| SO2and NOx emitted by coal fired power plant combustion can cause acid rain and secondary pollutants, they has seriously affected the production and life of human. The traditional desulfurization and denitration technology clean the flue gas step by step which has many shortcomings such as high equipment investment, large covering area and complex system. The development of flue gas multiple pollutant control technology has a very important meaning because it’s simple, reliable and suitable for China’s conditions. Therefore, this article aims at researching the industrial boilers desulfurization and denitration situation and finding the existing problems, develops ozone oxidation technology to achieve efficient removal from the flue gas pollutants oxidation, which can reach a high desulfurization and denitration efficiency. Further more, this paper researches the using of advanced oxidation technology to upgrade the existing industrial boiler desulphurization equipment for flue gas pollutants control. Finally the paper analyzes the design of multiple pollutants removal process and economic feasibility. The experimental results show that using ozone can achieve rapid transformation of nitric oxide, no secondary pollution, and the best conditions can get more than95%of desulfurization efficiency, and90%of the denitration efficiency. In order to reduce the consumption of O3and O3/NOx molar ratio, using a variety of catalysts catalyst assistant experiment. Screening study shows that, the zinc salt has a better catalytic effect. We design the unique two-cycle desulfurization and denitration absorption equipment, according to some gas smoke calculation in design. Technical and economic feasibility analysis shows that, ozone and desulfurization advanced oxidation denitration process have very good prospects, but the ozone cost make it hard to apply widely.we should increase the ozone oxidation of auxiliary research to reduce the cost in further study. |
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