Columbia Energy Center Air-Quality-Control Retrofit

摘要

Wisconsin Power & Light Co.'s largest coal-fired power plant, Columbia Energy Center, with two subcritical units over 500 MW, was required to bring its air emissions into compliance with federal standards. The utility engaged Black & Veatch to engineer, procure and construct a $595-mion, state-of-the-art air-quality-control retrofit. To reduce carbon emissions, new equipment included a carbon-injection system, a semi-dry flue-gas desulfurization system and a pulse-jet fabric filter. Common equipment at both units included a reagent preparation system, a truck-based lime delivery station and storage silos, scrubber solids-handling and conveying system, and ancillary equipment.