Sökning: "direktreduktion"
Hittade 5 uppsatser innehållade ordet direktreduktion.
1. Theoretical Considerations and Experimental Observations on Heat Transfer in Hydrogen Direct Reduced Iron
Master-uppsats, KTH/MaterialvetenskapSammanfattning : 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
2. Conditions for Industrial Symbiosis surrounding a hydrogen based steel industry
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : 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. LÄS MER
3. Utvärdering av kvalitetsvariation i enlighet med ISO 3084
Uppsats för yrkesexamina på avancerad nivå, Örebro universitet/Institutionen för naturvetenskap och teknikSammanfattning : Luossavaara Kiirunavaara Aktiebolag (LKAB) är ett av Sveriges äldsta industriföretag som bedriver världens två största underjordsgruvor för järnmalmsbrytning och deras huvudprodukt är järnmalmspellets. Hög och stabil kvalitet är av stor vikt för LKAB, därav är kvalitetskontroll en av deras nyckelaktiviteter. LÄS MER
4. Life cycle assessment of coal based direct-reduced iron production in India
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : 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. LÄS MER
5. Towards a fossil free steel sector : Conditions for technology transfer of hydrogenbased iron and steel in Europe
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : 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. LÄS MER