Study examines cost trends for new and retrofit dry FGD systems

摘要

Numerous FGD systems are being planned in order to comply with continually more stringent power plant emissions regulations. Plant operators can choose between wet and dry flue gas desulfurization technologies. Although wet FGD systems are more common, dry FGD using "dry" absorbers and fabric filter (FF) systems are being considered more often because of simplified operation, combined SO{sub}2 and particulate control, and dry waste product. In addition, dry FGD systems are particularly well suited to plants burning low and medium sulfur coal.