314712
Description
Mind Map by Harry Knapaman, updated more than 1 year ago
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Created by Harry Knapaman
about 11 years ago
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Fractional
distillation of
crude oil
- Crude oil is a
mixture of lots of
different
hydrocarbons
- The substances in crude oil can be
separated by the process called
FRANCTIONAL DISTILLATION
- Coal, crude oil and gas are all fossil fuels
- fossil fuels are
made from dead
plants and animals
that are buried for
millions of years
- This is what happens during
fractional distillation
- The oil is heated until most
of its has turned into gas
- The gasses enter a tall tower
called fractionating column
- In the column its hot at the bottom
and gets hotter as you go up the
column.
- Hydrocarbons with high boiling
points leave the column near the
bottom
- The oil is heated until most
of its has turned into gas
- You end up with the
crude oil mixture
separated out into
groups of hydrocarbons
- These
groups are
called
fractions
- Each fractions
contains a mixture
of hydrocarbons
with smaller
boiling points
- The separated fractions are
much more useful than crude
oil.
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