The current blast furnaces are efficient and highly optimised and the scope for further lowering the carbon usage (and thus CO2 emissions) in these furnaces is approaching its limits. A possible breakthrough solution is to recycle the remaining CO and H2 in blast furnace top gas back into the...

Modern reheating furnace control systems currently use limited measurements of the furnace temperature coupled with simple empirical mathematical models to predict and following regulate stock temperatures. However existing measurement data capture only a small amount of information about the...

Solutions which enable the extended use of low cost raw materials, but conserve blast furnace operation consistent, will contribute to economical hot metal production. The industrial experience with regard to using nut coke, ferrous fines and injected coals as important low cost raw materials...

Aiming at increased flexibility and use of alternative carbon materials (ACM) and sustainable use of carbon resources by reaching high injection levels of ACM (plastics, dusts, sludge etc.) and at decreasing the demand for coke and coal, physical and chemical characterisation, pre-treatment of...

The Ideogas project started in March 2006 with the aim of simulating and investigating the recycling of decarbonated top gas (DTG) in the shaft of the blast furnace. Unfortunately, the burner technology foreseen to produce reducing a gas simulating DTG from natural gas did not work and had to be...

Within this project a new blast furnace process route able to operate with very low CO2 emissions has been developed. This can be achieved by using oxygen instead of air, facilitating CO2 capture from the top gas and recycling of the reducing gas. Starting from the first concepts, mathematical...