Essays about: "iron ore reduction"

Showing result 1 - 5 of 19 essays containing the words iron ore reduction.

  1. 1. A Geophysical Survey of Northern Utö

    University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

    Author : Nicole Flanders; [2023]
    Keywords : ;

    Abstract : A geophysical investigation on the northern part of Utö was carried out between 2020 and 2021 to asses the extent of the iron ore (BIFs) and the iron bearing sulfides that have been surveyed and mined in the past. The survey using analog field equipment combined magnetometry, gravimetry, susceptibility, leveling, density, and thin-section microscopy. READ MORE

  3. 2. Electrolytic Reduction of Iron Oxides in Molten Salt with a Mineralogical Investigation of Magnetite Ore of Tapuli

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Elina Fernö; [2023]
    Keywords : Iron reduction; trace element analysis on magnetite ore; molten salt electrolysis; sodium hydroxide electrolyte; NaOH; greenhouse gas; carbon dioxide; CO2; green ironmaking; Järnreduktion; spårelementanalys på magnetitmalm; smältelektrolys; elektrolys i natriumhydroxid; NaOH; elektrolyt; växthusgas; koldioxid; CO2; grön järnframställning;

    Abstract : This master's thesis covers an investigation of the reduction behavior of different iron oxides when electrolytically reduced with molten salt electrolysis (MSE). The tested iron oxides were wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4) and magnetite ore concentrate from the Tapuli deposit in Pajala, Norrbotten, Sweden. READ MORE

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

    University essay from KTH/Materialvetenskap

    Author : Maja Andersson; Jonathan Garte; Johan Karlsson; [2023]
    Keywords : ;

    Abstract : 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. READ MORE

  5. 4. Hydrogen-induced Fluidized Bed Reduction : Evaluation of the Effect of Pressure, Particle Size, Gas Mixture and Temperature on the Minimum Fluidization Velocity of Iron Ore Fines

    University essay from KTH/Materialvetenskap

    Author : Joakim Käck; Sebastian Uhlin; [2023]
    Keywords : ;

    Abstract : Steel is used worldwide and there are demands for an increase in current production. The problem emerges because steel and iron-making industries release vast amounts of CO2 and need to be more environmentally sustainable. READ MORE

  6. 5. Heat recovery from low emission steel production through electrolysis and hydrogen reduction

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Sofia Kongshöj; [2023]
    Keywords : Electrolysis; H2 Green Steel H2GS ; waste heat recovery; district heating.; Earth and Environmental Sciences;

    Abstract : The steel industry is a large emitter of carbon dioxide and uses a lot of energy. Because of an increased awareness of the detrimental effects of climate change, research in alternative ways to operate steel plants have been made. It is now possible to build plants with far less emissions by using electrolysis and hydrogen reduction. READ MORE