Titre :

Comparative experimental and modeling study of the low- to moderate-temperature oxidation chemistry of 2,5-dimethylfuran, 2-methylfuran, and furan

Auteur(s) :

Tran, Luc-Sy [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Wang, Zhandong [Auteur]
National Synchrotron Radiation Laboratory [NSRL]
University of Science and Technology of China [Hefei] [USTC]
Carstensen, Hans-Heinrich [Auteur]
Universidad de Zaragoza = University of Zaragoza [Saragossa University] = Université de Saragosse
Fundación Agencia Aragonesa para la Investigación y el Desarrollo [ARAID]
Hemken, Christian [Auteur]
Universität Bielefeld = Bielefeld University
Battin-Leclerc, Frédérique [Auteur]
Laboratoire Réactions et Génie des Procédés [LRGP]
Kohse-Höinghaus, Katharina [Auteur]
Universität Bielefeld

Titre de la revue :

COMBUSTION AND FLAME

Nom court de la revue :

Combustion and Flame

Numéro :

181

Pagination :

251-269

Éditeur :

Elsevier BV

Date de publication :

2017-07

ISSN :

0010-2180

Discipline(s) HAL :

Sciences de l'ingénieur [physics]
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]

Résumé en anglais : [en]

The reaction chemistry of furanic fuels, proposed as next-generation bio-derived fuels, has been a target of recent studies. However, quantitative intermediate species profiles at low- to moderate-temperature (LMT) conditions ...
Lire la suite >The reaction chemistry of furanic fuels, proposed as next-generation bio-derived fuels, has been a target of recent studies. However, quantitative intermediate species profiles at low- to moderate-temperature (LMT) conditions remain scarce. The present paper reports the first systematic full speciation dataset in the temperature range 730–1170 K for three furanic fuels, 2,5-dimethylfuran (DMF), 2-methylfuran (MF), and furan, measured for different equivalence ratios under near-identical LMT conditions in a flow reactor at 1 bar. More than 35 species including reactants, intermediate species, and products were analyzed using electron ionization (EI) molecular-beam mass spectrometry (MBMS). These experimental results provided motivation to extend a previous single joint mechanism for the three furanic fuels, developed for the high-temperature regime in low-pressure premixed flames, to include the LMT oxidation chemistry. A decisive difference of the present mechanism versus all previously reported models is a more complete description of fuel radical reactions for LMT oxidation, obtained from theoretical calculations of thermodynamic properties and rate constants. The experimentally observed differences in fuel conversion behavior and species distribution between the three fuels have been compared to model predictions using the newly extended mechanism. The dependence of fuel conversion on equivalence ratio decreases significantly from DMF to furan, a behavior consistent with the different number of lateral methyl groups in the fuel structure. All three furanic fuels, especially DMF, produce several highly toxic oxygenated species including acrolein, methyl vinyl ketone, furfural, and phenol. These toxic species were found to be products of the primary reactions of these fuels, and these undesirable trends could be explained satisfactorily by the present model, pointing to some caution with regard to the potential emission spectra under LMT conditions.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS

Collections :

• Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522

Équipe(s) de recherche :

PhysicoChimie de la Combustion (PC2)

Date de dépôt :

2022-11-15T10:08:37Z
2022-11-15T10:53:21Z