Fluid bed drying
This involves the passing of conditioned air, from below through a bed of particles, for the state of fluidisation to occur. Fluid bed dryers are selected upon best capablity of handling the particulate structure of crystalline sweetener products such as dextrose monohydrate and anhydrous dextrose.
One of the most important continuous drying techniques for converting liquid sweetener formulations into powders. The feed is atomised into droplets, which are directed into a controlled flow of hot air. Particles are formed as moisture evaporates from each droplet, and the dried product is discharged from the drying chamber. Depending on type of sweetener various spray dryer designs are selected.