Nk. Yadav et al., EXPERIMENTAL EVALUATION AND MODELING OF AGGLOMERATING FINE POWDER FLUIDIZED-BEDS, Industrial & engineering chemistry research, 33(10), 1994, pp. 2412-2420
The effects of fines on the behavior of a fluidized-bed reactor have b
een investigated using a commercial catalyst for propylene ammoxidatio
n. Experimental studies show that the catalyst powder agglomerates and
that there exists a critical level of fines in the bed (around 30%) f
or which the fluid-bed behavior in terms of bed expansion, aeratabilit
y, and cluster size is optimum. The results also suggest that the dens
e phase should indeed be treated as two distinct phases: cluster and e
mulsion. A general mathematical model to account for these two phases
is proposed.