Low-temperature carbon-based combined desulfurization and denitrification flue gas system and use method thereof

Abstract

The invention relates to a low-temperature carbon-based combined desulfurization and denitrification flue gas system and a use method thereof. The system comprises a first reactor, a second reactor and a third reactor and the reactors have the same structures. Each one of the first reactor, the second reactor and the third reactor comprises a central carbon-based bed, left and right air distribution grilles and left and right gas collection tanks in the outer side. The carbon-based bed is filled with an activated carbon material. The system utilizes the three same reactors and has functions of fine desulfurization, denitration and regeneration. The fine desulfurization and denitratio processes are connected in series and are connected to the regeneration process in parallel and the processes are carried out simultaneously so that in-situ regeneration is really realized. The reactor comprises the central carbon-based bed, left and right air distribution grilles and left and right gas collection tanks. The bed has a large windward area so that uniform gas distribution in the work and regeneration processes is guaranteed and a floor space is reduced. The system further improves the desulfurization and denitrification performances of the activated carbon material.

Description

technical field [0001] The invention relates to a combined desulfurization and denitrification flue gas system and its use method, in particular to a low-temperature carbon-based combined desulfurization and denitrification flue gas system and its use method. Background technique [0002] At present, in the flue gas desulfurization and denitrification technologies of power plant boilers, industrial boilers and industrial furnaces, the combined desulfurization and purification process of activated carbon materials (such as activated coke) has the advantages of water saving, integrated purification, no secondary pollution, and low operating temperature. It has been applied at home and abroad. Due to the limited adsorption capacity of activated carbon materials, they lose their activity after desulfurization and denitrification, and must be regenerated to restore their activity and be recycled. Therefore, the regeneration of activated carbon materials is an essential process in...

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Problems solved by technology

This method uses in-situ regeneration to regenerate the carbon material, but the carbon material will still partially move during use, causing wear and tear, and the operation is relatively complicated

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