The longest hydrocarbons have very high boiling points. They leave the column as a hot liquid called bitumen. Shorter hydrocarbon molecules have weaker intermolecular forces and lower boiling ...

In this video, Fran Scott explains fractional distillation - the separation of crude oil into fractions. Crude oil is a finite resource; petrol and other fuels are produced from it using ...

In order for crude oil to be useful, it has to be refined. The main step in refining crude oil is fractional distillation. In this process, the raw petroleum is heated in a boiler with high-pressure ...