The Effect of Cohesive Forces on Catalyst Entrainment in Fluidized Bed Regenerators

2010 ◽  
pp. 155-171 ◽  
Author(s):  
Ray Cocco ◽  
Roy Hays ◽  
S Karri ◽  
Ted Knowlton
Keyword(s):  
Fluidized Bed ◽  
Cohesive Forces

Fluidization behavior of oil-contaminated sand

2007 ◽  
Vol 61 (2) ◽  
Author(s):  
M. Hartman ◽  
O. Trnka ◽  
M. Pohořelý
Keyword(s):  
Fluidized Bed ◽  
Oil Content ◽  
Empirical Correlation ◽  
Gas Velocity ◽  
Hydrodynamic Behavior ◽  
Transparent Glass ◽  
Cohesive Forces ◽  
Glass Column ◽  
Sticky Particles

AbstractHydrodynamic behavior of oil-polluted particles of sand was investigated in transparent glass column. The onset of fluidization of sand beds increased with the oil content of the bed. An increase of cohesive forces related to the higher content of liquid (oil) caused deterioration of the quality of fluidization. An empirical correlation was developed to predict the dimensionless gas velocity that keeps the bed of sticky particles fluidized. Results of this work can be employed for the design of fluidized-bed remediation units for oil-polluted sands and soils.

Modeling of Solid Fuel Combustion in Furnaces with a Circulating Fluidized Bed

2008 ◽  
Vol 39 (1) ◽  
pp. 65-78
Author(s):  
Yu. S. Teplitskii ◽  
V. A. Borodulya ◽  
V. I. Kovenskii ◽  
E. P. Nogotov
Keyword(s):  
Fluidized Bed ◽  
Solid Fuel ◽  
Circulating Fluidized Bed ◽  
Fuel Combustion ◽  
Solid Fuel Combustion
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