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Rebecca Pinder Alkanes

Alkanes are saturated hydrocarbons, with no double bonds.

Petroleum is a mixture of hydrocarbons, mainly alkanes

Cracking - The breaking of long-chain alkane molecules (obtained from crude old) into shorter chain
hydrocarbons, some of which are alkenes. This involved the breaking of c-c bonds.

Thermal Cracking

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Rebecca Pinder Alkanes

This can produce a number of pollutants:
CO ­ nonane + oxygen carbon monoxide + water
NO ­ N2 + O2 2NO
NO2 ­ 2NO + O2 2NO2
Unburned hydrocarbons can also beb released

These can be removed using a catalytic converter
2CO +2NO 2CO2 + N2…


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