| 吡咯和吡啶火焰中含氮燃烧中间体的探测 |
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| 引用本文： | 张清,田振玉,李玉阳,张泰昌,王晶,齐飞.吡咯和吡啶火焰中含氮燃烧中间体的探测[J].中国科学技术大学学报,2006,36(7):793-796. |
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| 作者姓名： | 张清 田振玉 李玉阳 张泰昌 王晶 齐飞 |
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| 作者单位： | [1]安徽工业大学数理学院,安徽马鞍山243002 [2]中国科学技术大学国家同步辐射实验室,安徽合肥230029 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程项目，高等学校博士学科点专项科研项目 |
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| 摘 要： | 利用同步辐射(SR)和分子束质谱(MBMS)研究了两种含氮燃料(吡咯和吡啶)分别在贫燃和富燃条件下的4个低压预混火焰.通过测量光电离质谱和扫描光电离效率谱(PIE),鉴别了火焰中的燃烧中间体的化学结构.结果表明在富燃火焰中容易产生乙炔(C2H2),而在贫燃火焰中则更容易形成一氧化氮(NO)/甲醛(HCHO).在4个火焰中同时观察到了HCN、C2H4、C3H4、C2H2O、HNCO、C3HN、C3H3N、C3H5N、C4H3N和C6H6等稳定中间体以及CH3、C3H3和C2H2N等自由基.
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| 关 键 词： | 吡咯 吡啶 低压预混火焰 同步辐射 分子束质谱 |
| 文章编号： | 0253-2778(2006)07-0793-04 |
| 收稿时间： | 06 20 2006 12:00AM |
| 修稿时间： | 07 10 2006 12:00AM |
Detection of intermediates formed in nitrogen-containing compounds flames |
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| ZHANG Qing , TIAN Zhen-yu, LI Yu-yang, ZHANG Tai-chang, WANG Jing, QI Fei.Detection of intermediates formed in nitrogen-containing compounds flames[J].Journal of University of Science and Technology of China,2006,36(7):793-796. |
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| Authors: | ZHANG Qing TIAN Zhen-yu LI Yu-yang ZHANG Tai-chang WANG Jing QI Fei |
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| Institution: | 1. School of Mathematics and Physics, Anhui University of Technology, Maanshan 243002, China;2 National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029,China |
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| Abstract: | Four premixed pyrrole and pyridine flames were investigated with tunable synchrotron photoionization and molecular-beam mass spectrometry.Chemical structures of flame intermediates were identified by measurements of photoionization mass spectrometry and photoionization efficiency(PIE) spectra.The results indicate that acetylene is a dominant intermediate in fuel-rich flames whereas nitric oxide and formaldehyde have significant concentration in fuel-lean flames.Stable intermediates,such as HCN,C_(2)H_(4),C_(3)H_(4),C_(2)H_(2)O,HNCO,C_(3)HN,C_(3)H_(3)N,C_(3)H_(5)N,C_(4)H_(3)N and C_(6)H_(6),and radicals like CH_(3),C_(3)H_(3) and C_(2)H_(2)N are observed in the four flames. |
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| Keywords: | pyrrole pyridine low pressure premixed flame synchrotron radiation molecular-beam mass spectrometry |
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