Babcock & Wilcox (B&W) integrated a circulating dry scrubber (CDS) system upstream of an existing fabric filter to control SO2, H2SO4, HCl, HF, mercury, and particulate matter emissions. The CDS system was designed to control emissions from burning either Powder River Basin (PRB) coal alone or with a blend of bituminous coal, achieving SO2 removal efficiency up to 98%.
The new CDS system was integrated into the existing flue work structure in approximately 6 months, while Babcock & Wilcox Construction Co., Inc., a subsidiary of B&W, completed the tie-in outage in less than 6 weeks. After approximately 3 months of operation, the system was performance tested and passed all guarantees (emissions and consumables) and completed the reliability demonstration shortly thereafter.
Scope
Design, supply, erection, training and commissioning
Circulating dry scrubber; 6 venturi design
By product solids recirculation system; 6 solids injection locations (below the venturis)
Hydrated lime feed system
Humidification water system; 6 water injection lances (above the venturis)
B&W optimizes its circulating dry scrubber design for each application. This approach provides the end user with an optimized system to reduce long-term power and lime consumption, while providing reliable operation across wide load and fuel ranges. Plant owners benefit from lower operation and maintenance costs.
The compact CDS absorber module is ideal for plant locations with limited space.
A circulating dry scrubber is integrated with a fabric filter for effective SOx, H2SO4, HCl, HF, mercury, and particulate emissions control. Hover and click on the numbered image shown below to learn more!
Fabric Filter
ID Fan
Clean Gas Recirculation Flue
Circulating Dry Scrubber Absorber
Absorbent Storage Silo
New Build
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