One way in which distillation is used in to separate ethanol from water in many alcoholic beverages. Secondly, fuel companies use distillation is also to remove hydrocarbons from petroleum.
Distillation is a process that is used to separate a mixture into its components on the basis of the differences in the components' boiling points.
During distillation, a mixture is heated in a flask. The component of the mixture that has a lower boiling point will begin to boil and evaporate first. This evaporated component is cooled and condenses inside a condenser. In this way, the evaporated component is liquefied inside the condenser. The other component of the mixture that has a higher boiling point is left behind in the flask. Hence, the two components of the mixture are separated.