Research on Single Tower Double Circulation Flue Gas Desulfurization Process for Coal-fired Boiler
Aiming at the problems of high concentration of sulfur dioxide emissions at the outlet and inability to meet the desulfurization efficiency standards in the existing desulfurization process of coal-fired boiler flue gas,this paper studies the single tower double circulation flue gas desulfurization process of coal-fired boiler.After clarifying the basic principle of single tower double circulation flue gas desulfurization reaction of coal-fired boilers,the core flue gas desulfurization equipment is selected,and a new desulfurization process is designed by strictly controlling key parameters such as liquid-gas ratio,calcium-sulfur ratio,and pH in the flue gas desulfurization process.Through practical examples,it has been proven that the application of the new desulfurization process can effectively improve the desulfurization efficiency,reduce the emission concentration of sulfur dioxide at the outlet,and realize the ultra-low sulfur dioxide emission requirements for coal-fired boilers.
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