Cracking crude oil Flashcards
1
Q
What is cracking?
A
Splitting up long-chain hydrocarbons.
2
Q
Diesel is a long-chain molecules and it makes what three fuels through cracking?
A
Petrol, Paraffin and Ethene (for plastics)
3
Q
What kind of reaction is cracking?
A
A thermal decomposition.
4
Q
Describe the process of cracking.
A
1) The long-chain hydrocarbon is vapourised
2) The vapour is passed over a powered catalyst at a temperature of 400c-700c
3) The long-chain molecules split apart (crack) on the surface of the specks of the catalyst
5
Q
What kind of a catalyst is used in cracking?
A
Aluminium oxide
6
Q
What is vapourisation?
A
When a solid or liquid is turned into a gas.
