Method and apparatus for enhanced mercury removal

Details Method and apparatus for enhanced mercury removal Method and apparatus for enhanced mercury removal

B - Operations, Transporting

01

D

B01D 53/64 (2006.01) B01D 53/06 (2006.01) C01G 13/00 (2006.01)

Patent

CA 2656153

A method and apparatus for treating a coal combustion flue gas. In one embodiment, the method includes injecting a halogen into a flue gas, and injecting partially combusted, carbon enriched alkaline coal ash solid particles into the flue gas ahead of a particulate collection device. In another embodiment, the method includes exposing partially combusted, carbon enriched alkaline coal ash solid particles to a halogen containing atmosphere, and injecting the halogen atmosphere treated alkaline carbon containing solid particles into the flue gas ahead of a particulate collection device.

L'invention concerne un procédé et un appareil de traitement d'un gaz de combustion du charbon. Dans un mode de réalisation, le procédé comprend l'injection d'un halogène dans un gaz de fumée et l'injection de particules solides de cendre de charbon, alcalines, enrichies au carbone, partiellement brûlées, dans le gaz de fumée en avant d'un dispositif de collecte des particules. Dans un autre mode de réalisation, le procédé comprend l'exposition de particules solides de cendre de charbon, alcalines, enrichies en carbone, partiellement brûlées, à une atmosphère contenant un halogène, et l'injection des particules solides contenant du carbone, alcalines, traitées par l'atmosphère d'halogène, dans le gaz de fumée en avant d'un dispositif de collecte des particules.

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