Shock tube and modeling study of ketene oxidation

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Combustion and Flame

DOI:https://doi.org/10.1016/0010-2180(95)00252-9· OSTI ID:264400

Hidaka, Yoshiaki; Kimura, Kenichi; Hattori, Kenji; Okuno, Tatsuya ^[1]

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1. Ehime Univ., Matsuyama (Japan). Dept. of Chemistry

Ketene (CH{sub 2}CO) and ketyl radicals (CHCO) are produced in acetylene combustion. Ketene oxidation was studied behind reflected shock waves in the temperature range 1,050--2,050 K at total pressures between 1.1 and 3.0 atm using ketene-O{sub 2} and ketene-N{sub 2}O mixtures diluted with Ar. Ketene decay and carbon dioxide production were followed using time-resolved UV-absorption at 200 nm and time-resolved IR-emission at 4.24 {micro}m, respectively. Production yields for reaction times between 1.7 and 2.1 ms were also studied using a single-pulse method. From a computer-simulation study with a 85-reaction mechanism, rate-constant expressions that could explain all the data were derived.

• OSTI ID: 264400
• Journal Information: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 1-2 Vol. 106; ISSN CBFMAO; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
40 CHEMISTRY
ABSORPTION SPECTROSCOPY
ACETYLENE
COMBUSTION KINETICS
COMPUTERIZED SIMULATION
EMISSION SPECTROSCOPY
INFRARED RADIATION
KETENES
MATHEMATICAL MODELS
NITROUS OXIDE
OXIDATION
OXIDIZERS
OXYGEN
SHOCK TUBES
ULTRAVIOLET RADIATION