Midwestern U.S. Utility

Babcock & Wilcox (B&W) wet flue gas desulfurization (FGD) systems feature a combination of design components to provide the industry’s highest level of reliability and removal efficiencies. These include B&W's signature tray tower design to provide excellent gas to liquid contact and uniform flow distribution through the absorber spray zones; its patented inlet awning, interspatial headers to reduce absorber height, pump power requirements, and internal support costs; forced oxidation system; and advanced mist eliminators.

Boiler/Plant Information

• 2 x 550 MW
• Boiler type: Pulverized coal fired
• Design fuel: Bituminous
• Additional environmental equipment: Electrostatic precipitator (ESP) and selective catalytic reduction (SCR) systems

Project Summary

• Engineering, procurement and construction of a wet flue gas desulfurization system with two absorbers.
• System designed to remove 97% of the entering SO₂ without organic acid addition
• Type: Limestone forced oxidation with gypsum byproduct
• Project awarded: April 2004
• Operation dates: April 2007 and November 2007