Flue Gas Desulfurization

Ducon provides both wet & Dry FGD systems. FGD systems are custom designed to remove sulfur dioxide from flue gases using a variety of reagents, such as: caustic, lime, limestone, ammonia, flyash, magnesium oxide, soda ash, sea water or double alkali. Ducon can provide systems that recover sulfur, sulfuric acid or make dry gypsum from waste product. Ducon has supplied wet FGD systems on over 20,000 MW of combined power plant capacity. Ducon FGD systems can achieve over 99% sulfur dioxide removal efficiency. Ducon FGD systems can recover up to 90% of oxidized mercury in the flue gas.

Depending upon the reagent utilized, Ducon can select a packed tower, a spray tower or a Ventri-Rod Absorber (VRA™) (a proprietary Environeering unit) for the wet FGD application.

For Dry FGD systems, Ducon uses its proprietary two-fluid nozzle DRX-25 to atomize feed slurry in the spray reactor. Ducon provides either bag house filter or Electrostatic Precipitator for duct collection downstream. Ducon works with reputable vendors to provide Gas-to-Gas heat exchangers, fans, controls, and reagent handling & feeding systems.

Ducon has the capability to provide a complete turnkey installation including effluent treatment systems.