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Analysis of Hydrodynamic Similarity of Pressurized Three-Phase Slurry Bubble Column for its Design and Scale-up  

Seo, Myung Jae (Department of Chemical Engineering, Chungnam National University)
Lim, Dae Ho (Department of Chemical Engineering, Chungnam National University)
Jin, Hae Ryong (Department of Chemical Engineering, Chungnam National University)
Kang, Yong (Department of Chemical Engineering, Chungnam National University)
Jung, Heon (Synfuel Research Group, Korea Institute of Energy Research)
Lee, Ho Tae (Synfuel Research Group, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.47, no.6, 2009 , pp. 720-726 More about this Journal
Abstract
Hydrodynamic similarity was investigated in pressurized three-phase slurry bubble columns by selecting the bubble holdup and pressure drop as objective functions, for the effective design and scale-up of it. In addition, effects of operating variables on the bubble holdup with variation of column diameter were also analyzed. Gas velocity($U_G$), viscosity(${\mu}_{SL,eff}$) and surface tension(${\rho}_{SL}$) of slurry phase, density difference between the slurry and gas phases(${\rho}_{SL}-{\rho}_G$) depending on the operating pressure, pressure drop per unit length(${\Delta}P/L$), column diameter(D) and gravitational acceleration(g) were chosen as governing parameters in determining the bubble holdup and pressure drop in the column. From the dimensional analysis, four kinds of dimensionless groups were derived from the 7 parameters and 4 fundamental dimensions. Effects of dimensionless groups such as Reynolds, Froude and Weber numbers on the bubble holdup in the column were discussed. The pressure drop and bubble holdup could be predicted from the correlation of dimensionless groups effectively, which could be used as useful information for the design and scale-up of pressurized slurry bubble columns.
Keywords
Similarity; Three-Phase Slurry; Bubble Column; Scale-up;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Krishna, R. and Sie, S. T., "Design and Scale-up of the Fischer-Tropsch Bubble Column Slurry Reactor," Fuel Processing Techno., 64, 73-105(2000)   DOI   ScienceOn
2 Kang, Y., Park, S. H. and Kim, S. D., "Wavelet Transform Analysis of Pressure Fluctuation Signals in a Pressurized Bubble Column," Chem. Eng. Sci., 56, 6259-6265(2001)   DOI   ScienceOn
3 Kang, S. H., Son, S. M., Kang, Y., Bae, J. W. and Jun, K. W., "Effect of Pressure Fluctuations on the Heat Transfer Characteristics in a Pressurized Slurry Bubble Column," KJChE, 25, 897-904(2008)   DOI   ScienceOn
4 Gandhi, B., Prakash, A. and Bergougnou, M. A., "Hydrodynamic Behavior of Slurry Bubble Column at High Solids Concentrations," Powder Technol., 103, 80-94(1999)   DOI   ScienceOn
5 Wilkinson, P. M. and van Dierendonck, L. L., "Pressure and Gas Density Effects on Bubble Break-up and Gas Hold-up in Bubble Columns," Chem. Eng. Sci., 45, 2309-2315(1990)   DOI   ScienceOn
6 Kawase, Y. and Moo-young, M., "Influence of Non-newtonian Flow Behaviour on Mass Transfer Inbubble Columns with and Without Draft Tubes," Chem. Eng. Commun., 40, 67-83(1986)   DOI   ScienceOn
7 Shin, I. S., Son, S. M., Kim, U. Y., Kang, Y., Kim, S. D. and Jung, H., "Multiple Effects of Operating Variables on the Bubble Properties in Three-Phase Slurry Bubble Columns," Korean J. Chem. Eng., 26, 587-591(2009)   DOI   ScienceOn
8 Kang, Y., Cho, Y. J., Park, S. J., Fan, L. T. and Kim, S. D., "Characterization of Pressure Signals in a Bubble Column by Wavelet Transform," J. Chem. Eng. Japan, 34, 158-165(2001)   DOI   ScienceOn
9 Behkish, A., Lemoine, R., Sehabiague, L., Oukaci, R. and Morsi, B. I., "Gas Holdup and Bubble Size Behavior in a Large-Scal Slurry Bubble Column Reactor Operating with on Organic Liquid Under Elevated Pressures and Temperatures," Chem. Eng. J.,128, 69-84(2007)   DOI   ScienceOn
10 Maretto, C. and Krishna, R., "Modelling of a Bubble Column Slurry Reactor for Fischer-Tropsch Synthesis," Catal Today, 52, 279-289(1999)   DOI   ScienceOn
11 Deckwer, W.-D., Bubble column reactors, John Wiley and Sons,New York (1992)
12 Krishna, R., de Swart, J. W. A., Ellenberger, J., Martina, G. B. and Maretto, C., "Gas Holdup in Slurry Bubble Columns : Effect of Column Diameter and Slurry Concentrations," AIChE J., 43, 311-316(1997)   DOI   ScienceOn
13 Fan, L. S., Gas-liquid-solid fluidization engineering, Butterworth Publishers, Stoneham, Ma, USA(1989)
14 Li, H. and Prakash, A., "Influence of Slurry Concentrations on Bubble Population and Their Rise Velocities in a Three-Phase Slurry Bubble Column," Powder Technol., 113, 158-167(2000)   DOI   ScienceOn
15 Schumpe, A., Decker, W.-D. and Nigam, K. D. P., "Gas-Liquid Mass Transfer in Three-Phase Fluidized Beds with Viscous Pseudplastic Liquids", Can. J. Chem. Eng., 67, 873(1989)   DOI
16 Kang, Y., Cho, Y. J., Woo, K. J. and Kim, S. D., "Dynamic Characteristics of Heat Transfer Coefficient in Pressurized Bubble Columns with Viscous Liquid Medium," Chem. Eng. Processing, 41, 699-706(2002)   DOI   ScienceOn
17 Kang, Y., Cho, Y. J., Woo, K. J., Kim, K. I. and Kim, S. D., "Bubble Properties and Pressure Fluctuations in Pressurized Bubble Columns," Chem. Eng. Sci., 55, 411-419(2000)   DOI   ScienceOn