Behaviour of Three Phase Fluidized Beds Using Wood Particles

Abstract

The bed expansion behaviour for a co-current three phase fluidized bed with wooden cubes of 7mm dimensions has been investigated. Experiments were carried out using air, water and the wooden cubes as the gas, liquid and solid phases respectively. Water was used as the continuous phase and air as the discontinuous phase. Changes in bed expansion ratio with different system parameters such as gas and liquid velocities have been found out. Bed expansion ratio shows an increment with increase in the gas and liquid velocities. Whereas the trend is reverse with increasing bed height.