Economic outlook
COREX cast iron production process

Turning to the economic outlook, it should be noted that the COREX process stricto sensu consumes, as we have seen above, large quantities of coal and oxygen, but with good energy efficiency, and that it produces an equally large quantity of an excellent gas, averaging [4]:

• 35 to 45% CO ;

• 32 to 35% CO₂ ;

• 15-20% H₂ ;

• 1-2% CH₄ ;

• 3% other gases, mainly N₂ ;

and 10 to 70 ppm by volume of H₂S.

This gas has a calorific value ranging from 7,000 to 7,500 kJ/Nm³.

The economic prospects of this process will therefore be closely linked to the use of this gas and, consequently, to the various configurations that can be envisaged. Without being able to consider all the possible...