| 二甲醚和乙醇低压层流预混火焰的对比研究 |
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| 引用本文： | 高健,赵黛青,汪小憨,蒋利桥,杨浩林,袁涛,杨玖重.二甲醚和乙醇低压层流预混火焰的对比研究[J].物理化学学报,2010,26(1):23-28. |
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| 作者姓名： | 高健 赵黛青 汪小憨 蒋利桥 杨浩林 袁涛 杨玖重 |
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| 作者单位： | Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China; Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| 基金项目： | 国家自然科学基金青年基金，广东省自然科学基金 |
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| 摘 要： | 利用分子束质谱结合真空紫外同步辐射光电离技术对相同燃烧条件下的低压层流预混二甲醚/氧气/氩气和乙醇/氧气/氩气火焰进行研究.通过测量光电离效率曲线,识别了二甲醚和乙醇火焰的中间物种,得到相应的火焰质谱;通过测量火焰中各物种在燃烧炉炉膛各位置的电离信号强度,得到了各物种的摩尔分数分布曲线.结合两种燃料分子不同的化学结构及详细的燃烧化学反应机理,分析了两火焰中间物种生成特性的异同.研究结果表明:甲醛为两火焰中最主要的C1中间物种;二甲醚火焰趋向于生成C1中间物种,C2物种摩尔分数较低;乙醇火焰中乙醛、乙烯、乙炔和乙烯酮等C2中间物种的摩尔分数明显高于二甲醚火焰中的值.
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| 关 键 词： | 同步辐射 单光子电离 二甲醚 乙醇 层流预混火焰 |
| 收稿时间： | 2009-07-14 |
| 修稿时间： | 2009-09-22 |
Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure |
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| GAO Jian,ZHAO Dai-Qing,WANG Xiao-Han,JIANG Li-Qiao,YANG Hao-Lin,YUAN Tao,YANG Jiu-Zhong.Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure[J].Acta Physico-Chimica Sinica,2010,26(1):23-28. |
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| Authors: | GAO Jian ZHAO Dai-Qing WANG Xiao-Han JIANG Li-Qiao YANG Hao-Lin YUAN Tao YANG Jiu-Zhong |
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| Institution: | Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China; Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| Abstract: | Low pressure premixed laminar dimethyl ether(DME)/oxygen/argon and ethanol/oxygen/argon flames(equivalence ratio: 1.0) were studied by molecular-beam sampling mass spectrometry(MBMS) combined with the tunable synchrotron radiation photoionization technique.Combustion intermediates were identified by measuring photoionization efficiency(PIE) spectra,and the mole fraction profiles of these species at different flame positions were presented.Similarities and differences of main intermediate formation character... |
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| Keywords: | Synchrotron radiation Single-photon ionization Dimethyl ether Ethanol Premixed laminar flame |
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