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    STUDIA CHEMIA - Issue no. 1-2 / 2001  
         
  Article:   THE HYDRODYNAMIC OF THREE-PHASE FLUIDIZED BED WITH LOW DENSITY SOLIDS.

Authors:  POP ALEXANDRU, DRAGAN S., BOTAR-JID C.. 		 
       
         
  Abstract:  In this paper are presented the experimental data concerned minimum fluidization velocity and pressure fall in fluidized bed with low density solids (ρ=179  312 kg/m3) and high diameter (d=19  38 mm) with pellicular two and three-phases flow of fluid on fluidized solid surface. New relations are propoused for minimum fluidization velocity and pressure fall determination on base of obtained experimental data. Minimum fluidization velocity has been corelate with solid specific features and sprinkling density form which column is getting drown. Low pressure falling and fluidization velocity (2  5 m/s) gives the utilization possibility of three-phases fluidized bed, with small density solids, in purification of high fluid debits through absorption and chemosorption processes in low dimension and compact instalation unit.  
         
     
         
         
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