Pathways for Low-Carbon Transition of the Steel Industry-A Swedish Case Study
Artikel i vetenskaplig tidskrift, 2020

The concept of techno-economic pathways is used to investigate the potential implementation of CO(2)abatement measures over time towards zero-emission steelmaking in Sweden. The following mitigation measures are investigated and combined in three pathways: top gas recycling blast furnace (TGRBF); carbon capture and storage (CCS); substitution of pulverized coal injection (PCI) with biomass; hydrogen direct reduction of iron ore (H-DR); and electric arc furnace (EAF), where fossil fuels are replaced with biomass. The results show that CCS in combination with biomass substitution in the blast furnace and a replacement primary steel production plant with EAF with biomass (Pathway 1) yield CO(2)emission reductions of 83% in 2045 compared to CO(2)emissions with current steel process configurations. Electrification of the primary steel production in terms of H-DR/EAF process (Pathway 2), could result in almost fossil-free steel production, and Sweden could achieve a 10% reduction in total CO(2)emissions. Finally, (Pathway 3) we show that increased production of hot briquetted iron pellets (HBI), could lead to decarbonization of the steel industry outside Sweden, assuming that the exported HBI will be converted via EAF and the receiving country has a decarbonized power sector.

iron and steel industry

CO(2)emissions

carbon abatement measures

decarbonization

techno-economic pathways

Författare

Alla Toktarova

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 1

Ida Karlsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 1

Johan Rootzén

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Göteborgs universitet

Lisa Göransson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Mikael Odenberger

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Energies

1996-1073 (ISSN)

Vol. 13 15 3840

Ämneskategorier

Förnyelsebar bioenergi

Bioenergi

Energisystem

DOI

10.3390/en13153840

Mer information

Senast uppdaterat

2020-10-12