No abstract

Spoutfluidization is a new technique for solid-fluid contact which aims at incorporating the advantages of spouted bed and fluidized bed technique. l'he characteristics of physical state of the bed with the The Cmadian fournal of Chemical Engineering, Vol. 52, April, 1974 dp=0.461 rnrn, L .16.0 crns , CONICAL DlSTRlB Retracing path -----------Minimum fluidization(only) velocity of the bed uns 63.1 N L P M air FLUIDIZING MIN. 5 5L * '

The spout-fluid bed is a unique fluid-particle-agitated bed in which spouting and fluidizing occur simultaneously. This technique overcomes such inherent limitations as stratification or slugging in a fluidized bed and restricted flow of annulus solids or instability in a spouted bed. The spout-fluid bed technique gives a much higher rate of circulation and mixing of solids and fluid than any other technique for fluid-particle contact. It allows a larger range of fluid flow rate and good control of spouting or fluidizing. The minimum fluid mass flow rate for maintaining spouting or fluidizing is lower than when the entire bed is only spouted or fluidized.

No abstract

No abstract