Challenges During Secondary Metallurgy in the Transformation From Converter to Electric Steelmaking

The path for reducing steel's CO2 impact is defined. The production of steel using EAFs is increasing with scrap and substituting virgin materials like DRI/HBI. The change of input material quality poses new challenges for steel refining at secondary metallurgy stations like ladle refining furnace, vacuum tank degasser and RH recirculation degasser. Sulfur, nitrogen and tramp elements reduction and control is becoming more difficult considering the low availability of pure materials and scrap quality is also not able to match the requirements. Revised processing routes, additional equipment installation and meltshop layout redefinition are discussed in this paper.

Authors:

Matt Powell | Badische Stahl-Engineering GmbH
 

Andrea Pezza | Badische Stahl-Engineering GmbH
 

Dr. Helmut Lachmund | Badische Stahl-Engineering GmbH
 

Felix Firsbach | Badische Stahl-Engineering
 

Session Chairs:

Sara Hornby | Global Strategic Solutions, Inc. (GS2i)
 

Mike Grant | Air Liquide Global Management Services GmbH