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Slide 1

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Catalytic Cracking
Large hydrocarbons are broken into smaller molecules
using heat and a catalyst.
This process is known as catalytic cracking.
The small molecules produced are then separated by
distillation.
Distillation
tower
pressure
Smaller molecules
Catalyti
c
Big Heat to cracker
Molecules vaporise
Molecules
break up…read more

Slide 2

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Catalytic Cracking
In the catalytic cracker long chain molecules are split
apart or `cracked'. An example of such a reaction is:
Octane
Heat
hexane catalyst
pressure
ethene
+
Ethene
Used as is used
a fuel to make
C8H18 C6H14 + C2H4 plastics…read more

Slide 3

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Isomerism
Alkanes of the same formula can have different
arrangements of atoms. Compounds with the same
molecular formula but different structural formula
are known as isomers.
Two isomers of C4H10 are shown
Isomers of butane…read more

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