Solid−Liquid Circulating Multistage Fluidized Bed: Hydrodynamic Study
作者： Prakash V. Chavan , Dinesh V. Kalaga , Jyeshtharaj B. Joshi
DOI: 10.1021/IE8018627
关键词: Particle velocity 、 Mechanics 、 Particle 、 Fluidized bed 、 Flow (psychology) 、 Fluidization 、 Cross section (physics) 、 Particle size 、 Phase (matter) 、 Chromatography 、 Materials science
摘要: The solid-liquid circulating multistage fluidized bed (SLCMFB) was constructed with the principal components being riser column and column. made up of 50 mm i.d. 2 m long glass pipe while seven stages 100 length. ion-exchange resin used as solid phase water fluidizing medium. flow characteristics SLCMFB were investigated for 0.365, 0.605, 0.725 particle sizes (dry basis). voidage in measured using γ-ray tomography (GRT). In column, found to be maximum at center minimum near wall. However, uniform over cross section velocity ultrasonic profiler (UVP) profiles show similar trend voidage, confirming existence radial non-uniformity Further, analyzed drift flux model (DFM) effect size superficial liquid on also investigated.
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