Computer simulation of the rates and mechanisms of photochemical smog formation
The kinetics and mechanisms of the homogeneous elementary reactions involved in photochemical smog formation were investigated. The rate of reactions in synthetic smog mixture of alkene, alkane, nitric oxide, nitrogen dioxide, carbon monoxide, CH/sub 2/O (formaldehyde), CH/sub 3/CHO (acetaldehyde), methane, and sulfur dioxide exposure to sunlight at z equals 40 deg were simulated by computer calculations. The theoretical effects of initial aldehyde impurity on the ozone and peroxyacetyl nitrate levels reached in these systems require that consideration of the concentrations of aldehyde contaminants be monitored and an account taken of their presence in the further development of control strategy for photochemical oxidant. The theoretical rates and mechanisms of NO/sub 2/ and SO/sub 2/ removal in synthetic smog mixtures are calculated and the nature of the product formed considered. The homogeneous removal paths for both of these gases account for a significant fraction of their rates of removal in real urban atmospheres.
- Research Organization:
- Ohio State Univ., Columbus
- OSTI ID:
- 7291301
- Journal Information:
- Int. J. Chem. Kinet.; (United States), Journal Name: Int. J. Chem. Kinet.; (United States) Vol. 7:Suppl. 1; ISSN IJCKB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400500 -- Photochemistry
500100* -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETALDEHYDE
ALDEHYDES
ALKANES
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMPUTER CALCULATIONS
CRYOGENIC FLUIDS
EARTH ATMOSPHERE
ENVIRONMENTAL TRANSPORT
FLUIDS
FORMALDEHYDE
HYDROCARBONS
KINETICS
MASS TRANSFER
MATHEMATICAL MODELS
METHANE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL OXIDANTS
REACTION KINETICS
REMOVAL
SIMULATION
SMOG
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
URBAN AREAS