Question

what is the main purpose of petroleum refining?

Answer 1

the various hydrocarbons present in petroleum have different boiling points,
as the number of carbon atoms in hydrogen increases, it's boiling point also increases. this property is used to separate the different components of petroleum by using fractional distillation. the components with different boiling points are known as fractions, and the process of separating the fractions by fractional distillation is known as refining

Answer 2

The main purpose of petroleum refining is to extract these substances from it in pure form. Ex. are petrol, Diesel, asphalt, petroleum jelly etc