Hydrodynamics of Gas-Solids Bubbling Fluidized Beds Using Polyehtylene Resin

Wu, B., Shepperson, J., van der Lee, L., Bellehumeur, C. and Kantzas, A.

Fluidization XII, Harrison Hot Springs, Vancouver, B.C., May 13-17, 2007.


Pressure fluctuations were measured in three gas-solids bubbling fluidized beds (10cm, 20cm, and 30cm diameter, 1.0m high) using polyethylene particles of different sizes and particle size distributions. Both bed scale and particle size distribution significantly affect the gas-solids flow behavior. Bubble diameters measured from X-ray fluoroscopy in the 10cm diameter column were compared to various correlations in the literature.

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