It is defined as the separation of different fractions (compounds) of petroleum from one another by Fractional distillation.
In petroleum, there are two types of hydrocarbons.
(i) Paraffin’s (ii) Cyclo paraffin’s
Two important Fractions of petroleum are:
(i) Gasoline or petrol 40°0 —- 200°C
(ii) Kerosene oil 175°C —– 325°C
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