Sökning: "Iron Ore Pellets"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden Iron Ore Pellets.

  1. 1. Biobased iron pellet production : Assessment of the availability and sustainability of biomass as fuel for iron ore pellet production in LKAB

    Master-uppsats, Mittuniversitetet/Institutionen för naturvetenskap, design och hållbar utveckling (2023-)

    Författare :Magnus Kemi; [2023]
    Nyckelord :bio-energy; biomass; coal; greenhouse gas emissions; industrial residues; LCA; LKAB; logging residues; iron ore; pellets; sinters; willow; sustainability;

    Sammanfattning : Iron production accounts for substantial shares of global coal use and GHG emissions. LKAB is Europe’s largest iron company and Sweden’s fourth-largest emitter of GHGs. To reduce its emissions, LKAB might implement biomass in iron ore pelletisation. LÄS MER

  3. 2. Optimal process design with simulation-based optimization

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Giulia Grasso; [2023]
    Nyckelord :Optimization; Multi-Objective; Simulation-based; Optimering; flermålsoptimering; simuleringsbaserad;

    Sammanfattning : Nowadays, it has become crucial to transform company production processes in order to reduce carbon emissions. Therefore, the company LKAB is working to make the production process of iron ore pellets fossil-free. In particular, this thesis project focuses on the pellet induration stage and addresses the mathematical optimization of the process. LÄS MER

  4. 3. The Kinetics of Water Removal From an Iron Ore Pellet Prior to Hydrogen Reduction

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Maja Andersson; Jonathan Garte; Johan Karlsson; [2023]
    Nyckelord :;

    Sammanfattning : Humanity is facing one of the biggest challenges ever presented in fighting climate change. To counter global warming, industries and scientists across the world are shifting manufacturing towards fossil independence in order to decrease emissions. LÄS MER

  5. 4. Tillämpning av Partial Least Squares för analys och processövervakning av Hybrits reduktionsprocess

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Författare :Mohammed Al Zagnonn; [2023]
    Nyckelord :Partial Least Squares; Multivariate Process Monitoring; Quality Prediction;

    Sammanfattning : Hybrit development AB är ett bolag som strävar mot att kunna producera fossilfritt stål genom att reducera järnmalmspellets med hjälp av vätgas. Därför har Hybrit utfört experimentella kampanjer där genomförbarheten av att reducera järnmalmspellets med hjälp av vätgas undersökts och studerats. LÄS MER

  7. 5. Theoretical Considerations and Experimental Observations on Heat Transfer in Hydrogen Direct Reduced Iron

    Master-uppsats, KTH/Materialvetenskap

    Författare :Felix Göttfert; [2023]
    Nyckelord :Hydrogen Direct Reduced Iron H-DRI ; Hydrogen Hot Briquetted Iron H-HBI ; Heat Transfer; Thermal Conductivity; Thermophysical Properties; Hydrogen Direct Reduced Iron H-DRI ; Hydrogen Hot Briquetted Iron H-HBI ; Värmeöverföring; Termisk konduktivitet; Termofysiska egenskaper;

    Sammanfattning : Steel has played an indispensable role in shaping our contemporary world  and will persist to play that role for the foreseeable future. However, the steel industry currently is responsible for 7% of the global CO2-emissions, primarily due to the conventional carbon-based reduction process of iron ore. LÄS MER