Characterization of a gas-liquid OBC: Bubble size and gas holdup
✍ Scribed by Mónica S. N. Oliveira; Xiong-Wei Ni
- Publisher
- American Institute of Chemical Engineers
- Year
- 2004
- Tongue
- English
- Weight
- 277 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0001-1541
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The gas bubble column in which a gas is bubbled through a deep liquid without mechanical agitation is useful for carrying out various gas-liquid chemical reac-
Experiments of pressure effects on gas holdup and bubble size in slurry bubble columns at 5.6 MPa and at gas ®elocities up to 45 cmrs indicate that the gas holdup increases with an increase in pressure, especially at high slurry concentration. At ambient pressure, a higher solids concentration signi
Gas holdup in bubble columns has been investigated over a wide range of operational and geometrical parameters. A criterion has been developed for the prediction of the transitional velocity from the homogeneous to heterogeneous flow regime. Correlations for gas holdup in both regimes are developed