In applying centrifugal force to separation, the separator size is determined by the flow capacity, among other factors.
However, the amount of separating force that can be generated at a given rotational velocity decreases as the separator diameter increases.
The result is that larger, higher-capacity centrifugal monotube units are less efficient than smaller ones for removing small-entrained mist droplets. Multicyclone separators use this principle.
In Multicyclone Demister, the flowstream is processed through a bank of parallel reverse-flow or axial flow cyclone demister tubes, each tube taking a fraction of the flow.
Each tube keeps a small diameter to maintain high separation efficiency.