On single bubble mass transfer in a volatile liquid

Abstract : We consider single bubble mass transfer of an non-condensible gas into a volatile liquid phase in indus- trial conditions, as observed for example in hydrocarbons liquid phase oxidation processes. Instantaneous bubble size, shape and velocity are measured using image processing with a particle tracking method. The mass transfer rate nitrogen into hot and pressurized liquid cyclohexane is deduced from the bubble volume decrease rate and is compared to literature correlations valid under isothermal conditions. Experiments are performed in a pressurized reactor for P = 20 bar, 30° ≤ T ≤ 150°C and bubble Reynolds number Re = O(10—100). The analysis of bubble rise dynamics shows that the gas-liquid system studied can be considered as a clean system. The mass transfer results are found to follow isothermal correlations predictions excepted for ambient temperature for which liquid evaporation in bubbles is shown to be coupled with mass transfer. This phenomena seems to be a consequence of having a high Lewis number.
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-01886489
Contributor : Archive Ouverte Prodinra <>
Submitted on : Tuesday, April 9, 2019 - 3:32:41 PM
Last modification on : Friday, June 14, 2019 - 6:31:23 PM

File

Colombet_23458.pdf
Files produced by the author(s)

Identifiers

Citation

Damien Colombet, D. Legendre, U. Tuttlies, Arnaud Cockx, Pascal Guiraud, et al.. On single bubble mass transfer in a volatile liquid. International Journal of Heat and Mass Transfer, Elsevier, 2018, 125, pp.1144-1155. ⟨10.1016/j.ijheatmasstransfer.2018.04.149⟩. ⟨hal-01886489⟩

Share

Metrics

Record views

23

Files downloads

8