Overview of the BioIron Process
Metso has won a design and engineering contract from Rio Tinto for its continuous pilot plant (CPP) for the BioIron process. This cutting-edge method for producing iron with a low carbon footprint involves utilizing ore extracted from mines in Pilbara, Australia. The process integrates raw biomass, an eco-friendly substitute for traditional metallurgical coal, as a reductant alongside microwave energy.
This effort aims to transform iron ore into metallic iron within the steelmaking framework. Rio Tinto intends a comprehensive of the BioIron process on a larger scale. A bespoke CPP has been conceptualized to facilitate this, boasting a remarkable capacity of one tonne per hour. This initiative aims to reduce the carbon emissions associated with the steel value chain.
Focus on Reduction Furnace Design
Under the contract, Metso will spearhead the design for the reduction furnace of the CPP and oversee the development of select ancillary equipment aligned with the BioIron process.
The partnership between the two entities builds upon their collaborative efforts in advancing the BioIron process. The efficacy of this innovative approach was successfully validated through small-scale pilot tests conducted at Metso’s Research Centre located in Frankfurt, Germany.
Commenting on this development, David Leigh, General Manager, Rio Tinto steel decarbonization, said, “This work is the key next step in the development of the BioIron technology and builds on the success of the research and development team.”
Matthias Gabriel, Director, Ferrous at Metso, said, “We are very excited to continue the close working relationship with Rio Tinto and to provide engineering and design support as we move to the next phase of development of the BioIron technology.”