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Raw material assessment for electric arc furnace steelmaking
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2015 (English)In: Proceedings of the 6th International Congress on the Science and Technology of Steelmaking, ICS 2015, Chinese Society for Metals , 2015, 288-292 p.Conference paper (Refereed)
Abstract [en]

In this study, steelmaking in an Electric Arc Furnace, EAF, using two types of recycled scrap with different levels of tramp-Cu and different prices, is compared to steelmaking where part of the burden is changed to a virgin iron source. By using the tool Rawmatmix® for optimizing EAF charges, a Value in Use, ViU, is calculated for Blast Furnace Hot metal, Pig Iron, Hot and Cold DRI and HBI. The result shows that the ViU per ton material differs from +57% to -39% for the different sources. Using virgin material also affects the environmental profile of the product and especially the Global Warming Potential, with different CO2 burdens depending on source. The paper shows the importance of making ViU calculations when establishing a raw material price.

Place, publisher, year, edition, pages
Chinese Society for Metals , 2015. 288-292 p.
Keyword [en]
Electric arc furnace, Global warming potential, HBI, Hot metal, Pig iron, Scrap, Tramp element, Value in use, Blast furnaces, Carbon dioxide, Electric arcs, Electric furnace process, Global warming, Iron, Iron scrap, Scrap metal, Scrap metal reprocessing, Steelmaking, Steelmaking furnaces, Tramp elements, Electric furnaces
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194656ScopusID: 2-s2.0-84983113530OAI: oai:DiVA.org:kth-194656DiVA: diva2:1050737
Conference
6th International Congress on the Science and Technology of Steelmaking, ICS 2015, 12 May 2015 through 14 May 2015
Note

QC 20161130

Available from: 2016-11-30 Created: 2016-10-31 Last updated: 2016-11-30Bibliographically approved

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Jönsson, Pär
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