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Studies of the effects of metallic and gaseous additives in the control of soot formation in diffusion flames

✍ Scribed by J.B.A. Mitchell; D.J.M. Miller

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
773 KB
Volume
75
Category
Article
ISSN
0010-2180

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✦ Synopsis

An examination of soot growth patterns on a charged probe in a fuel-rich ethylene diffusion flame, with both metallic salt and gaseous additives present, has been made. Alkali salts, which are effective soot inhibitors, cause neutralization of soot particles, leading to reduced particle size and subsequent enhanced oxidation. The addition of freon to the fuel led to greatly increased sooting, while SF6 addition led to a reduction of soot emission. Both compounds are strongly electrophilic. The role of electrons in soot control was investigated but no correlation with electron density could be found.

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