The effect of allene addition on the structure of a rich C{sub 2}H{sub 2}/O{sub 2}/Ar flame

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Combustion and Flame

DOI:https://doi.org/10.1016/0010-2180(95)00227-8· OSTI ID:251083

Miller, J A; Volponi, J V ^[1]; Pauwels, J F ^[2]

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1. Sandia National Labs., Livermore, CA (United States). Combustion Research Facility
2. Univ. des Sciences et Technologies de Lille, Villeneuve d`Ascq (France)

The authors have studied the effects of adding allene (C{sub 3}H{sub 4}) to a rich ({phi} = 1.67) C{sub 2}H{sub 2}/O{sub 2}/Ar flame. Temperatures were measured by thermocouple and by OH laser-induced fluorescence. Stable species profiles were determined from mass spectrometer measurements using a quartz microprobe, and OH and CH concentrations were determined using LIF. The experiments were analyzed with the aid of a chemical kinetic model. The most noteworthy result of the experiments is that significant quantities of benzene appear in the flame with allene, whereas there is no detectable benzene in the pure acetylene flame. This result lends support to the theory that the reaction between two propargyl radicals is an important ``cyclization step`` in flames. Various aspects of the flame chemistry are discussed in depth.

• OSTI ID: 251083
• Journal Information: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 4 Vol. 105; ISSN CBFMAO; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
40 CHEMISTRY
ACETYLENE
ALLENE
BENZENE
CATALYTIC EFFECTS
COMBUSTION KINETICS
FLAMES
FUEL ADDITIVES
GAS ANALYSIS
MATHEMATICAL MODELS
MORPHOLOGY
POLYCYCLIC AROMATIC HYDROCARBONS
PRECURSOR
SOOT
TEMPERATURE MEASUREMENT