Wet Approach Venturi Scrubber
Ducon Venturi scrubber is used to remove sub-micron particles from flue gas in a wet process utilizing high pressure. This unit features a wetted wall inlet which eliminates wet-dry line build-up and permits direct recycle of high-solids liquid. Scrubbing liquid is distributed over a weir or shelf - no spray nozzles are used. The Venturi is teamed with a mist eliminator for efficient entrainment separation.
Ducon standard venturi scrubber consists of three sections: a converging section, a throat section, and a diverging section. The inlet gas stream enters the converging section and as the area decreases at the throat, the gas velocity increases causing liquid from the walls to tear into tiny droplets, which entrain the incoming particles. Particle removal from the gas occurs in the diverging section as the gas is forced to slow down. Venturis can be used to collect both particulate and gaseous pollutants, but they are more effective in removing particles than gaseous pollutants.