Study On Influence Factor And Mechanism Of Flue Gas Simultaneous Desulfurization And Denitrification Basing On Highly Active Absorbent

The thesis studies the influences of the desulfurization and denitrification efficiencies with oxygen and carbon dioxide in the flue gas using the oxygen-rich high active adsorbent in the optimized reaction conditions, and the inter-influence between sulfur dioxide and nitrogen oxide in a fixed bed; the kinetic parameters of heterogeneous reactions on denitrification; the products of the desulfurization and denitrification reactions are investigated by chemical analysis, physical property analysis and the SEM and X-ray analysis. The results show that the oxygen has a help to improve the desulfurization and denitrification efficiencies; the carbon dioxide is adverse to the desulfurization efficiencies and favorable to the denitrification efficiencies. There is a mutual enhancement between sulfur dioxide and nitrogen oxide. The research finds the reaction orders with respect to NO and C are 2.2 and 0.7, respectively. The activation energy in that reaction is 66.89kJ/mol. The results of products analysis show that the highly active adsorbent has a porous surface. The C adsorbent has a bigger BET surface and monolayer volume than M. The main products of the desulfurization and denitrification reactions were sulfate and nitrate, respectively. The reductive production of C is chloride. On the basis of above results, the main reactions and the mechanism of desulfurization and denitrification in the fixed bed are discussed.