Applications of fractional distillation are as follows:
Used to separate air into its constituents gases such as oxygen, nitrogen, carbon dioxide, argon etc.
Crude oil “petroleum ” can be separated into various petroleum products like kerosene, petrol, diesel etc. by this method
Fractional distillation is used for the purification of water as well as for separating ethanol and water.
Fractional distillation is used in several industries like oil refineries and chemical plants mainly for purification and separation of many organic compounds.