Use of Different Lime-Based Products to Promote Agglomeration of Bio-Charcoal for EAF Injection Through Extrusion and Tableting Processes

The electric arc furnace (EAF) is the most common way to produce steel from steel scrap feedstocks and it is intrinsically low-carbon compared with the integrated blast furnace-basic oxygen furnace route. To reach global CO2 emission reduction goals, it will be necessary to substitute fossil charge and injection carbon used in EAF steelmaking with alternative carbon sources such as bio-charcoal. This study focuses on producing a dense bio-charcoal agglomerate, using tableting and vacuum stiff extrusion with different lime-based products, which can be injected into the EAF to promote slag foaming, with limited dispersion to the offgas and with maximum penetration and reaction inside the slag layer.

M.Eng. Joyce Aderhold | Lhoist Group
 

Mark Ford | J.C. Steele & Sons Inc.
 

PhD Hugues Lambert | Lhoist Group
 

Helene Huynh | Lhoist Group
 

Jan Böhringer | HÄNDLE GmbH Maschinen und Anlagenbau
 

Mac Steele | J.C. Steele & Sons Inc.
 

Bill Johnson | Lhoist Group