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 points.

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 ...

SINGAPORE, Jan 8 (Reuters) - China's Sinopec Zhenhai refinery said a fire that broke out on one of its crude distillation units ... slid as the Bank of England cut rates. Retail & Consumercategory ...