Fractional Distillation Of Crude

Oil

In order to separate the different length chains

in the crude mix, it is heated to a very high

temperature. The temperature is set so that

all those fractions with a Carbon chain length

of 20 and below are evaporated from the

crude mix. The temperature cannot be set

higher than this as there is a risk that the

lighter fractions will ignite.

The remaining liquid, which is composed of only

the heavier fractions, passes to a second

location where it is heated to a similar

temperature, but at lower pressure. This has

the effect of making the heavy Hydrocarbon

fractions more likely to evaporate…read more

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