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

Journal Article · Wed Feb 01 00:00:00 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), Vol. 75:2
• Country of Publication: United States
• Language: English

Related Subjects

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