In the past, the gases from the steelmaking process were only used to generate electricity and heat for the manufacturing process. Steel mill gases contain hydrogen, nitrogen, and carbon, among other substances – these can be used to produce numerous chemical products, thanks to Carbon2Chem®.
thyssenkrupp launched the Carbon2Chem® project to research ways to economically utilize CO2 and contribute to climate protection and the energy transition.
The concept of the integrated steel mill means using one part of the steel mill gases for generating electricity and heat for the manufacturing process. The remainder will soon be diverted to the chemical production process.
The chemical production process is provided with an uninterrupted supply of power using a load-balancing module, with priority given to renewable energy sources. If none are available, electricity is supplied by a power plant.
Hydrogen is required in order to utilize CO2 as a raw material. This hydrogen can be produced using renewable energy.
The gases from the steelmaking process can be converted into methanol (for fuel production) and ammonia (for the production of synthetic fertilizer). The CO2 is nearly fully recycled.