Fractional distillation of crude oil
Lesson 8 / 10
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I can describe how crude oil can be separated into fractions using fractional distillation, and describe the differences in properties between fractions.
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Crude oil is a non-renewable mixture of different hydrocarbons and impurities.
Crude oil can be separated into groups of hydrocarbon molecules of similar size, called fractions.
Most of the hydrocarbon molecules in crude oil are alkanes.
Smaller hydrocarbon molecules have lower boiling points, are more flammable, and are less viscous.
Fractions of crude oil include petroleum gases, petrol, kerosene, diesel oil, heavy fuel oil, and bitumen.
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