The wet flue gas desulfurization (FGD) system from Babcock & Wilcox (B&W) features a combination of design components to provide a high level of reliability and removal efficiencies. These include B&W’s signature tray tower design that provides 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 800 MW
Boiler type: Pulverized coal fired
Design fuel: Bituminous
Additional environmental equipment: Electrostatic precipitator (ESP), selective catalytic reduction (SCR) system, and a trona injection system for SO3 control.
Project Summary
Engineering, procurement and construction of a wet flue gas desulfurization system
System designed to remove 98% of the entering SO2without organic acid addition
Type: Limestone forced oxidation with gypsum byproduct
Project awarded: March 2004
Operation dates: January 2007 (Unit 2) and April 2007 (Unit 1)
B&W Scope
Two (2) wet FGD absorbers (1 per boiler)
Two (2) limestone milling systems (1 operating, 1 spare)
Gypsum dewatering system that includes three (3) horizontal table filters (2 operating, 1 spare)
Buildings and structural steel
Construction of all B&W supplied equipment and structural steel, through Babcock & Wilcox Construction Co., Inc. (BWCC), a B&W subsidiary At the time of contract signing, these absorber tower modules, at 68.5 ft (20.9 m) in diameter, were the largest shop-assembled FGD modules B&W has ever designed and built.
Results
The project met every engineering, fabrication and construction schedule milestone. The commissioned units have met performance guarantees.
We consistently demonstrate the ability to successfully execute innovative solutions for our customers, from new equipment to large, complex full-scope engineering and construction projects.
An extensive network of worldwide regional service centers, field service engineers and technical support personnel are available to provide the customized service and aftermarket solutions for your requirements.
