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Combustion chemistry and flame structure of furan group biofuels using molecular-beam mass spectrometry and gas chromatography - Part III: 2,5-Dimethylfuran

Identifieur interne : 000028 ( PascalFrancis/Checkpoint ); précédent : 000027; suivant : 000029

Combustion chemistry and flame structure of furan group biofuels using molecular-beam mass spectrometry and gas chromatography - Part III: 2,5-Dimethylfuran

Auteurs : Casimir Togbe [Allemagne] ; Luc-Sy Tran [France] ; DONG LIU [Allemagne] ; Daniel Felsmann [Allemagne] ; Patrick Osswald [Allemagne] ; Pierre-Alexandre Glaude [France] ; Baptiste Sirjean [France] ; René Fournet [France] ; Frédérique Battin-Leclerc [France] ; Katharina Kohse-Höinghaus [Allemagne]

Source :

RBID : Pascal:14-0107739

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English descriptors

Abstract

This work is the third part of a study focusing on the combustion chemistry and flame structure of furan and selected alkylated derivatives, i.e. furan in Part I,2-methylfuran (MF) in Part II, and 2,5-dimethylfuran (DMF) in the present work. Two premixed low-pressure (20 and 40 mbar) flat argon-diluted (50%) flames of DMF were studied with electron-ionization molecular-beam mass spectrometry (EI-MBMS) and gas chromatography (GC) under two equivalence ratios (φ = 1.0 and 1.7). Mole fractions of reactants, products, and stable and radical intermediates were measured as a function of the distance to the burner. Kinetic modeling was performed using a reaction mechanism that was further developed in the present series, including Part I and Part II. A reasonable agreement between the present experimental results and the simulation is observed. The main reaction pathways of DMF consumption were derived from a reaction flow analysis. Also, a comparison of the key features for the three flames is presented, as well as a comparison between these flames of furanic compounds and those of other fuels. An a priori surprising ability of DMF to form soot precursors (e.g. 1,3-cyclopentadiene or benzene) compared to less substituted furans and to other fuels has been experimentally observed and is well explained in the model.


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Le document en format XML

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<title level="j" type="main">Combustion and flame</title>
<title level="j" type="abbreviated">Combust. flame</title>
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<term>Biofuel</term>
<term>Combustion</term>
<term>Flame structure</term>
<term>Furan derivatives</term>
<term>Gas chromatography</term>
<term>Kinetic model</term>
<term>Low pressure</term>
<term>Mass spectrometry</term>
<term>Modeling</term>
<term>Molecular beam</term>
<term>Operating conditions</term>
<term>Reaction mechanism</term>
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<keywords scheme="Pascal" xml:lang="fr">
<term>Combustion</term>
<term>Structure flamme</term>
<term>Spectrométrie masse</term>
<term>Dérivé du furane</term>
<term>Biocarburant</term>
<term>Mécanisme réaction</term>
<term>Faisceau moléculaire</term>
<term>Chromatographie phase gazeuse</term>
<term>Basse pression</term>
<term>Modèle cinétique</term>
<term>Condition opératoire</term>
<term>Modélisation</term>
<term>Furane(2,5-diméthyl)</term>
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<div type="abstract" xml:lang="en">This work is the third part of a study focusing on the combustion chemistry and flame structure of furan and selected alkylated derivatives, i.e. furan in Part I,2-methylfuran (MF) in Part II, and 2,5-dimethylfuran (DMF) in the present work. Two premixed low-pressure (20 and 40 mbar) flat argon-diluted (50%) flames of DMF were studied with electron-ionization molecular-beam mass spectrometry (EI-MBMS) and gas chromatography (GC) under two equivalence ratios (φ = 1.0 and 1.7). Mole fractions of reactants, products, and stable and radical intermediates were measured as a function of the distance to the burner. Kinetic modeling was performed using a reaction mechanism that was further developed in the present series, including Part I and Part II. A reasonable agreement between the present experimental results and the simulation is observed. The main reaction pathways of DMF consumption were derived from a reaction flow analysis. Also, a comparison of the key features for the three flames is presented, as well as a comparison between these flames of furanic compounds and those of other fuels. An a priori surprising ability of DMF to form soot precursors (e.g. 1,3-cyclopentadiene or benzene) compared to less substituted furans and to other fuels has been experimentally observed and is well explained in the model.</div>
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<s1>Combustion chemistry and flame structure of furan group biofuels using molecular-beam mass spectrometry and gas chromatography - Part III: 2,5-Dimethylfuran</s1>
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<s0>This work is the third part of a study focusing on the combustion chemistry and flame structure of furan and selected alkylated derivatives, i.e. furan in Part I,2-methylfuran (MF) in Part II, and 2,5-dimethylfuran (DMF) in the present work. Two premixed low-pressure (20 and 40 mbar) flat argon-diluted (50%) flames of DMF were studied with electron-ionization molecular-beam mass spectrometry (EI-MBMS) and gas chromatography (GC) under two equivalence ratios (φ = 1.0 and 1.7). Mole fractions of reactants, products, and stable and radical intermediates were measured as a function of the distance to the burner. Kinetic modeling was performed using a reaction mechanism that was further developed in the present series, including Part I and Part II. A reasonable agreement between the present experimental results and the simulation is observed. The main reaction pathways of DMF consumption were derived from a reaction flow analysis. Also, a comparison of the key features for the three flames is presented, as well as a comparison between these flames of furanic compounds and those of other fuels. An a priori surprising ability of DMF to form soot precursors (e.g. 1,3-cyclopentadiene or benzene) compared to less substituted furans and to other fuels has been experimentally observed and is well explained in the model.</s0>
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<s0>001C04B01</s0>
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<s0>215</s0>
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<s5>12</s5>
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