scholarly journals REGION OF MOLECULAR DIFFUSION CONTROLLING FOR FILM COEFFICIENT OF MASS TRANSFER BETWEEN PARTICLES AND FLUID IN DILUTE PACKED BEDS

1971 ◽  
Vol 4 (4) ◽  
pp. 336-339
Author(s):  
TERUKATSU MIYAUCHI ◽  
TATSUJI KIKUCHI
Keyword(s):  
Mass Transfer ◽  
Molecular Diffusion ◽  
Packed Beds ◽  
Film Coefficient

Gas film coefficient of mass transfer in low Péclet number region for sphere packed beds

1976 ◽  
Vol 31 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Terukatsu Miyauchi ◽  
Hiroshi Kataoka ◽  
Tatsuji Kikuchi
Keyword(s):  
Mass Transfer ◽  
Peclet Number ◽  
Packed Beds ◽  
Péclet Number ◽  
Film Coefficient

Liquid-solid mass transfer in packed beds with downward concurrent gas-liquid flow

AIChE Journal ◽  
1978 ◽  
Vol 24 (4) ◽  
pp. 709-717 ◽  
Author(s):  
Charles N. Satterfield ◽  
Michael W. Van Eek ◽  
Gary S. Bliss
Keyword(s):  
Mass Transfer ◽  
Liquid Flow ◽  
Packed Beds ◽  
Solid Mass ◽  
Gas Liquid Flow

An Experimental Study of Heat and Mass Transfer During Drying of Packed Beds

1992 ◽  
Vol 114 (3) ◽  
pp. 727-734 ◽  
Author(s):  
W. C. Lee ◽  
O. A. Plumb ◽  
L. Gong
Keyword(s):  
Mass Transfer ◽  
Experimental Study ◽  
Glass Beads ◽  
Drying Rate ◽  
Packed Beds ◽  
Transfer Coefficients ◽  
Model Predictions ◽  
Drying Models ◽  
Surface Saturation ◽  
Drying Conditions

An experimental study has been conducted to provide a data base for drying packed beds of granular, nonhygroscopic materials. Experimental results for drying rate, saturation distribution, temperature distribution, and surface saturation are reported for drying glass beads under carefully documented drying conditions. Capillary pressure for both imbibition and drainage was measured for the glass beads, whose size ranged from 65 μm to 450 μm. The drying results demonstrate that, contrary to available model predictions, porous materials do not necessarily exhibit saturation gradients that always increase with distance from the drying surface. Under certain conditions the capillary potential is sufficient to create an internal drying front. The measurements of surface saturation are the first to be reported. They are utilized to speculate on the reasons for the failure of drying models to compare well with experiment without adjusting the convective heat or mass transfer coefficients.

Comparison of equations describing mass transfer in packed beds

1972 ◽  
Vol 73 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Otto Grubner ◽  
Dwight Underhill
Keyword(s):  
Mass Transfer ◽  
Packed Beds
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