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http://dx.doi.org/10.9713/kcer.2012.50.2.304

Size Verification of Small and Large Bubbles in a Bubble Column  

Seo, Myung Jae (School of Chemical Engineering, Chungnam National University)
Jin, Hae-Ryong (School of Chemical Engineering, Chungnam National University)
Lim, Dae Ho (School of Chemical Engineering, Chungnam National University)
Lim, Ho (School of Chemical Engineering, Chungnam National University)
Kang, Yong (School of Chemical Engineering, Chungnam National University)
Jun, Ki-Won (Green Chemical Technology Division, Korea Research Institute of Chemical Technology)
Publication Information
Korean Chemical Engineering Research / v.50, no.2, 2012 , pp. 304-309 More about this Journal
Abstract
Size verification of small and large bubbles in a bubble column was investigated by employing the dynamic gas disengagement (DGD) method and dual electrical resistivity probe (DRP) method, simultancously. The holdups of large and small bubbles in the bubble column in a given operating condition were obtained by means of the DGD method by measuring the pressure drop variation in the column with a variation of time after stopping the gas input into the column. The size and frequency of bubbles were measured by the DRP method in the same operating condition, from which the bubble holdup of each range of size was obtained. The verification of size in determining the large or small bubbles was decided by comparing the holdups of large or small bubbles measured by the DGD method with that measured by the DRP method. Filtered compressed air and tap water were used as a gas and a continuous liquid medium. The diameter and height of the bubble column were 0.102 m and 1.5 m, respectively. The demarcation size between the large and the small bubbles in the bubble column was 4.0~5.0 mm; the demarcation size was about 5.0 mm when the gas velocity was in the relatively low range, but about 4.0 mm when the gas velocity was in the relatively high range, within this experimental conditions.
Keywords
Demarcation Bubble Size; Bubble Column; Small Bubble; Large Bubble; Bubble Holdup;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Kim, S. D. and Kang, Y., "Hydrodynamics, Heat and Mass Transfer in Inverse and Circulating Three-Phase Fluidized-Bed Reactors for Waste Water Treatment," Studies Sur. Sci. Cat, 159, 103-108 (2006).   DOI
2 Kang, Y., Lee, K. I., Shin, I. S., Son, S. M., Kim, S. D. and Jung, H., "Characterisics of Hydrodynamics, Heat and Mass Transfer in Three-phase Inverse Fluidized Beds," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 46, 451-464(2008).
3 Krishna, R. and Sie, S. T., "Design and Scale-up of the Fischer-Tropsch Bubble Column Slurry Reactor," Fuel Process. Technol., 64, 73-105(2000).   DOI   ScienceOn
4 Lim, D. H., Jang, J. H., Kang, Y. and Jun, K. W., "Axial and Radial Distributions of Bubble Holdup in a Slurry Bubble Column with Pilot Plant Scale," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 49, 200-205 (2011).   DOI
5 Jin, H. R., Song, Y. H., Kang, Y., Jung, H. and Lee, H. T., "Holdup Characteristics of Small Bubbles in a Viscous Slurry Bubble Column," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 49, 83-88(2011).   DOI
6 Behkish, A., Lemoine, R., Schabiaque, L., Qukaci, R. and Morsi, B. L., "Gas Holdup and Bubble Size Behavior in a Large-Scale Slurry Bubble Column Reactor Operating with on Organic Liquid under Elevated Pressure and Temperature," Chem. Eng. J., 128, 69-84(2007).   DOI   ScienceOn
7 Chem, Z., Zheng, C. and Hofmann, H., "Local Bubble Behavior in Three-Phase Fluidized Beds," Can. J. Chem. Eng., 76, 315-318 (1998).   DOI   ScienceOn
8 Matsuura, A. and Fan, L. S., "Distribution of Bubble Properties in a Gas-Liquid-Solid Fluidized Bed," AIChE J., 30, 894-903 (1984).   DOI   ScienceOn
9 Zhang, L., Li, T., Ying, W. and Fang, D., "Rising and Decending Bubble Size Reactor," Chem. Eng. Res. Des., 86, 1143-1154(2008).   DOI   ScienceOn
10 De Swart, J. W. A., Van Vliet, R. E. and Krishina, R., "Size, Structure and Dynamics of Large Bubbles in a Two-Dimensional Slurry Bubble Column," Chem. Eng. Sci., 51, 4619-4629(1996).   DOI   ScienceOn
11 Krishna, R. and Van Bate, J. M., "Simulting the Motion of Gas Bubbles in a Liquid," Nature, 398, 208(1999).   DOI   ScienceOn
12 Krishna, R., Van Baten, J. M., Wrseanu, M. I. and Ellenkerger, J., "Design and Scale up of a Bubble Column Slurry Reactor for Fischer - Tropsch Synthesis," Chem. Eng. Sci., 56, 537-545(2001).   DOI   ScienceOn
13 Son, S. M., Song, P. S., Lee, C. G., Kang. S. H., Kang, Y. and Kusakabe, K., "Bubbling Behavior in Gas-Liquid Countercurrent Bubble Column Bioreactors," J. Chem. Eng. Japan, 37, 990-998(2004).   DOI   ScienceOn
14 Son, S. M., Kang, S. H., Kim, U. Y., Kang, Y. and Kim, S. D., "Axial Variation and Distribution of Bubble Properties in Gas/ Liquid Countercurrent Fluidized Beds," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 42, 235-240(2004).
15 Son, S. M., Kang, S. H., Kim, U. Y., Kang, Y. and Kim, S. D., "Bubble Properties in Three-Phase Inverse Fluidized Beds with Viscous Liquid Medium," Chem. Eng. Processing, 46, 763-741(2007).
16 Shin, K. S., Song, P. S., Lee, C. G., Kang, S. H., Kang, Y., Kim, S. D. and Kim, S. J., "Heat Transfer Coefficient in Viscous Liquid-Solid Circulation Fluidized Beds," AIChE J., 51, 671-677(2005).   DOI   ScienceOn
17 Cho, Y. J., Song, P. S., Kim, S. H., Kang, Y. and Kim, S. D., "Stochastic Analysis of Gas-Liquid-Solid Flow in Three-Phase Circulating Fluidized Beds," J. Chem. Eng. Japan, 34, 254-261(2001).   DOI   ScienceOn
18 Dechwer, W. D., Bubble Column Reactors, John Wiley and Sons Ltd.,(1992).
19 Saberi, S., Shakourzaduu, K., Bastoul, D. and Militzer, J., "Bubble size and Velocity Measurement in Gas-Liquid Systems: Application of fiber optic technique to Pilot Plant Scale," Can. J. Chem. Eng., 70, 253-257(1995).
20 Wang, T., Wang, J., Yang, W. and Jin, Y., "Bubble Behavior in Gas-Liquid-Solid Three-phase Circulating Fluidized Beds," Chem. Eng. J., 84, 397-404(2001).   DOI   ScienceOn
21 Nigam, K. D. P. and Schumpe, A., Three-phase Spagered Reactors.