Journal :   International Journal of Technology

Volume No. :   3

Issue No. :  1

Year :  2013

Pages :   11-14

ISSN Print :  2231-3907

ISSN Online :  2231-3915


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Maximum Semi-fluidization Velocity of Gas-liquid-solid Semi-fluidized Beds

Address:   Pooja V Shrivastava1*, A. B. Soni1, H. Kumar2
1Chemical Engg. Department, National Institute of Technology, Raipur -492001, India
2Chemical Engg. Department, Raipur Institute of Technology, Raipur -492001, India
*Corresponding Author

Semi-fluidized beds are found to have wide applications in process industries. In the present study hydrodynamic viz., maximum semi-fluidization velocity of gas-liquid-solid semi-fluidized bed has been studied. The necessity of generalized correlation for the prediction of maximum semi-fluidization is emphasized. Experiments have been conducted in a 100 mm ID, 1.8m height vertical Plexiglas column using air, water and solid (of different densities) in order to develop a good understanding of each flow regime in gas-liquid-solid semi-fluidization. It is found that maximum semi-fluidization velocity is strong function of superficial gas velocity, particle size, particle density and bed expansion ratio. Values of the maximum semi-fluidization velocity, obtained from experimental investigations have been compared with calculated values.
Gas-liquid-solid semi-fluidization, maximum semi-fluidization velocity, correlation, expansion ratio, particle size.
Pooja V Shrivastava, A. B. Soni, H. Kumar. Maximum Semi-fluidization Velocity of Gas-liquid-solid Semi-fluidized Beds. Int. J. Tech. 3(1): Jan.-June. 2013; Page 11-14
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