How crude oil is separated into fractions by fractional distillation?

Answer 1

Crude oil needs to be separate because as its crude oil at different boiling points burns and so it creates different types of elements, like for example gasoline at 600 degrees celsius

Answer 2

"Fractional" distillation simply means that you are using some condensing medium (i.e. steel wool) inside the distillation column. In either case, alkanes are a good compound because they are highly volatile (and good for combustion. Hence the reason they are used for fuels). Their volatility causes them to evaporate easily and at different boiling points. As the temperature of the mixed compounds increase, the more volatile substance will travel up the distillation column (ideally) leaving the other compounds behind. The greater the difference in the boiling points of each individual compound (or alkane), the greater the separation will be.

Answer 3

Air is mixture of different gasses (80% Nitrogen, 20% Oxygen and some CO2) each Component gas in air has different boiling point (eg Oxygen boils at 90.19 K and Nitrogen boils at 77.355 K)

Thus when air is condensed into liquid and then heated, at 77.355 K the Nitrogen will boil off, leaving the Oxygen.

Answer 4

Most often by distillation, usually multiple stage distillation in a fractionating column in a refinery.

Answer 5

Fractional distillation is possible because each substance has a specific boiling point. Separation is applied to obtain many useful components from petroleum.

Answer 6

by fractional distillation