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Pyrolysis is the process that helps to convert lower Hydrocarbon from Higher Hydro carbon. The heating of hydrocarbon at high temperature is known as pyrolysis.

Here the Higher Alkene are Transformed into lower by cracking .

For example, Dodecane ( a component of kerosene oil) gives a mixture of heptane and pentane as pyrolysis products, on heating it to a temperature of 973K under the catalytic action of platinum, palladium or nickel.

Alkane Pyrolysis also involves breaking of C-H and C-C and by free radical Mechanism.

Another example of Pyrolysis are :- Alkanes on heating under high temperature or in the presence of a catalyst in absence of air broken down into lower alkanes, alkenes and hydrogen.

Hope this will help.

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