烧结烟气中CO与NO气相反应数值模拟  

Numerical simulation of CO and NO gas-phase reaction in sintering flue gas

作　　者：李杰 赵跃 赵欣锋 张纹郗 杨爱民 张遵乾 LI Jie;ZHAO Yue;ZHAO Xinfeng;ZHANG Wenxi;YANG Aimin;ZHANG Zunqian(School of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063210,Hebei,China;School of Science,North China University of Science and Technology,Tangshan 063210,Hebei,China)

机构地区：[1]华北理工大学冶金与能源学院,河北唐山063210 [2]华北理工大学理学院,河北唐山063210

出　　处：《中国冶金》2025年第2期102-113,共12页China Metallurgy

基　　金：唐山市重点研发计划资助项目(22150232 J);第六师五家渠市科技计划资助项目(2410)。

摘　　要：在烧结过程中产生的烧结烟气含有大量NO以及CO,烟气中的各个组分在热力学与动力学条件合适的情况下,能够互相反应并放出热量。为了研究烧结烟气在不同条件下发生化学反应的过程中CO与NO质量分数的变化规律,使用了CHEMKIN软件中的完全搅拌反应器(PSR)模块对反应过程进行建模,并针对CO和NO质量分数以及系统温度3个指标进行了化学反应路径以及敏感性的分析。研究结果表明,在反应过程中,温度、氧气质量分数以及水蒸气质量分数在反应过程中都会对CO和NO质量分数产生影响,其中温度对降低NO和CO质量分数的影响最大,水蒸气其次,氧气质量分数影响最小。The sintering flue gas generated in the sintering process contains a large amount of NO and CO,and the components in the flue gas can react with each other and release heat under suitable thermodynamic and kinetic conditions.In order to study the change law of mass fraction of CO and NO in the process of chemical reaction of sintering flue gas under different conditions,the complete stirred reactor(PSR)module in CHEMKIN software was used to model the reaction process,and the chemical reaction path and sensitivity of CO,NO and system temperature were analyzed.The research results show that,in the process of the reaction,temperature,oxygen concentration and water vapor concentration all affect the CO and NO concentrations during the reaction process,with temperature having the greatest effect on reducing NO and CO concentrations,followed by water vapor,and oxygen concentration having the least effect.

关 键 词：烧结烟气 CHEMKIN 反应路径 完全搅拌反应器 敏感性分析 

分 类 号：X757[环境科学与工程—环境工程]