L1 /
6
CH3041
HYDROCARBON
OXIDATION
• The combined NO +
NO2 are referred to as
NOx.. The formation of brown, toxic NO2 is a
characteristic reaction that gives smog its
nice brown colour.
NOx.. The formation of brown, toxic NO2 is a
characteristic reaction that gives smog its
nice brown colour.
• Measurements of NO2 and O3 are used to
monitor air quality.
[O3] higher than 0.15ppm for > 1hr = smog
monitor air quality.
[O3] higher than 0.15ppm for > 1hr = smog
• The VOCs also react with NO and OH. .
CH4 + OH. + 2O2 + 2NO® HCHO + 2NO2 + H2O + OH.
This is a general reaction and more complex
hydrocarbons form complex aldehydes &
derivatives the most notable being PAN.
CH4 + OH. + 2O2 + 2NO® HCHO + 2NO2 + H2O + OH.
This is a general reaction and more complex
hydrocarbons form complex aldehydes &
derivatives the most notable being PAN.
• PAN = peroxyacetylnitrate CH3COO2NO2
