Abstract:Limestonegypsum wet flue gas desulphurization technology is most widely used at present, and the new single tower with double circulation typed limestonegypsum wet flue gas desulphurization technology is developed on the basis of traditional single tower with single circulation typed desulphurization technology. This technology overcomes the short comings of high efficiency and low energy consumption of traditional technology, and improves the desulphurization efficiency, which meets the latest emission standards. This paper introduced the mechanism of single tower with double circulation typed desulphurization technology, and prospected the development trend of the technology through the application of a certain power plant.

Keywords:limestonegypsum wet flue gas desulphurization;single tower with double circulation, absorption tower, slurry circulating pump