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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/629

Title: Experimental Hydrodynamic Study of a Three-phase Semi-Fluidized Bed
Authors: Jena, H M
Keywords: three-phase semi-fluidization
pressure drop
minimum and maximum semi-fluidization velocity
top packed bed
Issue Date: 2006
Publisher: CHEMCON
Citation: Proceedings of the Indian Chemical Engineering Congress-2006 (CHEMCON-2006), Ankleshwar, India
Abstract: A semi-fluidized bed is characterized by a fluidized bed (acts as CSTR) and a packed bed (acts as a tubular flow reactor) in series within a single contacting vessel. The possible alteration of the internal structure allows the device to be utilized for a wide range of physical, chemical and biochemical applications. Little information is available on semi-fluidization in the gas-liquid-solid three phase systems, which can best be used as immobilized cell bioreactor. In the present study hydrodynamic characteristics viz. the pressure drop, minimum and maximum semi-fluidization velocity, and rate of top packed bed formation of a co-current gas-liquid-solid three-phase semi-fluidized bed has been studied using liquid as the continuous phase and gas as the discontinuous phase Experiments has been conducted in a 100 mm ID, 2m-height vertical Plexiglas column using air, water and glass beads in order to develop a good understanding of each flow regime in gas-liquid-solid semi-fluidization. ...
Description: Copyright for the paper belongs to CHEMCON
URI: http://hdl.handle.net/2080/629
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