how is refining of petroleum carried out ? name the important products obtained?

Refining of petroleum is carried out by fractional distillation of crude oil. Petroleum or crude oil is obtained as complex mixture chiefly of aliphatic hydrocarbon with lesser amounts of aromatic hydrocarbons along with small amount of organic compounds of sulfur and nitrogen. Here is the diagram for fractional distillation of petroleum

As the boiling points of different components are different, hence they are distilled at different temperatures. The separated components are then further purified.

products

oil

gas

kerosine

petrol

diesel

 

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