| O_2/N_2、O_2/CO_2和O_2/CO_2/NO气氛下煤粉燃烧NO_x排放特性 |
| |
| 引用本文： | 张永春,张军,盛昌栋,赵亮,谢芳,陈洁,刘杨先.O_2/N_2、O_2/CO_2和O_2/CO_2/NO气氛下煤粉燃烧NO_x排放特性[J].化工学报,2010,61(1). |
| |
| 作者姓名： | 张永春 张军 盛昌栋 赵亮 谢芳 陈洁 刘杨先 |
| |
| 作者单位： | 东南大学能源与环境学院,江苏,南京,210096 |
| |
| 基金项目： | 国家自然科学基金国际合作交流项目，华中科技大学煤燃烧国家重点实验室开放基金 |
| |
| 摘 要： | 利用滴管炉研究了O2/N2、O2/CO2和O2/CO2/NO气氛下煤燃烧过程中NOx的排放特性。实验结果表明,在O2/N2和O2/CO2气氛下,高温或高O2浓度均使NO排放量增加。O2/CO2气氛下NO排放量比O2/N2气氛下NO排放量低大约30%~40%。在O2/CO2/NO气氛下,温度不同时,O2浓度变化对NO排放量的影响规律不同,对循环NO降解的影响规律也不同。高温不利于循环NO降解。随停留时间的延长NO排放量出现两个峰值。
|
| 关 键 词： | O_2/CO_2气氛 煤粉燃烧 NO_x排放 循环NO |
NO_x emission characteristics of pulverized coal combustion in O_2/N_2,O_2/CO_2 and O_2/CO_2/NO atmospheres |
| |
| ZHANG Yongchun,ZHANG Jun,SHENG Changdong,ZHAO Liang,XIE Fang,CHEN Jie,LIU Yangxian.NO_x emission characteristics of pulverized coal combustion in O_2/N_2,O_2/CO_2 and O_2/CO_2/NO atmospheres[J].Journal of Chemical Industry and Engineering(China),2010,61(1). |
| |
| Authors: | ZHANG Yongchun ZHANG Jun SHENG Changdong ZHAO Liang XIE Fang CHEN Jie LIU Yangxian |
| |
| Abstract: | NO_x emission characteristics during pulverized coal combustion in O_2/CO_2,O_2/N_2 and O_2/CO_2/NO atmospheres were studied by using a drop tube furnace.The results showed that in the O_2/N_2,atmosphere NO emission increased with the increase of O_2 concentration or temperature.The same tendency of NO_x emission was also found in the O_2/CO_2 atmosphere.However,the NO_x emission in the O_2/CO_2 atmosphere was 30%-40% lower than that in the O_2/N_2 atmosphere.In the O_2/CO_2/NO atmosphere,the effects of O_2 concentration on NO_x emission as well as on recycled-NO reduction were different at different temperatures.High temperature did not favor recycled-NO reduction.There were two peak values of NO_x emission with the increase of residence time. |
| |
| Keywords: | O_2/CO_2 atmosphere pulverized coal combustion NO_x emission recycled-NO |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
