AIR REQUIREMENT FOR COAL BURNING

Carbon burning  

Carbon reacts with oxygen to form carbon dioxide.

1 kg Carbon +2.67 kg oxygen = 3.67 kg Carbon dioxide

Hydrogen burning

Hydrogen combines with oxygen to form water and heat

1 kg Hydrogen + 8 kg oxygen = 9 kg Water

Sulphur burning

Sulphur combines with oxygen to form Sulphur dioxide

1 kg Sulphur +1 kg Oxygen = 2 kg Sulphur Dioxide.

Example:

We are considering a coal sample having a composition of

The theoretical oxygen required to burn this coal is then

Percentage of Oxygen in air = 23.2% by weight of oxygen.

The theoretical air required to burn the coal is