Minimum Fluidization Velocity of Fine Particles

Cássia Regina Cardoso; Carlos Henrique Ataíde; J.M. Abreu

doi:10.4028/www.scientific.net/MSF.591-593.335

Paper Titles

Pressure Aided Sintering of Ultrafine Powders of WC with Addition of Co
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Metallography Parameters Study of Fe-6.5_wtSi Alloy Obtained by Spray Forming
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The Study of the Particles Size Influence on the Venturi Scrubbers Perfomance
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Identification of the Spouted Bed Flow Regime by Simulation and Experimental Data
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Minimum Fluidization Velocity of Fine Particles
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Filtration on Hydrocyclone of Optimized Geometric Relationships
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Centrifuge Study on Influence of Particle Size, Compression and Substratum on Particle-Surface Adhesion Force
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Thermal Decomposition and Solid Characterization of Calcium Oxide in Limestone Calcination
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Study of Continuos Settling Vessels Operating with Suspensions Previously Floculated
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HomeMaterials Science ForumMaterials Science Forum Vols. 591-593Minimum Fluidization Velocity of Fine Particles

Minimum Fluidization Velocity of Fine Particles

Abstract:

The minimum fluidization velocity is an important parameter in the design and operation of an industrial unit of fluidization. In the present work the minimum fluidization velocities of fine particles were obtained through two experimental methodologies. The first one is the classic procedure to determine that parameter analyzing the diagram of medium pressure drop in the bed in function of the superficial gas velocity, during the defluidization of the bed. And the second is the technique of identifying the minimum fluidization velocity interpreting the behavior of the normalized standard deviation of the pressure drop in the bed. A cylindrical bed of transparent acrylic was used in the process and the used particles were glass spheres, FCC and zinc powder. To compare the precision of the two methodologies some equations that predict the minimum fluidization velocity were used.