What is cracking and how is it done?
Cracking of CRUDE OIL is the breakdown of long-chain hydrocarbons (produced from fractional distillation) to shorter-chain hydrocarbons, which are more economically useful.
Long chain hydrocarbons are vapourised (turn into gas) and passed over an Aluminium Oxide catalyst at a temperature of 500C.
Products include ethene (for plastics) as well as petrol (for fuel)
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