Question

which gas is called as Vitiated gas?

Answer 1

Air that has been rendered impure by the breath of workers and horses, or by being mixed with the various gases given off in mines. It is frequently called return air.

OR

Air in which the oxygen content has been reduced.

OR

 Air that is not fresh. ...

Answer 2

The gas which contains a lower concentration of oxygen is called vitiated gas.

Explanation:

• Vitiated gas is mixed with various gases from mines and breathe out from workers and horses.

• It is not fresh air. It is also called as return gas. It is used in the low emission combustion technologies.

• Vitiated gas is obtained by recirculating exhaust gases into the fresh air stream.

• Dilution gases such as water, carbon dioxide, CO and unburned hydrocarbons are used.

• Vitiated gas is used in many combustion systems to reduce pollutant emission.

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