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Axial solids mixing in a circulating fluidized bed

✍ Scribed by Yu.S. Teplitsky; V.A. Borodulya; E.F. Nogotov

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
261 KB
Volume
46
Category
Article
ISSN
0017-9310

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✦ Synopsis

A phenomenological model of axial solids mixing in a circulating fluidized bed is formulated. The model allows for main specific features of the process: ascending motion of particles in the core zone and their descending motion in the annular zone (inner circulation of solids); substantial changes of particle concentration, sizes of core and annular zones over the bed height; net circulation of solids and the effect of the bottom bed on the process. The validity of initial postulates is confirmed by comparison of calculated and experimental curves of mixing.

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