Fluid-bed technology
In the 1970s, fluidized-bed combustion technology was first applied to large-scale utility boiler units to explore new ways of burning solid fuels in an environmentally acceptable and efficient manner. Fluidized-bed units burn fuel in an air-suspended mass (or bed) of particles. Fluidized-bed combustion benefits include fuel flexibility and the ability to combust fuels such as biomass or waste fuels. Biomass and waste fuels are difficult to burn in conventional systems because of their low heating value, low fixed carbon, high moisture content, or other challenging combustion characteristics.