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Petroluem does not consist of a single substance but is a mixture of many substances - mostly several different hydrocarbons. These are separated by a process called fractional distillation. These different components are called fractions.

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Q: What do you mean by a fraction of petroleum?
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Did crude oil means petroleum?

Petroleum is refined from crude oil and is but one fraction only


What is the first fraction to sepatate out of petroleium?

It depends on the petroleum. Petroleum is a mixture that varies from one area to another.


What do you mean by petroleum refining?

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The petroleum fraction that has the lowest boiling point is natural gas, which consists mainly of methane with other hydrocarbons. It boils at temperatures below -162 degrees Celsius.


What is the first fraction to separate out of petroleum?

The first fraction to separate out of petroleum during fractional distillation is usually the lightest fraction, which includes gases like methane, ethane, and propane. These fractions have lower boiling points and are typically collected at the top of the fractionating column.


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What fraction of the petroleum used by the US is imported from other countries?

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What fraction of the petroleum used by the United States is imported from other countrise?

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Is cracking of petroluem fraction a physical or chemical change?

Cracking of petroleum is a chemical process.


What must be added in order for the petroleum to separate into its fraction?

Energy, in the form of heat, must.


Kinds of machinery's on a ship using petroleum?

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Gasoline typically has the lowest boiling point among petroleum products, ranging from approximately 30°C to 200°C.