Patent ID: 7731926
Filing Date: 2010-06-08
Classification: B01D

Abstract:
1. A wet flue-gas desulfurization system comprising: an absorber shell including a flue gas inlet port through which a flue gas containing a sulfur oxide and soot and dust emitted from a combustion system is introduced and an absorbent liquid spray section provided at a higher portion than the flue gas inlet port; and a recirculation tank section which stores an absorbent liquid that has absorbed a sulfur oxide in a flue gas and includes an agitator including a propeller to agitate the absorbent liquid, an air feeding means which blows oxidation air into a vicinity of the propeller, and an absorbent liquid recirculating means which extracts the absorbent liquid after an oxidation reaction by air and a neutralization reaction by alkali and recirculatively feeds the absorbent liquid to the absorbent liquid spray section of the absorber shell, wherein the air feeding means is a means for feeding oxidation air to the absorbent liquid in the recirculation tank section at the rear and front of a liquid discharge by the propeller of the agitator.