Title:
Optimization of Biochar Production Process using Design of Experiment for the Utilization in Steelmaking
Author(s):
Putra, R.D., Schedl, A., Mutlu, Ö.
Document(s):
Paper
Poster
Abstract:
Growing demand for decarbonisation in the steel industry has driven interest in using renewable carbon sources to replace fossil-based reductants such as coke. Of the various alternatives, biochar produced from biomass through pyrolysis is particularly a promising option. However, its physicochemical properties depend heavily on the type of feedstock used and the pyrolysis conditions, both of which must be optimised to meet the stringent requirements of steelmaking. This study investigates the production of biochar from waste wood and green cuttings under varying pyrolysis conditions for potential application in steelmaking processes. A design of experiments (DoE) approach was employed to analyse the impact of key process variables, including pyrolysis temperature, heating rate and residence time, on critical biochar properties such as fixed carbon content, ash content and initial oxidation temperature. The results indicate that the type of precursor and pyrolysis temperature are the most significant factors influencing biochar quality. Biochar derived from waste wood demonstrates promising properties, with its high fixed carbon content and low ash content. However, the higher oxidation reactivity of biochar, which is attributed to the catalytic influence of mineral-rich ash components, remains a challenge compared to conventional coke. Further research will focus on the validation of the optimisation model and further characterisation of the biochar.
Keywords:
biomass, biochar, optimization, steelmaking, design of experiment
Topic:
Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels
Subtopic:
Pyrolysis
Event:
33rd European Biomass Conference and Exhibition
Session:
5AV.4.8
Pages:
949 - 955
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-5AV.4.8
Price:
FREE
