Correlation of the ozone formation rates with hydroxyl radical concentrations in the propylene-nitrogen oxide-dry air system: effective ozone formation rate constant

Journal Article · Tue Feb 01 00:00:00 EST 1983 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00108a006· OSTI ID:6343982

Akimoto, H; Sakamaki, F

Ozone formation rates obtained in smog chamber experiments for the C/sub 3/H/sub 6/-NO/sub x/-dry air system were analyzed with the aid of computer simulation using a detailed reaction model. In the region of (C/sub 3/H/sub 6/)/sub 0//(NO/sub x/)/sub 0/ greater than or equal to 5, the ozone formation rate was found to be approximately proportional to the product of the OH-radical concentration and the initial concentration of C/sub 3/H/sub 6/ in the earlier stage of photooxidation until d(O/sub 3/)/dt reaches a maximum. The proportionality constant was defined as an effective ozone formation rate constant and is proposed to be a useful parameter to represent photochemical reactivity of hydrocarbon mixtures on the basis of ozone formation rate. The effective ozone formation rate constant for C/sub 3/H/sub 6/ in the dry air-NO/sub x/ mixture was determined to be (6.2 +/- 1.1) x 10/sup 4/ ppm/sup -1/ min/sup -1/.

• Research Organization: National Inst. for Environmental Studies, Ibaraki, Japan
• OSTI ID: 6343982
• Journal Information: Environ. Sci. Technol.; (United States), Vol. 17:2
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
OZONE
SYNTHESIS
AIR
CHEMICAL REACTION KINETICS
COMPUTERIZED SIMULATION
CONCENTRATION RATIO
EXPOSURE CHAMBERS
HYDROXYL RADICALS
MATHEMATICAL MODELS
NITROGEN OXIDES
PROPYLENE
SMOG
ALKENES
CHALCOGENIDES
FLUIDS
GASES
HYDROCARBONS
KINETICS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADICALS
REACTION KINETICS
SIMULATION
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)