A method of co-firing of solid and gaseous fuels in a boiler with circulating fluidized bed

摘要

Present invention relates to a method of co-firing of solid and gaseous fuels in a boiler with circulating fluidized bed. The method is characterized by that the fuel gas is supplied to the space above the fluid-bed in a mix with the flue gas recirculation, which are taken from at least one point of the flue gas ducts of the boiler and fed for mixing with fuel gas by flue gas recirculation fan of flue gas recirculation.