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Study of Dual-Alkali on Sintering Flue Gas Desulfurization

Combining with the characteristics and control methods of sintering flue gas, several common methods for flue gas desulfurization(FGD) and development trend of desulfurization technology were described in this paper. According to characteristics of sintering flue gas and selection principles, dual-alkali method was used in the FGD. Desulfurization process, basic principle and characteristics of the process were studied in detail. By contrast test, the effect of concentration of the desulfurization, flue gas flow and surface active agent on the desulfurization efficiency was investigated in detail through calculating the pH value of the solution before and after desulfurization reaction.