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  • 1.
    Nwachukwu, Chinedu M
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Toffolo, Andrea
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Grip, Carl-Erik
    Wang, Chuan
    Swerea MEFOS, Process Integration Department.
    Wetterlund, Elisabeth
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Systems analysis of sawmill by-products gasification towards a bio-based steel production2018In: ECOS 2018: Proceedings of the 31st International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems / [ed] José Carlos Teixeira, Ana Cristina Ferreira, Ângela Silva, Senhorinha Teixeira, Universidade do Minho. Departamento de Engenharia Mecânica Campus Azurém, Guimarães Portugal , 2018Conference paper (Refereed)
  • 2.
    Nwachukwu, Chinedu M
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Toffolo, Andrea
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Wetterlund, Elisabeth
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Biomass-based gas use in Swedish iron and steel industry: Supply chain and process integration considerations2020In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 146, p. 2797-2811Article in journal (Refereed)
    Abstract [en]

    Substitution of fossil gaseous fuels with biomass-based gases is of interest to the iron and steel industry due to its role in the mitigation of anthropogenic CO2emissions. In switching from fossil fuels to biomass-based gases, a systems analysis of the full value chain from biomass supply to the production and supply of final gas products becomes crucial. This study uses process and heat integration methods in combination with a supply chain evaluation to analyse full value chains of biomass-based gases for fossil gas replacement within the iron and steel industry. The study is carried out as a specific case study in order to understand the implications of utilizing bio-syngas/bio-SNG as heating fuels in iron- and steel-making, and to provide insights into the most sensitive parameters involved in fuel switching. The results show a significant cost difference in the fuel production of the two gas products owing to higher capital and biomass use in the bio-SNG value chain option. When tested for sensitivity, biomass price, transportation distance, and capital costs show the most impact on fuel production costs across all options studied. Trade-offs associated with process integration, plant localisation, feedstock availability and supply were found to varying extents.

  • 3.
    Wang, Chaun
    et al.
    Swerea MEFOS.
    Suopajärvi, Hannu
    University of Oulu.
    Ng, Ka Wing
    Natural Resources Canada, CanmetENERGY.
    Chinedu, Nwachukwu
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Elisabeth, Wetterlund
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Research development on utilizing biomass in the blast furnace for CO2 emission reduction: Experiences from Nordic countries and Canada2018Conference paper (Other academic)
  • 4.
    Wang, Chuan
    et al.
    Luleå University of Technology, External. Swera MEFOS.
    Suopajärvi, Hannu
    Luleå University of Technology, External. University of Oulu.
    Ng, Ka Wing
    Luleå University of Technology, External. Natural Reseource Canada, CanmetENERGY.
    Nwachukwu, Chinedu
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    Wetterlund, Elisabeth
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
    RESEARCH DEVELOPMENT ON UTILIZING BIOMASS IN THE BLAST FURNACE FOR CO2 EMISSION REDUCTION: EXPERIENCES FROM NORDIC COUNTRIES AND CANADA2018Conference paper (Other academic)
1 - 4 of 4
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