Essays about: "järnsvamp"

Found 5 essays containing the word järnsvamp.

1. 1. Usage of Natural Gas in Modern Steel-making : A Financial and Environmental Evaluation of Available Steel-making Technology in Sweden

   University essay from KTH/Materialvetenskap

   Author : William Wadbrant; [2020]
   Keywords : Direct Reduction; Iron sponge; Natural gas; LNG; DRI; Midrex; HYL; Electrical Arc Furnace; Blast furnace; Oxygen Converter; Capital expenditure; Modern Steelmaking; HYBRIT; Direkt reduktion; Järnsvamp; Naturgas; LNG; Hållbarhet; Koldioxidutsläpp; Växthusgaser; Midrex; HYL; Ljusbågsugn; Masugn; LD-Konverter; Kapital investering; Modern Ståltillverkning; HYBRIT;

   Abstract : A method of producing steel that is not used in Sweden today is direct reduction using natural gas, a method which could has enormous potential in the future of steelmaking. Historically, steelmaking prioritized productivity and profitability. READ MORE

3. 2. Experimental study of the temperature profile in an iron ore pellet during reduction using hydrogen gas

   University essay from KTH/Materialvetenskap

   Author : Julia Brännberg Fogelström; [2020]
   Keywords : Iron ore; Iron oxide; Hematite pellet; Hydrogen reduction; Reduction; Intraparticle temperature; Temperature effect; Temperature profile; Järnmalm; Järnoxid; Hematitpellet; Vätgasreduktion; Reduktion; Invändig temperatur; Temperatureffekt; Temperaturprofil;

   Abstract : We are facing an important challenge, to reduce the greenhouse gas emissions to make sure that we limit global warming to 2 °C, preferably 1.5 °C. Drastic changes and developing new methods may be our only chance to keep global warming under 1.5 °C. READ MORE

4. 3. Life cycle assessment of coal based direct-reduced iron production in India

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : SABARISH ELANGO; [2020]
   Keywords : ;

   Abstract : The production of iron through direct reduction (Direct-Reduced Iron; DRI) involves the use of natural gas or coal to reduce iron ore to iron through carbothermic reactions at a temperature below its melting point, negating the need for a blast furnace as otherwise required. In India, around 25% of iron is produced through direct reduction. READ MORE

5. 4. Towards a fossil free steel sector : Conditions for technology transfer of hydrogenbased iron and steel in Europe

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Amanda Öhman; [2019]
   Keywords : hydrogen-based iron and steel; direct reduction; industry decarbonisation; energy transition; Multi-level perspective; technology transfer; vätgasbaserat järn och stål; direktreduktion; fossilutfasning i industrin; energiomställning; multinivåperspektiv; tekniköverföring;

   Abstract : In order to meet the targets of the Paris Agreement, there is a need to significantly reduce emissions from energy-intensive industries, iron and steel included. One promising technology with the potential to reduce the emissions related to iron and steelmaking to basically none is direct reduction with fossil free hydrogen, which requires large amounts of fossil free electricity. READ MORE

6. 5. Carbon mitigation using biomass gasification to displace natural gas, during sponge iron powder production

   University essay from KTH/Materialvetenskap

   Author : Mark Guban; Viktor La Torre Rapp; [2015]
   Keywords : ;

   Abstract : Carbon dioxide is one of the green house gases that cause climate changes. Both the European Union and the Swedish government have the goal to reduce the emission of green house gases. The first aim of this project was to calculate the amount of the total emissions when producing Sponge Iron powder at Höganäs for both upstream and process. READ MORE