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from crude oil. it is refined in many grades
Crude oil is the starting raw material, the thick black fluid the get from oil rigs. This is then distilled, which means that it is heated in a controlled way to separate out all of the constituents. In the distillation tower, the different products come out at different stages. The tar comes out near the bottom, then aviation fuel, then diesel nearer to the top then petrol (or gasoline as some would have it), then the lightest products right at the top of the tower such as propane.
this is not a practical perform answer. if we take a crude oil and saprated it composition till the reaching of composition of petrolium , if we reach the composition of then we can make the petrol by using the crude oil as raw material.

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7y ago

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