天然气再燃还原NO的动力学模拟  

Kinetic Modeling of Nitric Oxide Reduction by Natural Gas in Reburning Conditions

作　　者：姚向东[1] 张忠孝[1] 邱莉莉[1] 朱基木[2] 

机构地区：[1]上海理工大学 [2]上海宝钢发电厂

出　　处：《电站系统工程》2004年第4期13-15,共3页Power System Engineering

基　　金：国家863重点课题资助(2002AA527054)

摘　　要：在考虑再燃机理中一些关键反应步骤的基础上,建立了天然气再燃还原NO的化学动力学模型,包含40种组分和165个化学基元反应。介绍了NO还原的简化反应路径。模型的计算结果表明:NO的分解与HCN、CHi和CO组分的关联性极大;再燃区过量空气系数在0.7～0.75之间、温度在1 500～1 550 K之间时还原效果最好。The reduction of nitric oxide (NO) by natural gas in simulated conditions of the reburning zone is studied. A detailed chemical kinetic modeling of NO reduction was performed, including 40 species and 165 reversible reactions. The procedure of NO reduction by natural gas is described. Computationally the largest drops in NO occurred in a region where reburning zone stoichiometric ratio was between 0.7 and 0.75, and temperatures were 1500K and 1550K.

关 键 词：氮氧化物 排放控制 动力学模拟 天然气再燃 

分 类 号：X511[环境科学与工程—环境工程]