Residence time distribution and dispersion of gas phase in a wet gas scrubbing system |
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Authors: | Uk Yeong Kim Sung Mo Son Suk Hwan Kang Yong Kang Sang Done Kim |
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Affiliation: | (1) School of Chemical Engineering, Chungnam National University, Daejeon, 305-764, Korea;(2) Department Chemical and Biomolecular Engineering, KAIST, Daejeon, 305-701, Korea |
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Abstract: | Residence time distribution (RTD) of exhaust gas in a wet scrubbing system was investigated for application to the removal
of SO
x
, NO
x
or dust included in exhaust gas. The mixing of gas phase in the wet scrubbing system was also examined by considering the
axial dispersion coefficient of gas phase. Effects of gas amount (velocity), liquid amount (velocity) and solid floating materials
on the residence time distribution (RTD) and axial dispersion coefficient of exhaust gas were discussed. The addition of solid
floating materials could change the RTD and thus dispersion of exhaust gas in the scrubbing system. The mean residence time
and axial dispersion coefficient of exhaust gas were well correlated in terms of operating variables. |
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Keywords: | Gas RTD Wet Scrubbing System Gas Dispersion Coefficient Floating Materials |
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