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Fluidizing ultrafine powders with circulating fluidized bed
Chemical Engineering Science, 1999The hydrodynamic behavior of a number of ultrafine powders in a circulating fluidized bed was investigated. Different ultrafine powders displayed different fluidization behaviors in the dipleg and the powder return system, but their hydrodynamic behaviors in the riser were almost the same.
Hongzhong Li, Rouyu Hong, Zhaolin Wang
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On partial fluidization in rotating fluidized beds
AIChE Journal, 1987In a rotating fluidized bed, unlike in a conventional fluidized bed, the granules are fluidized layer by layer from the (inner) free surface outward at increasing radius as the gas velocity is increased. This is a very significant and interesting phenomenon and is extremely important in the design of these fluidized beds.
J. Kao, R. Pfeffer, G. I. Tardos
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Fluidization Phenomena and Fluidized Bed Technology
1997The term fluidization is used to designate the gas-solid contacting process in which a bed of finely divided solid particles is lifted and agitated by a rising stream of process gas. At the lower end of the velocity range, the amount of lifting is slight, the bed behaving like a boiling liquid (hence the term boiling bed).
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