Onset of Semifluidization and Fluidization in Conical Vessels

Abstract

Semifluidization is a recent development in the field of fluid-solid contact techniques and is a twophase phenomenon like the packed bed and the fluidized bed. A bed of this nature overcomes inherent disadvantages of packed and fluidized beds. Various aspects of semifluidization in cylindrical columns have been reported in literature. Liquid-solid semifluidization in conical vessels offers some more advantages like low pressure drop, less power consumption and smooth operation. In this paper an attempt has been made to predict the onset of semifluidization and fluidization for liquid-solid system in conical vessels.