O3氧化结合化学吸收同时脱硫脱硝的动力学及热力学研究

摘要

构建了O3氧化多种污染物的反应机制,并对O3氧化SOx、NOx过程进行动力学模拟,然后利用热力学原理计算出Ca(OH)2和CaCO3湿法烟气同时脱硫脱硝吸收反应达到平衡时SOx和NOx的分压力.结果表明,Ca(OH)2作吸收剂湿法烟气同时脱硫脱硝比CaCO3作吸收剂效果好,而且两者几乎100％地去除烟气中的SOx和NOx.%The reaction mechanism of pollutants oxidation by ozone was established in this paper, and the process of SOX and Nox ozone oxidation were simulated with dynamics. The wet flue gas simultaneous desulfurization and denitrification by ozone oxidation integrating with chemical scrubber (Ca(OH)2 or CaCO3) was conducted to calculate the equilibrium state partial pressure of Sox and Nox by thermodynamic theory. The results showed that Ca(OH)2 as chemical scrubber was better than CaCO3 in simultaneous removal of SOX and Nox,while both of them reached nearly 100% of Sox and Nox removal from flue gas.