Monday, August 26, 2019 - 10:47:24 AM
Last modification on : Friday, February 5, 2021 - 12:30:03 PM
Long-term archiving on: : Friday, January 10, 2020 - 5:35:08 PM

File

Abiev_24193.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

R.Sh. Abiev, Colin Butler, Emmanuel Cid, Benjamin Lalanne, Anne-Marie Billet. Mass transfer characteristics and concentration field evolution for gas-liquid Taylor flow in milli channels. Chemical Engineering Science, Elsevier, 2019, 207, pp.1331-1340. ⟨10.1016/j.ces.2019.07.046⟩. ⟨hal-02270667⟩

Share

Metrics

Record views

72

Files downloads

149