More than 80 percent of greenhouse gas emissions are caused in the primary stage during hot metal production. Due to the long investment cycles for metallurgical plants, a large part of the required CO2 savings must come from the ongoing operation of existing blast furnaces.
Therefore, it is encouraging to know that there is also considerable optimization potential for the classic blast furnace route. By retrofitting innovative, resource-saving solutions onto the existing installed equipment substantial reductions in the CO2 footprint can be reached in the short and mid-term, thereby creating a sensible balance between ambitious environmental targets and economic constraints. Our ‘blue’ blast furnace is capable of substantially reducing the carbon footprint of this established and proven technology.
One example is the injection of hydrogen or hot synthesis gases into the blast furnace. With this measure, the CO2 footprint in pig iron production can be reduced by a considerable 30 percent.
When revamping existing integrated metallurgical plants, it is necessary to carefully reassess the entire infrastructure as well as the energy balances and flows. This process is hardly possible without the expertise of a large-scale plant engineering company. As a holistic solution provider, SMS group offers a variety of ways to cost-effectively improve the CO2 balance of blast furnaces.