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VERSION:2.0
METHOD:PUBLISH
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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 14b
SUMMARY:Biocarbon application during melting of H2-reduced DRI in a pilot electric arc furnace 
DESCRIPTION:The global climate crisis demands that CO2 emissions are reduced. This is especially the case for the steel industry, which contributes to 7% of annual CO2 emissions. Steelmaking using an Electric arc furnace (EAF) and hydrogen reduced Direct Reduced Iron (DRI) as iron input is a possible replacement for the blast furnace steelmaking route. All research work has been conducted within the Hybrit development project, a joint venture between SSAB, LKAB and Vattenfall.  

For steel production in the EAF, carbon-sourcing materials (typically anthracite and carbon in the steel scrap) play an important role as an alloying agent, a slag foaming agent, and a reducing agent. Biocarbon is investigated as a possible replacement for anthracite in order to eliminate fossil CO2 emissions during the melting of H-DRI in the EAF. This paper highlights development results from the Hybrit development program with focus on the application of biocarbon during the melting of H-DRI in a pilot scale EAF. The performance of several different biocarbon materials was evaluated in terms of carbon yield in the steel, slag foaming behavior, off-gas and dust compositions. Fixed carbon content, ash, and volatiles have varied between the tested biocarbon materials. Size and form have varied as well.  

The results show that biocarbon is a feasible replacement for anthracite. However, properties of the biocarbon have a significant impact on its performance during EAF steelmaking. This is an important aspect for the continuing development of a fossil-free steelmaking value chain.  
CLASS:PUBLIC
DTSTART:20230615T115000
DTEND:20230615T121000
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