Module 4: Unit processes 2
  Lecture 31: Blast furnace stoichiometry –I
 


llustration of the above concepts

Calculate top gas composition for an ideal gas blast furnace operating with a mixture of  and coke. Coke is 90%C and is consumed at the rate  of iron.Oxygen is introduced at the rate of   iron. Hot metal has

Blast in traduces oxygen at  iron. Hot metal has

Basis of calculation moles.

In

Note that hot metal has

In hot metal

In Coke: carbon

Active carbon

Oxygen from blast

By using equation 9 we get







and are mole fraction of  and .