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Effect of Satellite bubbles on Dynamics of Gas Absorption from a CO2 Bubble into a Downward-Flowing Liquid
1Department of Chemical Science and Technology, The University of Tokushima, Tokushima, Japan 2Geotechnology Department, National Institute for Resources and Environment, Tsukuba, Japan
kats@chem.tokushima-u.ac.jp
Korean Journal of Chemical Engineering, September 1999, 16(5), 635-639(5), 10.1007/BF02708144
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Abstract
The dynamic process of gas absorption from a CO2 bubble into a liquid is examined in the presence of satellite bubbles. The bubble under consideration is held stationary, except its jittering, by the liquid flowing downward. The mass transfer rate is determined by monitoring the rate of reduction in the equivalent bubble diameter during the initial absorption process. It is found that the interaction with the satellite bubbles generally hampers the dissolution of the primary bubble. The extent of reduction in the dissolution rate increases with the net contacting time during the interaction. When the secondary bubbles interact with the primary bubble mainly outside of its wake, however, the disslution tends to be enhanced due to induced trubulence in the surrounding liquid flow. A simple theoretical model is developed to simulate the observed results as well as the basic features prevailing in a recently proposed scheme, called the GLAD system, for shallow injection of CO2 gas into seawater.
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Tsuchiya K, Mikasa H, Saito T, Chem. Eng. Sci., 52(21-22), 4119 (1997)
