comparison of the values of mterfaclal area m cocurrent downward flow of gas and hquld with those obtamed m upward flow revealed very httle difference Volumetric as well as true hqmd side mass transfer coefficients m downflow were found to be several times lower than m upflow Only m the smallest 10
Two-phase flow—IV. Gas and liquid side mass transfer coefficients
✍ Scribed by G. Kasturi; J.B. Stepanek
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 715 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
Mass transfer coefficients in gas and liquid have been obtained for the case of cocurrent gas-liquid flow through a vertical tube 6 mm id. by absorbing sulphur dioxide into sodium hydroxide solution and carbon dioxide into sodium carbonate-sodium bicarbonate solution respectively. The liquid side mass transfer coefficient was found to increase with the gas velocity but showed a maximum when plotted against the liquid velocity. A model based on the analogy between momentum and mass transfer has been proposed for the rate of mass transfer in the liquid phase. The mass transfer coefficient in the gas phase increases with the gas velocity but the liquid velocity has an opposite effect. A correlation in terms of dimensionless groups is presented for the gas side mass transfer coefficient.
📜 SIMILAR VOLUMES
The present work reports a series of' experimental measurements of liquid-side mass transfer coefficient for slugs rising in liquids with viscosities in the range 0.9 x IO-'-0.14 Pas. Three column diameters were used (19,32 and 52 mm) and slugs with values of L/D up to 38 were studied. The data obta
## Abstract New data of gas‐liquid mass transfer for cocurrent downflow through packed beds of non‐porous particles are presented. Mass transfer parameters for air/carbon dioxide/water and air/carbon dioxide/sodium hydroxide systems were evaluated by least squares fit of the calculated CO~2~ concen