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How does the fluidized-bed boiler work? | 
Unlike typical “stoker grate” boilers where wood chips are simply burned as they pass along a rolling grate, the fluidized-bed boiler circulates the wood chips and burns them while they are suspended in air within the combustion chamber. This process burns fuel more completely, dramatically limits the production of nitrogen oxides and other emissions, and captures any unburned carbon compounds for further combustion. The new boiler system more efficiently converts water to superheated, high-pressure steam, which in turn spins the turbines to generate electricity.
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