焦炉分段加热技术对NO_x生成的影响  

Influence of multi-stage heating technology to the generation of NO_x

作　　者：田宝龙[1] 朱灿朋 鲁彦[1] 郭庆祥[1] 王鑫[2] 

机构地区：[1]北京首钢国际工程技术有限公司,北京100043 [2]天津大学化工学院,天津300072

出　　处：《燃料与化工》2016年第1期4-8,11,共6页Fuel & Chemical Processes

摘　　要：采用CFD数值模拟方法对焦炉燃烧室的温度分布及NO_x浓度场进行了研究,分析了不同燃烧介质下分段加热技术的应用效果及不同空气分配比例对NO_x生成的影响。模拟结果表明在采用焦炉煤气加热条件下,空气分段加热技术能有效提高燃烧室高向温度分布均匀性,降低NO_x的生成量。By the adoption of CFD modeling,this paper studies the temperature distribution in the combustion chamber of coke oven and NO_x concentration field,and analyzes the effect of multi-stage heating under different combustion media and influence of different air proportion to the generation of NO_x. The modeling result shows that with coke oven gas,the multi-stage heating technology can effectively improve the uniformity of vertical temperature distribution,and reduce the generation of NO_x.

关 键 词：分段加热 氮氧化物 计算流体力学 数值模拟 

分 类 号：TQ522.16[化学工程—煤化学工程]