Essays about: "ljusbågsugn"

Showing result 1 - 5 of 8 essays containing the word ljusbågsugn.

1. 1. Integrating biomass gasification with electric arc furnace steel making

   University essay from KTH/Energiprocesser

   Author : Filippa Andersson; [2023]
   Keywords : Electric arc furnace; EAF off-gas; gasification; CCU; process integration; Ljusbågsugn avgasrök; ljusbågsugn; förgasning; kolavskiljning; process integration;

   Abstract : Utsläppen av växthusgaser ökar över hela världen och nya tekniker används för att minska utsläppen. 7% av utsläppen kommer från stålsektorn. 25% av världens stålproduktion görs via återvinningstekniken ljusbågsugn. Genom återvinningsprocessen släpps det ut 500kg CO2 per ton producerat flytande stål. READ MORE

3. 2. Theoretical Considerations and Experimental Observations on Heat Transfer in Hydrogen Direct Reduced Iron

   University essay from KTH/Materialvetenskap

   Author : Felix Göttfert; [2023]
   Keywords : 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;

   Abstract : 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. READ MORE

4. 3. Conditions for Industrial Symbiosis surrounding a hydrogen based steel industry

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

   Author : Erland Nylund; [2023]
   Keywords : Industrial Symbiosis; H-DRI steelmaking; Industrial Symbiosis Networks; Waste management; Supplementary Cementitious Material SCM ; circular economy; Industriell symbios; H-DRI stålproduktion; Industriell Symbios-nätverk; restmaterialhantering; alternativa cementmaterial; SCM ; cirkulär ekonomi.;

   Abstract : There is an ongoing transition to a more sustainable industry with lower climate impact. As part of this transition, the steel industry is expected to move from the conventional process for producing iron and steel using Blast Furnace (BF) and Basic Oxygen Furnace (BOF) processes, consuming large amounts of fossil fuels. READ MORE

5. 4. The Effects of ETS & CBAM on Cost Differences in the European Steel Industry : A Case Study on Swedish and German Long Engineering Steel Manufacturers

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

   Author : Tim Fahlstedt; Oliver Håkansson; [2022]
   Keywords : ETS; CBAM; Carbon Leakage; Steel; EAF; Scrap; Cost Predictions.; ETS; CBAM; Koldioxidläckage; Stål; Ljusbågsugn; Skrot; Kostnadsanalys.;

   Abstract : To combat anthropogenic climate change and comply with the Paris Agreement, the EU has previously introduced its Emissions Trading System (ETS) and has now also proposed a Carbon Border Adjustment Mechanism (CBAM). While these tools may reduce emissions within the EU, and in some cases, even in other countries, they can also affect European industries in unpredictable and sometimes negative ways. READ MORE

6. 5. 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