Abstract
Experiments were conducted to investigate the effect of various pertinent dynamic and geometric variables on individual phase holdups in a three-phase fluidized bed in the presence of a string of spheres promoter. Bed porosity was determined from measured bed height. Gas holdup was calculated from pressure drop data. Liquid hold was obtained by subtracting the sum of gas and solids holdup from unity. An electrolyte belonging to ferri-ferro redox system has been used as liquid phase. Glass balls of different sizes were chosen as fluidizing solids and nitrogen was employed as gas phase. The data on gas holdup, liquid holdup and bed porosity were graphically analyzed and correlation equations were obtained.
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