Attrition in a Liquid Fluidized Bed Bioreactor

Document Type


Publication Date



Attrition of porous alumina spheres in a liquid fluidized bed was measured at three different liquid velocities. Attrition rate varied with superficial fluid velocity in a manner different from that reported for gas fluidized beds. An attempt was made to correlate the attrition rate with the number of particle collisions in the bed. The latter was estimated by a model based on an analogy with the kinetic theory of gases. The model failed to predict the measured increase of attrition rate with superficial liquid velocity. Reasons for the failure of the model are discussed. © 1988, American Chemical Society. All rights reserved.

Publication Title

Industrial and Engineering Chemistry Research