EKATO Flue Gas Desulfurization

Typical applications:

Calcium sulfite from desulphurisation of flue gas is converted to saleable gypsum (calcium sulfate) by oxidation. Performance targets for the oxidation equipment include:

• Highly efficient mass transfer
• Minimum installation costs
• No risk of clogging
• Selection of suitable materials of construction due to aggressive operating conditions: pH, temperature, chloride concentrations, and the presence of fluorides.

The patented EKATO gassing system with the EKATO WINGJET impeller and gas feed lances achieves low final sulfite contents in the gypsum. A further advantage is that the air feed can be stopped if the power station is not operating, since the lances do not clog.
 
 
Additional advantages of the WINGJET O2 :
 
Simplified air feed into the rotating lance, with low-friction transition from the stationary air lance to the rotating lance.
 
Increased air dispersion capability, which helps reduce the number of agitators for applications involving high sulfur coals, and hence lower capital and operating costs.
 
Higher mass transfer due to efficient predispersion, which leads to lower agitation power demand and hence lower operating costs.
 
Saving on installation and operating costs due to use of fewer agitators.
 
 
EKATO WINGJET:
 
The EKATO WINGJET has been especially developed for flue gas desulfurization applications.
 
The blade geometry was optimized with the help of CFD simulations. The unique shape and pitch of the blade produces increased pumping rates and dramatically reduces vortex generated impact erosion. The "winglet" design suppresses vortexing around the tip of the blade and, therefore, impact erosion - thus extending operational life and reducing maintenance costs.
 
EKATO RMT impellers are constructed of abrasion resistant cast materials. Materials of construction are selected based on specific process conditions (pH value, chloride and solids concentration.)