ESR and mass spectrometric studies of methanol combustion. II. Correlation between labile and stable chemical species in methanol-oxygen-argon flame at low pressure.
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概要
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In order to experimentally elucidate the chemical reactions of methanol combustion, the concentration profiles of ten chemical species were determined in stoichiometric CH<SUB>3</SUB>OH–O<SUB>2</SUB>–Ar flat flame at low pressure, 1.11×10<SUP>4</SUP> Pa. The concentrations of three labile intermediates (H, O, and OH) as well as that of stable O<SUB>2</SUB> molecules, were measured by means of the probe-sampling-ESR method. The concentrations of six stable species (CH<SUB>3</SUB>OH, CH<SUB>2</SUB>O, CO, CO<SUB>2</SUB>, H<SUB>2</SUB>, and H<SUB>2</SUB>O) were measured using a quadrupole mass spectrometer. The rates of the net chemical formation (or decay) of these species were determined by subtracting the effect of diffusion from their observed concentration profiles, and were examined on the basis of the reaction mechanisms previously proposed for methanol combustion. The experimental results were found to be consistent with the oxidation pathway CH<SUB>3</SUB>OH→CH<SUB>2</SUB>OH→CH<SUB>2</SUB>O→CHO→CO→CO<SUB>2</SUB>. The results also showed that the reaction CH<SUB>2</SUB>OH+O<SUB>2</SUB>→CH<SUB>2</SUB>O+HO<SUB>2</SUB> is an important pathway for O<SUB>2</SUB> consumption.
- 公益社団法人 日本化学会の論文
著者
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Yoshida Hiroshi
Faculty Of Math Kyushu Univ.
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Taniguchi Masayuki
Faculty of Engineering, Hokkaido University
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Yoshioka Toshiharu
Faculty of Engineering, Hokkaido University
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Yoshida Hiroshi
Faculty of Engineering, Hokkaido University
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