Towards decarbonisation in steelmaking: Modelling and optimisation of green and sustainable metallurgical coke production from biomass

The Challenge

​​Decarbonisation of hard-to-abate steel sector is essential to reach net zero by 2050. One promising way is to substitute fossil-based coke with green and sustainable biocoke produced from biomass [1]. However, experimentally optimising biocoke production parameters is time-consuming and resource-intensive, hindering the development of this promising decarbonisation solution [2-3]. A potential solution lies in computational modelling, which could efficiently design and optimise biocoke production processes [4-7]. Despite this potential, the lack of a such modelling frameworks and decision-making tools has hindered progress in this area. This inefficiency hampers biocoke industry’s growth, increases abatement costs for steelmakers, wastes valuable agricultural biomass, causes farmer economic losses, and limits job creation and sustainable development in regional Australia. This research addresses these challenges by providing a comprehensive modelling solution that accelerates the development of biocoke and facilitates steel industry’s transition towards emissions reduction and sustainable practices, thereby mitigating economic, environmental, and social impacts.​

Proposed Solution

​​This project endeavours to develop a comprehensive grey-box modelling framework for enhancing green metallurgical coke production from biomass. Our approach enhances decision-making and optimises steel production by integrating machine learning and mechanistic modelling. Substituting fossil coke with biocoke reduces carbon emissions, strengthening sustainability in Western Australian iron and steel sector.​

Proposed Benefits to WA

​​The proposed research has the potential to deliver substantial economic, environmental, and social benefits to Western Australia (WA). As world’s leading iron ore producer, Australia plays a pivotal role in transitioning steelmaking industry toward net-zero emissions. In line with WA State Government’s goal to achieve carbon neutrality by 2050, this research focuses on reducing GHG emissions in steel sector [8]. Specifically, the study explores the use of biochar (a charcoal-like substance derived from biomass pyrolysis) as an eco-friendly feedstock for producing metallurgical biocoke. Incorporating biocoke into steel manufacturing can significantly decrease carbon emissions, contributing to the State’s GHG reduction targets. This transition not only enhances energy security but also aligns with global climate change mitigation efforts. Economically, it fosters growth in local bioenergy sector. In essence, this research offers comprehensive solution that positions WA as leader in sustainable steel production, bringing prosperity, environmental stewardship, and global recognition to the region.​