Spray granulation in a circulating fluidized bed system: The role of breakage and attrition
11th International Conference on Fluidized Bed Technology (CFB 2014)
Contribution to Conference
The role of breakage and attrition of sucrose particles has been investigated in a circulating fluidized bed (CFB) granulation system consisting of a CFB riser and a solids recycle via a cyclone. In different zones of this system - gas distributor, riser, cyclone - different conditions for particle breakage and attrition prevail whose separate investigation leads to the conclusion that breakage in the cyclone is the dominant mechanism in the system. In order to describe its influence on the granulation result a simple population balance model has been derived.