Effect of liquid properties on the performance of bubble column reactors with fine pore spargers |
| |
Authors: | A.A. Mouza |
| |
Affiliation: | Department of Chemical Engineering, Aristotle University of Thessaloniki Univ.Box 455, GR 54124 Thessaloniki, Greece |
| |
Abstract: | This work is a study of the effect of liquid properties on the performance of bubble column reactors with fine pore spargers. Various liquids covering a range of surface tension and viscosity values are employed, while the gas phase is atmospheric air. A fast video technique is used for visual observations and, combined with image processing, is used for gas holdup and bubble size measurements. New data on average gas holdup values, bubble size distributions and Sauter diameters are presented and are consistent with existing physical models on coalescence/breakage. A correlation based on dimensionless groups for the prediction of gas holdup in the homogeneous regime is proposed and found to be in good agreement with available data. |
| |
Keywords: | Bubble column Porous sparger Gas holdup Bubble size Coalescence Liquid properties Flow regimes |
本文献已被 ScienceDirect 等数据库收录! |
|