Inhibition of opposed jet methane-air diffusion flames. The effects of alkali metal vapours and organic halides
✍ Scribed by R. Friedman; J.B. Levy
- Publisher
- Elsevier Science
- Year
- 1963
- Tongue
- English
- Weight
- 662 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0010-2180
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✦ Synopsis
Flame strengths of opposed-jet laminar methane-air diffusion Fames were measured by the techniaue of Potter et al.. with additives in the methane stream. Owanic bromides and chEoridLes we>e revealed as inhibitors by this technique, with relative effectiveness of the various inhibitors in line with previously reported results for premixed flames. Introduction of potassium vapour in the fuel stream up to molar K/CHd ratios of 1116.4 gave no inhibiting effect, although bromine compounds at this level were quite powerful inhibitors. The mechanism of inhibition by alkali metal salts with oxygen-containing anions is discussed; it is proposed that gaseous potassium hydroxide removes H and OH radicals via KOH-kH + HOHfK and KOH+OH + HOH+KO. The mechanism is consistent with all known facts including the present results.