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Fluidization And Soot Filtration In A Rotating Fluidized Bed, Gui-Hua Qian
Fluidization And Soot Filtration In A Rotating Fluidized Bed, Gui-Hua Qian
Dissertations
A horizontal rotating fluidized bed (RFB) has been investigated for the removal of soot from diesel engine exhaust. This requires necessitating an understanding of the nature of fluidization, particle mixing and filtration in the RFB.
In an RFB, particles are subject to a centrifugal force which can be much larger than the force of gravity. Therefore the Geldart classification for conventional fluidized beds must be modified for rotating fluidized beds. A theoretical analysis shows that group A particles (minimum bubbling velocity Umb > minimum fluidization velocity Umf can shift to group B Umb = Umf and group …