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Use of biomass in steelmaking and its effects for forest industries
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0001-5496-5535
Swerim AB, Luleå, Sweden.ORCID iD: 0000-0001-6311-1822
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-4532-4530
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-4597-4082
2020 (English)In: 33rd Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2020): Proceedings of a meeting held 29 June - 3 July 2020, Osaka, Japan / [ed] Yokoyama, R, Amano, Y., ECOS 2020 Organizing Committee , 2020, p. 1883-1894Conference paper, Published paper (Refereed)
Abstract [en]

Use of forest biomass as an alternative to fossil fuels and reductants in the different process stages of steelmaking is viewed as a short to medium term solution in tackling CO2 emissions from the steel sector. Judging by the energy intensity of producing steel, the requirement for biomass utilisation is expectedly large. In any case, switching to biomass is met with technical restrictions regarding substitution potentials and feasibility limits. With biomass being a limited and spatially variable resource, the options for localising biomass conversion technologies as well as supplying both the raw material and final product become more complex.In this study, a spatially explicit techno-economic approach is employed to optimize the value chains of certain upgraded biomass products, achieving a least-cost strategy in order to facilitate the adoption of biomass in the steel industry. The impact of localising the production technologies at specific sites is assessed. The scope of the work is limited to the iron and steel sector in Sweden, where ambitious national climate goals for net-zero greenhouse gas emissions are targeted by the year 2045. Results from the optimization model show the plant localisations for biomass conversion, and demonstrate the relationship between plant locations and biomass supply points. The impact of biomass supply for metallurgical purposes is discussed against the backdrop of the existing forest industries.

Place, publisher, year, edition, pages
ECOS 2020 Organizing Committee , 2020. p. 1883-1894
Keywords [en]
Biomass supply, Forest biomass, Iron and steel, Spatial modelling, Techno-economic optimization
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-80184Scopus ID: 2-s2.0-85095772173OAI: oai:DiVA.org:ltu-80184DiVA, id: diva2:1452677
Conference
33rd Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2020), 29 June-3 July, 2020, Osaka, Japan
Funder
Swedish Energy Agency, 42194-1
Note

ISBN för värdpublikation: 978-1-7138-1406-1

Available from: 2020-07-07 Created: 2020-07-07 Last updated: 2023-09-04Bibliographically approved

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Nwachukwu, ChineduToffolo, AndreaWetterlund, Elisabeth

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