The effect of sulfur dioxide on soot and polycyclic aromatic hydrocarbon formation in premixed ethylene flames

Journal Article · Tue Jan 31 23:00:00 EST 1989 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(89)90095-3· OSTI ID:6180226

Lawton, S A

The effects of sulfur dioxide on soot formation and on concentrations of polycyclic aromatic hydrocarbon (PAH) species have been investigated in a premixed ethylene-oxygen-argon flame. Sulfur dioxide reduces PAH concentrations and reduces the soot volume fraction without affecting the number density, coagulation rate, or the decay constant for the surface reactivity of the soot particles. these effects parallel those previously observed for oxygen addition to rich flames, and are consistent with consumption of SO/sub 2/ in the sooting region. The oxygen and sulfur atoms become available for the formation of compounds such as CO/sub 2/ and CS/sub 2/, thereby reducing the amount of carbon available for soot growth.

• Research Organization: McDonnell Douglas Research Labs., St. Louis, MO (US)
• OSTI ID: 6180226
• Journal Information: Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 75:2; ISSN CBFMA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
AROMATICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBON SULFIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COMBUSTION PRODUCTS
DENSITY
ELEMENTS
FLAMES
HYDROCARBONS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCYCLIC AROMATIC HYDROCARBONS
SOOT
SULFIDES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES