Oxidation of calcium sulfite in the citric acid-enhanced limestone flue gas desulfurization system
LIU Sheng-yu
GAO Jin
XIAO Wen-de
YE Zhi-xiang
XU Cheng-hua
Abstract：The oxidation of calcium sulfite in the citric acid-enhanced limestone flue gas desulfurization was studied in the bubbling reactor. The oxidation rate of calcium sulfite is restrained by citric acid. The oxidation rate is catalyzed by Fe~(3+) , which with 0. 075 mmol/L Fe~(3+) is 1. 64 times as fast as that without Fe~(3+). The pH value is 6. 5, the oxidation rate is the fastest 3. 35 × 10~(-6)mol/ ( L · s) , which is proportional to the concentration of calcium sulfite and air flow rate.
Keywords：citric acid systemflue gas desulfurizaitoncalcium sulfiteoxidation
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1531-1534 )