An Empirical Comparative Study of Renewable Biochar and Fossil Carbon as Carburizer in Steelmaking
Ryan Robinson, Liviu Brabie, Magnus Pettersson, Marko Amovic, Rolf Ljunggren
Abstract
Approximately 60–70% of the direct greenhouse gas emissions in electric arc furnace (EAF) steelmaking originate from the use of fossil carbon charge during melting of steel scrap. Regarding short-term solutions to mitigate the climate impact of steelmaking, there is greater potential to replace fossil carbon charge with renewable carbon in the EAF than in integrated blast furnace steelmaking where mechanical strength requirements on carbon charge are too demanding. Therefore, the present study aims to provide an experimental and practical foundation for using renewable biochar in the EAF as a relatively simple step to decrease the climate impact of steelmaking.
Topics & Concepts
SteelmakingScrapBiocharGreenhouse gasRenewable energyFossil fuelWaste managementCarbon fibersEnvironmental scienceElectric arc furnaceMaterials scienceEngineeringMetallurgyEcologyPyrolysisComposite materialBiologyElectrical engineeringComposite numberIron and Steelmaking ProcessesMetallurgical Processes and ThermodynamicsGraphite, nuclear technology, radiation studies