环境工程学报2017，Vol.11Issue(9)：5071-5077,7.DOI:10.12030/j.cjee.201609177
O3氧化-SO32-还原燃煤烟气脱硝
Flue-gas De-NOx technology with O3 oxidation-SO32-reduction process
摘要
Abstract
Simultaneous desulfurization and denitrification of flue gas is a trend in the research and application for the pollution control technology.In this paper, we conduct the experiments according to the following thoughts.First, we ensure that the NO in flue gas oxidized to NO2 by ozone injection.Then we use sulfite solution as the absorbent to analysis the absorption process.It was found that the removal efficiency of NO increased with the molar ratio of O3/NO becoming higher, and when the molar ratio was 1.1, the removal efficiency of NO reached 90％.During the absorption process, the removal efficiency of NO2 reached 97％ and remained unchanged under the condition of less than 80 ℃ in temperature and 10 in pH value.By analyzing the production of the absorption process, we can know that the redox reaction between NO2and SO32-was the main reaction in De-NOx process.The mainly production in the mixture solution of Na2SO3 and NaOH after the absorption process were SO42-and N2.关键词
臭氧氧化/脱硝/湿法脱硫/亚硫酸盐氧化/同时脱硫脱硝Key words
ozone oxidation/denitrification/wet desulfurization/sulfite oxidation/simultaneous desulfurization and denitrification分类
资源环境引用本文复制引用
文少飞,李杰,商克峰,姜楠,鲁娜,吴彦..O3氧化-SO32-还原燃煤烟气脱硝[J].环境工程学报,2017,11(9):5071-5077,7.基金项目
国家自然科学基金资助项目(51477025,51507026) （51477025,51507026）
博士后科学基金面上项目(2015M580223) （2015M580223）
中国博士后科学基金特别资助(2016T90221) （2016T90221）
