Identification of oxygenated ions in premixed flames of dimethyl ether and oxygen

Østergaard, Lars Frøsig; Egsgaard, Helge; Hammerum, Steen

doi:10.1039/b303154c

Cited by 6 publications

(5 citation statements)

References 59 publications

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“…Besides, we want to point out that our experimental and theoretical spectra agree well with the data of other researchers, see e.g. [6,22,34]: in relation to the most prevalent ion C 2 H 3 O + and H 3 O + ; [2,7,35] in relation to the C 3 H 5 O + (C 3 H +.…”

Section: Model Verification For the Stoichiometric Propane/air Mixturesupporting

confidence: 89%

See 1 more Smart Citation

Evolution of charged species in propane/air flames: mass-spectrometric analysis and modelling

Rodrigues¹,

Agneray²,

Jaffrezic³

et al. 2006

Plasma Sources Sci. Technol.

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Experimental and modelling studies of ion formation during combustion of propane/air mixtures are presented. The positive and negative ions mass/charge spectra in propane/air stoichiometric flame at atmospheric pressure are recorded in the range from 0 to 512 atomic mass units. The C 2 H 3 O + and HCO − 2 ions are found to be the most abundant ionic species in the flame front region. By increasing the distance from the flame front the ion composition changes significantly. In the burnt gas region the H 3 O + , NO + , CO − 3 , HCO − 3 ions are found to be the major charged species. To explain the experimental results the extended kinetic model describing the ion formation in flame and in the extraction system of the mass-spectrometer as well as ion-soot interaction is developed. It is shown that the ionic clusters, which are observed experimentally, form during the adiabatic expansion in the extraction system, and the presence of soot particles may change the total positive and negative ion concentrations in the gas phase.

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Section: Model Verification For the Stoichiometric Propane/air Mixturesupporting

confidence: 89%

“…Moreover, these ions were identified as methoxymethyl cation, CH 3 OCH + 2 , and protonated dimethyl ether, (CH 3 ) 2 OH + , in flames of dimethyl ether with oxygen [35]. However, there might also be some contributions from hydrated C 3 H +.…”

Section: Resultsmentioning

confidence: 99%

Evolution of charged species in propane/air flames: mass-spectrometric analysis and modelling

Rodrigues¹,

Agneray²,

Jaffrezic³

et al. 2006

Plasma Sources Sci. Technol.

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show abstract

“…The GRI-Mech 3.0 mechanism is augmented with free electrons, 10 ions, and 67 reactions from the ion chemistry mechanism assembled by Prager et al [11]. O + possess the acetyl cationic [52] and the methoxymethyl cationic [53] structures, respectively. Two neutral species (CH 3 CO and C 2 H 5 OH) are added to the set of species in GRI-Mech 3.0, since they appear as product species in selected ion chemistry reactions.…”

Section: Kinetic and Thermodynamic Datamentioning

confidence: 99%

Uncertainty quantification of ion chemistry in lean and stoichiometric homogenous mixtures of methane, oxygen, and argon

Kim

Rizzi

Cheng

et al. 2015

Combustion and Flame

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“…In addition, soot is electrically active; though whether this results from ionic precursors, thermal ionization, charge attachment, or some combination is not clear [15][16][17][18][19][20]. However, this property may be used to both detect formation and precipitate soot from the reaction zone.…”

Section: Introductionmentioning

confidence: 99%

Detailed characterization of DC electric field effects on small non-premixed flames

Karnani

Dunn‐Rankin

2015

Combustion and Flame

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Identification of oxygenated ions in premixed flames of dimethyl ether and oxygen

Cited by 6 publications

References 59 publications

Evolution of charged species in propane/air flames: mass-spectrometric analysis and modelling

Evolution of charged species in propane/air flames: mass-spectrometric analysis and modelling

Uncertainty quantification of ion chemistry in lean and stoichiometric homogenous mixtures of methane, oxygen, and argon

Detailed characterization of DC electric field effects on small non-premixed flames

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