Forret, A. ; Schweitzer, J. -M. ; Gauthier, T. ; Krishna, R. ; Schweich, D. (2003) Influence of scale on the hydrodynamics of bubble column reactors: an experimental study in columns of 0.1, 0.4 and 1 m diameters Chemical Engineering Science, 58 (3-6). pp. 719-724. ISSN 0009-2509
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0009-2509(02)00600-0
Abstract
Measurements of liquid velocities and liquid mixing have been performed in three different bubble columns of 0.15, 0.4 and 1 m diameter with water and air, at superficial gas velocity ranging from 0.05 to 0.20 m/s with high aspect ratios (HD/D>4). Liquid velocities are determined with a Pavlov tube calibrated up to 25% of gas holdup. Axial dispersion coefficient is determined using a new method which allows accounting for the upflow and downflow regions. The experimental results allow selecting reliable correlations of the literature. The Ueyama and Miyauchi model is successfully compared with the experiments and a new correlation for the kinematic viscosity is proposed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Hydrodynamics; Bubble Column; Scale Up; Pavlov Tube; Axial Dispersion Coefficient; Modelling |
| ID Code: | 65418 |
| Deposited On: | 17 Oct 2011 03:16 |
| Last Modified: | 17 Oct 2011 03:16 |
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