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Benefits of gas purging in EAF with a focus on material efficiency and CO2 emission reduction

Titelangaben

Kirschen, Marcus ; Zettl, Karl-Michael:
Benefits of gas purging in EAF with a focus on material efficiency and CO2 emission reduction.
In: Proceedings - METEC & 2nd ESTAD 2015, European Steel Technology and Application Days. - Düsseldorf : Stahlinstitut VDEh , 2015 . - 5 S.

Abstract

In highly competitive steel markets worldwide, an economical and climate-friendly steelmaking process is required to ensure profitable crude steel production in future. Considering the tightening global CO2 emission requirements,
which result in rising energy prices and purchasing of CO2 emission certificates, raw material and energy efficiency has to be optimized continuously. One option for increasing resource efficiency in the primary steelmaking process chain is the usage of bottom inert gas purging in the EAF for melting and refining of scrap, direct reduced iron, hot metal, and alloys. Gas purging increases mass and energy transfer in the molten metal, the mixing energy and the bath kinetics, promoting improved reaction capacities for decarburization and dephosphorization. Higher thermal and chemical homogeneity of the liquid metal bath, better process control and increased yield of raw materials by reduction of agent, alloy and oxygen consumptions are essential benefits as well.

Weitere Angaben

Publikationsform: Aufsatz in einem Buch
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften
Forschungseinrichtungen > Institute in Verbindung mit der Universität > Fraunhofer-Zentrum für Hochtemperatur-Leichtbau (HTL)
Fakultäten
Forschungseinrichtungen
Forschungseinrichtungen > Institute in Verbindung mit der Universität
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 18 Jun 2019 12:33
Letzte Änderung: 18 Jun 2019 12:33
URI: https://eref.uni-bayreuth.de/id/eprint/49567