Identification of combustion intermediates in a low-pressure premixed laminar 2,5-dimethylfuran/oxygen/argon flame with tunable synchrotron photoionization

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Combustion and Flame

DOI:https://doi.org/10.1016/J.COMBUSTFLAME.2009.04.002· OSTI ID:21195823

Wu, Xuesong; Huang, Zuohua; Wei, Lixia ^[1]; Yuan, Tao; Zhang, Kuiwen ^[2]

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1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)
2. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029 (China)

Low-pressure (4.0 kPa) premixed laminar 2,5-dimethylfuran (DMF)/oxygen/argon flame with an equivalence ratio of 2.0 was studied with tunable vacuum ultraviolet (VUV) synchrotron radiation photoionization and molecular-beam mass spectrometry. Photoionization mass spectra of DMF/O{sub 2}/Ar flame were recorded and the photoionization efficiency curves of the combustion intermediates were measured. Flame species, including isomeric intermediates, are identified by comparing the measured ionization energies with those reported in literatures or those calculated with Gaussian-3 procedure. More than 70 species have been detected, including furan and its derivatives, aromatics, and free radicals. Possible reaction pathways of DMF, 2-methylfuran, and furan are proposed based on the intermediates identified. DMF can be consumed by H-abstraction and pyrolysis reactions. 2-Methylfuran and furan can be consumed by H-abstraction, H-addition and pyrolysis reactions. (author)

• OSTI ID: 21195823
• Journal Information: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 7 Vol. 156; ISSN CBFMAO; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ARGON
AROMATICS
COMBUSTION KINETICS
Dimethylfurans
EFFICIENCY
FAR ULTRAVIOLET RADIATION
FURANS
LAMINAR FLAMES
MASS SPECTRA
OXYGEN
PHOTOIONIZATION
PRESSURE RANGE KILO PA
PYROLYSIS
Premixed flames
RADICALS
REACTION INTERMEDIATES
SYNCHROTRON RADIATION