Question

13.) how refining of petroleum is done ? class-8. 3maks​

Answer 1

Answer:

see

Explanation:

The first part of refining crude oil is to heat it until it boils. The boiling liquid is separated into different liquids and gases in a distillation column. These liquids are used to make petrol, paraffin, diesel fuel etc. ... The boiling oil turns into a mixture of gases in the column.

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Answer 2

Answer:

REFINING OF PETROLEUM:

The crude petroleum is transported to oilrefineries by a network of pipelines where it is refined. The process of separation of the various constituents of crude petroleum is calledd refining of petroleum The process involved during the refining of petroleum is fractional distillation.

FRACTIONAL DISTILLATION:

Fractional distillation is the process of two or more miscible liquids by distillation, the distilled being collected in fraction boiling at different temperatures. The separating of two liquids by fractional distillation depends on the difference in their boiling points. The Fractional Distillation is carried out by using fractionatingcolumn.

after drawing diagram here write these steps:

PROCESS OF FRACTIONAL DISTILLATION:

*Crude petroleum is introduced into a furnace and heated to 400°C

*The vapours formed as a result are then passed on to a fractionating tower. *The components or fraction that have the highest boiling points condense first near the base of the fractionating tower and come.

*The vapours of the remaining fractions rise upwards in the tower and condense at different heights depending on their boiling points.

PRODUCTS OBTAINED FROM REFINING OF PETROLEUM:

☆ Petrol

☆ Diesel

☆ Kerosene

☆ Bitumen

☆ LPG

☆ Paraffin wax

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