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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 18b
SUMMARY:From integrated to hybrid steelmaking - metallurgical challenges and the impact on secondary metallurgy
DESCRIPTION:"The majority of worldwide steel production is still dominated by the integrated route via blast furnace (BF) and basic oxygen furnace (BOF). Due to rising costs for CO2 emissions as well as rising market requirements for green steel, the integrated steel plants are under pressure to reduce CO2 emissions drastically. The fact that the optimization potential for the coke-based blast furnace is limited, alternatives like increased scrap rate in BOF and especially DRI / scrap based electric steelmaking, which have a considerably lower CO2 footprint, are in the focus for green transition of the steel industry. The integration of an EAF into a brownfield plant is already challenging in respect to e.g. layout, logistics, productivity and environmental aspects; however, the fact that there are fundamental changes to the steelmaking and secondary metallurgy processes is often overseen.
In this paper the differences between the two steel production routes via BOF and EAF including corresponding secondary metallurgy are described and compared regarding tramp elements (Cu, Sn etc.) as well as impurities (P, S, N). Limits, challenges and solutions for both routes will be explained for different  charge mixes and final steel grade requirements. Special focus is given to demanding steel grades (IF, Si-grades, ULC automotive exposed) which have been mainly produced by converter steelmaking in the past and an outlook is given how to produce these grades via the EAF route in future. Finally recent references for secondary metallurgy will be presented."

CLASS:PUBLIC
DTSTART:20230614T090000
DTEND:20230614T092000
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