Preparation and Evaluation of Co-Cu-V / ZSM-5 Catalysts for Simultaneous Desulfurization and Denitrification of Flue Gas

Abstract

A Co (1%)-Cu (1%)-V (1%) / ZSM-5 catalyst was prepared by impregnation. It was evaluated that the effects of different preparation and impregnation methods, catalytic elements, Co modifying and loading times, and reaction temperature, on the catalytic simultaneous desulfurization and denitrification. The results showed that V and Cu are the best elements for conversions of SO2 and NO, which acted each other well, and that Co Pre-impregnation before simultaneous impregnation of V and Cu and the second impregnation of this procedure can improve the conversions. Under the optimum reaction temperature of 350 ℃ and 60mL/min gas flow conditions the average conversions of SO2 and NO were 100% and 61%, respectively.