CFD Optimization of a Wet-Scrubber (FGD) in Spain

01.07.2006

We successfully optimized a wet-scrubber in a flue gas desulphurization plant in Spain. The SO2 concentration in the flue gases (1'200'000 Nm3/h) was reduced from 6'000 to 200 mg/Nm3. The multiphase flow in the absorber zone was analyzed by means of a CFD procedure to reproduce the interaction between the gas and dispersed limestone flurry flow.

 

Mesh of the scrubber

Mesh of the scrubber

 

Gas velocity path-lines inside the scrubber

Gas velocity path-lines inside the scrubber

 

 

 

Multiphase CFD model

Multiphase CFD model

 

CAD model of the scrubber

CAD model of the scrubber

 

CFD plot showing the gas velocity

CFD plot showing the gas velocity