Low-emission combustion with Valmet CFB Boiler

Based on circulating fluidized bed technology, the Valmet CFB Boiler (formerly known as CYMIC) enables the safe and efficient combustion of the plant’s demanding fuels containing even high amounts of chlorine, alkalis and other corrosive components. Limestone and ammonia water injected into the furnace minimize so2 and Nox emissions from the process, and a fluidized bed superheater in the cyclone’s loopseal prevents hightemperature corrosion. A bag filter removes 99.9% of solids in flue gases, and a layer of lime and activated carbon on the bag filter’s surface removes the remaining sulfur oxides and other acid gases, and eliminates any mercury and dioxin emissions.