Operating Experience from the World´s Largest Waste Fired Circulating Fluidized Bed Reactor in VästerÃ¥s

The design features for large scale CFB boiler conceptfor Waste-to-Energy is presented. Main design parameters of fuel mixtures,chemical as well as physical properties are described. Fuel based challenges inboiler operation, e.g. bed agglomeration, fouling, corrosion and flue gasemissions, and related process design and constructional features to tacklethese challenges are discussed. Early operating experiences of the 155 MW th MalarenergiWaste-to-Energy CFB boiler in Vasteras, Sweden is discussed. This boiler isdesigned to burn household waste up to 70 percent and industrial waste up to100 percent of heat input. Alsosome sludge, recovered wood, peat and biomass are part of thedesign fuel palette.