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首页> 外文期刊>RSC Advances >Radical-dominated reaction of CO–NO on a CaFe2O4 surface in sintering flue gas recirculation
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Radical-dominated reaction of CO–NO on a CaFe2O4 surface in sintering flue gas recirculation

机译：Co-No在烧结烟气再循环中Co-No在CaFe2O4表面上的激进统治反应

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The catalytic reduction behaviours between NO and CO on a CaFe _(2) O _(4) surface were studied using flue gas recirculation. The reaction mechanism and control principle were investigated via experiment and theoretical calculations. The experiment results show that CaFe _(2) O _(4) can catalyse the reduction of NO by CO, and the NO conversion rate increases with the increase in CO concentration. The theoretical calculations indicate that the CO–NO reaction on CaFe _(2) O _(4) surfaces complies with the Eley–Rideal mechanism, and the reaction path is controlled by nitrogen, oxygen and isocyanate radicals. Specifically, the dissociation of NO into nitrogen and oxygen radicals, and the formation of subsequent isocyanate radicals dominate the reaction. The results provide new insight into the intrinsic reaction mechanism and the meso-scale control principle, allowing us to propose a novel process design scheme to improve the NO _( x ) emission reduction efficiency in the flue gas recirculation process.
机译：使用烟道气再循环研究了咖啡馆_（2）o _（4）表面的NO和CO之间的催化还原行为。通过实验和理论计算研究了反应机理和控制原理。实验结果表明，咖啡馆_（2）O _（4）可以通过CO催化NO的减少，并且随着CO浓度的增加，无转化率增加。理论计算表明，咖啡馆_（2）O _（4）表面上的CO-NO反应符合ELEY - rideal机制，反应路径由氮，氧和异氰酸酯自由基控制。具体地，将NO解离氮气和氧自由基，以及随后的异氰酸酯基团的形成主导了反应。结果提供了新的洞察内在反应机制和中学规模控制原理，允许我们提出一种新的工艺设计方案，以改善烟气再循环过程中的NO _（X）减排效率。

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