Gas holdup and volumetric liquid-phase mass transfer coefficient in bubble column with draught tube and with gas dispersion into annulus.
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概要
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The gas holdup ε and the volumetric liquid-phase mass transfer coefficient kLa were studied experimentally in a bubble column with a draught tube and with gas dispersion into the annulus. It has been shown that ε and kLa increase with increasing gas velocity and frothing ability of liquid, while the dimensions of the column have a minor effect on ε and kLa. Based on these observations, empirical equations for ε and kLa are proposed which are applicable to columns with diameters of 0.1-0.3 m. It was shown also that at the same gas velocity the values of ε and kLa in this column are larger than those in a bubble column without a draught tube, when a liquid with frothing ability is used.
- 公益社団法人 化学工学会の論文
著者
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Koide Kozo
Department Fo Chemical Engineering Tokyo Institute Of Technology
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Sato Hiroyuki
Department Of Biomolecular Science Fac.sci. Toho Univ.
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IWAMOTO SHINJI
Department of Chemical Engineering, Shizuoka University
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