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You use fractional distillation. This involves a fractionating tower in which vaporised crude oil is fed into. It relies on the substances in crude oil having differnet boiling points. The temperature decreases further up the column, so shorter chain molecules condense near the top, while longer chain molecules - like bitumen - condense lower down - near 350 degrees. This refines crude oil easily.

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12y ago
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12y ago

As crude oil it is almost completely useless, so it has to be split up into its different components (alkanes)

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10y ago

They use a type of distillation called "cracking" the crude oil They use pressure and density differneces to split the heavier portions of oil and the purer fractions

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7y ago

By separation hundreds of useful components are obtained from crude oil.

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13y ago

Crude IS oil.

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Q: Why does crude oil need to be separated?
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Related questions

What is the factory where crude oil is separated?

Crude oil is separated in an oil refinery which makes a bunch of different byproducts such as airplane gas, kerosene, and alot more. -cooleye101


Where is crude separated by heating?

An oil refinery


How crude oil separated?

fractional distillation.


How is crude oil separated?

fractional distillation.


How can crude oil be separated into its components?

It is separated by fractional distillation into the different components.


How crude oil is separated into useful fraction?

Crude oil is separated into different substances with similar boiling points. The substances in crude oil can be separated using fractional distillation. The crude oil is evaporated and its vapours are allowed to condense at different temperatures in the fractionating column. Each fraction contains hydrocarbon molecules with a similar number of carbon atoms


Why can crude oil be separated using fractional distillation?

The chemical constituents of crude oil all have different boiling points, which allows them to be separated by means of fractional distillation.


Is crude oil a mixture?

It is a mixture of hydrocarbons, which can be separated by fractional distillation. Oil is NOT an element.


What is a process in which crude oil can be separated?

Ditillation at different temperatures


Where is crude oil separated into fuel and other products?

At refineries.


Why the mixture that is crude oil can be separated out?

lol hahahahaha\hahaha


Explain how the different chemical compounds in crude oil are separated?

Crude oil is distilled, producing different fractions at different temperatures.