摘要
对天然气再燃还原NOx建立了简化模型,该模型包括40种组分(基团)及111个基元反应。对900～1200℃下不同煤种采用天然气再燃时NOx的浓度变化进行了研究,试验表明主燃煤种的种类对还原NOx并不起主要的影响作用,高温能取得更好的NOx脱除效果,再燃量是保证再燃效果的重要因素。模型计算的结果与试验值趋势基本吻合。
A skeletal kinetic modeling of natural gas reburning was build, It included 40 species and 111 reaction equations, The NOx emissions of different coals by natural gas reburning under the temperature of 900 to 1200 centigrade were studied on an one-dimensional test-bed, The experimental results showed that the main coal type had little effect on NOx reduction, more NOx were reduced under higher temperature, and the amount of reburning gas ensured the reburning efficiency, The modeling calculation had a similar trend with the experimental result,
出处
《洁净煤技术》
CAS
北大核心
2006年第3期67-70,共4页
Clean Coal Technology
关键词
再燃
简化模型
还原机理
脱氮
reburning
skeletal modeling
reducing mechanism
NOx reduction
