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Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure
Gao Jian1,3; Zhao Dai-Qing1; Wang Xiao-Han1; Jiang Li-Qiao1; Yang Hao-Lin1; Yuan Tao2; Yang Jiu-Zhong2
2010
Source PublicationACTA PHYSICO-CHIMICA SINICA
Volume26Issue:1Pages:23-28
AbstractLow 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 (PEE) spectra, and the mole fraction profiles of these species at different flame positions were presented. Similarities and differences of main intermediate formation characteristics between the two flames were analyzed based on derived reaction mechanisms. Experimental results show that both flames contain the same intermediates such as CH3, CH4, C2H2, CH2O, CH2O, CH3OH, CH2=C=O, CH3CHO, and CH2CHOH. In the DME flame, the concentration of the C-2 species is much higher than that of the C-2 species, i.e., C-2 intermediates tend to form rather than C-2 intermediates in a DME flame. In addition, formaldehyde is the dominant C-1 species in each flame. The concentrations Of C-2 species like ethylene, acetaldehyde, acetylene, and ketene in the ethanol flame are remarkably higher than that found in the DME flame.
SubtypeArticle
KeywordSynchrotron Radiation Single-photon Ionization Dimethyl Ether Ethanol Premixed Laminar Flame
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB20091216
WOS Subject ExtendedChemistry
WOS KeywordPHOTOIONIZATION MASS-SPECTROMETRY ; FUEL-RICH ; OXIDATION ; CHEMISTRY ; KINETICS ; DME
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical
WOS IDWOS:000273849300005
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10307
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Gao Jian,Zhao Dai-Qing,Wang Xiao-Han,et al. Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure[J]. ACTA PHYSICO-CHIMICA SINICA,2010,26(1):23-28.
APA Gao Jian.,Zhao Dai-Qing.,Wang Xiao-Han.,Jiang Li-Qiao.,Yang Hao-Lin.,...&Yang Jiu-Zhong.(2010).Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure.ACTA PHYSICO-CHIMICA SINICA,26(1),23-28.
MLA Gao Jian,et al."Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure".ACTA PHYSICO-CHIMICA SINICA 26.1(2010):23-28.
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