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Hydrodynamics of Three-Phase Fluidized Beds - 1978

J. M. Begovich

Oak Ridge National Laboratory

Report (131 Pages, 3.99MB)

Table of Contents

1

 Introduction and Significance

1
2 Theory 3
  Measurement of Hold ups and Minimum Fluidization Velocities 3
Discussion of Holdup Measurement Techniques 5
3 Literature Survey 12
  Gas Holdup 12
Solid Holdup and Bed Porosity 16
Liquid Holdup 24
Minimum Fluidization Velocities 27
4 Experimental 31
  Experimental Apparatus 31
Experimental Procedure 35
5 Experimental Results 38
  Minimum Fluidization 38
Overall Phase Holdups 43
Bed Expansion Characteristics 65
Axial Variation in Holdups 67
Discussion of Error 75
6 Correlation of Results 79
  Minimum Fluidization 79
Overall Phase Holdups 83
Local Phase Holdups 83
Local Holdups 85
7 Conclusions 109
 

List of References

 111
 

APPENDICES
A Calculation of Bed Height and Pressure Drop for Run G50E13 (129kb) 117
B Sample Calculations Using Run G22L16 (290kb) 122
  Calculation of Pressure Gradient 122
Pressure of Gradient Method for Calculation of Overall Holdups 124
Conductivity Method for Determination of Overall Holdups 125
Calculation of Incremental Holdups 126
Fit of Local Incremental Holdups 128
C Minimum Fluidization Velocity Data (183kb) 133
D Overall Phase Holdup Data (3.63MB) 137
  Obtained from the Literature 137
Obtained from the Study 182
E Incremental Holdup Data (3.41MB) 203
F Parameters Derived from Incremental Holdup Data (1.22MB) 271