Desulfurization apparatus and desulfurization method

Details Desulfurization apparatus and desulfurization method Desulfurization apparatus and desulfurization method

B - Operations, Transporting

01

D

B01D 53/60 (2006.01) B01D 53/50 (2006.01) B01D 53/56 (2006.01) B01D 53/86 (2006.01)

Patent

CA 2407923

The present invention provides a desulfurization apparatus for desulfurizing a flue gas containing sulfur oxides through contact with a porous carbon material. The carbon material, which is provided in a desulfurization tower, is at least one species selected from activated carbon and activated carbon fiber. The apparatus contains an NO2-gas-feeding apparatus for feeding NO2 gas into the desulfurization tower. Within the desulfurization tower, showering means is provided at the top, the showering means adjusting the water content of the flue gas in the desulfurization tower to that corresponding to saturation with water vapor or higher at the treatment temperature.

La présente invention concerne un dispositif de désulfuration (10) comprenant une colonne de désulfuration (12) destinée à recevoir au moins une matière carbonée poreuse (11) choisie entre le charbon actif et les fibres de charbon actif, et à mettre en contact un gaz de combustion (13) contenant des oxydes de soufre avec la matière carbonée poreuse (11) afin de désulfurer le gaz, le dispositif de désulfuration (10) comprenant un dispositif d'introduction de gaz NO2 (14) qui introduit le gaz NO2 dans la colonne de désulfuration (12). Le dispositif de désulfuration de l'invention comprend un moyen d'aspersion (15) placé dans la partie supérieure de la colonne de désulfuration (12), qui permet de régler le contenu interne en eau pour que ce dernier ne descende pas sous la quantité de vapeur de saturation à la température qui est utilisée pour traiter le gaz de combustion.

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