Paper details

Title:

Characterisation of Biochars for Metallurgical Applications and Means of Optimisation

Author(s):

Supancic, K., Antrekowitsch, J., Obernberger, I.

Document(s):

Abstract:

The metallurgical industry is responsible for a considerable share of the world’s CO2 emissions, thus appropriate mitigation strategies are urgently needed to reach global targets for Greenhouse gas (GHG) emission reductions. A significant share of these emissions is related to the use of coke or coal for the reduction and/or carburization of raw materials and for energy generation. The substitution of fossil C-carriers with sustainably produced biochar could be achieved without major adaptations to the processes and without high investment costs, making this option an interesting solution. The purpose of the work was the investigation of biochar properties relevant for the use in metallurgical processes (e.g. C content, ash content, density, reactivity (CRI), specific surface etc.), their comparison with typical fossil C-carriers, requirements of specific metallurgical processes as well as the evaluation of possible means to improve certain biochar properties for these processes. As a result of the presented work, advantages and disadvantages of biochar compared to fossil C carriers, depending on different metallurgical applications, have been defined, which forms the basis for further R&D work on this topic.

Keywords:

biochar, CO₂ reduction, decarbonisation, metallurgical processes, fossil C carriers

Topic:

Biomass Conversion to Bio-based Products and Chemicals

Subtopic:

Processes for bio-based chemicals and materials

Event:

32nd European Biomass Conference and Exhibition

Session:

6BO.8.1

Pages:

796 - 806

ISBN:

978-88-89407-24-0

Paper DOI:

10.5071/32ndEUBCE2024-6BO.8.1

Price:

FREE