| As the two serious problems of sustainable development in today’s world, energyand the environment are getting more and more attention. Sulfur dioxide and nitrogenoxides generated in the process of energy utilization affect the ecological environmentand human health all the time. Existing flue gas purification technology at home andabroad of desulfurization and denitration is often completed in multiple independentsystem. Not only occupies an area of big, grading system is complex, and the cost ofequipment investment and operation is higher, so the development of compactstructure, low investment and operation cost of pollutants joint removal processes forintegration is the development trend of flue gas.This topic has carried on the thorough analysis on the flue gas desulfurizationand denitration technology, especially the wet desulfurization and denitrationtechnology. At the same time, the basic properties and application research progressof sodium perborate were set forth. We screening catalyst for the desulfurization anddenitration by sodium perborate, and determined the reagent M as the best catalyst.By single factor experiments of catalyst, reaction temperature, residence time andinitial concentration of SO2/NO influence on simulating flue gas desulfurization anddenitration efficiency, we determined the optimum process conditions, and improvedexperiment research. Under the optimum conditions, which the quality ratio of M andsodium perborate was2.5:100, the reaction temperature was50~60℃, and residencetime was1.1~1.4s, the best removal efficiency of SO2could reach almost99%, andthe highest removal efficiency of NO could reach73%. After improvement, theremoval efficiency of sulfur dioxide and nitric oxide were almost100%and86%respectively on the same conditions. Precision of the experiment data being highshowed that the proposed wet flue gas desulfurization and denitration technologyusing new new-type absorbent stable running, has a high potential for industrialapplication. |
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