2009•Journal of Beijing University of Chemical TechnologyRequires access

Flue gas desulfurization by catalytic oxidation with Fenton's reagent

Xu Huan

Abstract

Flue gas desulfurization using iron in Fenton's reagent,Fe/H2O2,to remove SO2 has been demonstrated. The effects of varying the mass concentration of H2O2,dosage of Fe,gas flow rate and inlet volume fraction on desulfurization efficiency were studied using a simple bubbler designed in our laboratory. High desulfurization levels were observed even when the mass concentration of H2O2 was only 6 g/L. The optimum dosage of Fe was found to be 4.2 g/L. The removal efficiency of SO2 was above 99% when the gas flow rate was 400 L/h,and was unaffected by the inlet volume fraction. Similar results were demonstrated in a ring packed tower experiment.

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Key concepts: Flue-gas desulfurization, Chemistry, Reagent, Volume (thermodynamics), Flue gas, Volumetric flow rate, Catalysis, Mass fraction