EEC 2026 - 14th European Electric Steelmaking Conference & EMECR 2026 - 5th International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry

Session

Recycling, circular economy and reduction of environmental impact in steelmaking II

13 May 2026, 11:00

Washington room (ground floor)

Conveners

Recycling, circular economy and reduction of environmental impact in steelmaking II

• Carlo Mapelli (Politecnico di Milano)

43. Biochar as a substitute for fossil-based injection coals in EAF operation – definition of criteria for material suitability based on lab tests, particle conversion modelling and industrial injection trials

Thomas Griessacher (Stahl- und Walzwerk Marienhütte GmbH)

13/05/2026, 11:00

EEC 4.A Carbon footprint reduction strategies.

Oral Presentation

In electric arc furnaces typically fossil coal in form of petrol coke or similar is used to create slag foaming in the refining phase. This is responsible for roughly 5-10 % of total CO2-emissions in electric steel production, which means potential savings of 30–60 kg CO2/t steel if carbon neutral sources are applied.
Therefore, a fundamental investigation of the reaction behaviour of...

112. From Fossil Dependence to Energy Resilience: Biosyngas for Low-Carbon Steelmaking

Kristoffer Lorentsson (Meva Energy)

13/05/2026, 11:20

EEC 4.A Carbon footprint reduction strategies.

Oral Presentation

The steel industry faces increasing pressure to decarbonize while maintaining reliability, cost competitiveness, and product quality. While electrification and hydrogen play important long-term roles, many steel plants still depend on high-temperature thermal processes where fossil natural gas remains dominant. This creates an urgent need for scalable, renewable alternatives that can be...

163. Assessment of the natural absorption of CO2 performed by electric steelmaking slag

Carlo Mapelli (Politecnico di Milano)

13/05/2026, 11:40

EEC 4.A Carbon footprint reduction strategies.

Oral Presentation

This study aims to evaluate the natural CO2 absorption potential of steelmaking slag, focusing on both black (EAF) and white (LF) slag generated during steel production. Such slags contain significant amounts of calcium and magnesium compounds capable of reacting with atmospheric CO2 through carbonation, forming stable carbonates and thereby enabling permanent carbon sequestration....

146. Biochar utilization in DRI-based EAF steelmaking

Gangadharan Seenivasan (Luleå University of Technology)

13/05/2026, 12:00

EEC 4.B Integration of renewable energy sources in electric steelmaking

Oral presentation (paper for Ironmaking & Steelmaking special issue)

Utilizing biochar in electric arc furnace (EAF) steelmaking has become a crucial step towards reducing fossil CO2 emissions. The present research examines the interaction between V2O5 and TiO2-containing EAF slag and pinebark-derived biochars, which were pyrolyzed at two different temperatures (600 °C and 800 °C). Optical dilatometry (OD) and thermogravimetry (TG) studies, supported by X-ray...