Control of mercury emissions using coal - burning of combustion by-products

摘要

Invention patent: "control of mercury emissions using coal - burning of combustion by-products.The emission of mercury from a fuel gas such as that generated by a coal power plant is controlled by injecting the fuel gas of coal - burning purified from gray.Such as fly ash and wood ash. The coal - burning absorbs mercury and is subsequently removed from the fuel gas by a particle separator.The coal burned ash is collected cost significantly higher compared with that of the activated carbon currently used in such a method.The coal - burning is concentrated in the sorbent through one or more separation methods used to remove the particles do not coal fly ash.These methods include gravity separation, electrostatic separation, the separation by flotation foam, magnetic separation and classification by size.The adsorption of mercury is further increased by oxidation of the surface of the coal.