2. Some fractions not needed as much as other
fractions (Need lots of octane-gasoline)
Can alter fractions to meet demands for
fractions used more often.
3. Break larger hydrocarbons into 2 smaller
hydrocarbons.
16 carbon molecule broken into two 8 carbon
molecules
C16H34 C8H18 + C8H16
Always make an alkane + whatever is left
over.
6. At the gas pump the number for each grade
of gasoline. (87, 89, 92)
The higher the number the higher the octane
rating and the better it burns in your car.
Straight chain octane has a lower octane
rating. Branched octane burns more
efficiently.
7. Additives added to fuels to increase the
octane rating.
Gasohol: 10% ethanol and 90 % gasoline
works in most engines.
More complete combustion or lower the
amount of air pollutants.
8. 1) Add more branched chain octane.
2) Add MTHF which can be made from
renewable resources.
