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Higher cost and resource efficiencies through a development of the empirical model of chromium concentrations

Title data

Risonarta, Victor ; Echterhof, Thomas ; Kirschen, Marcus ; Jung, Hans-Peter ; Lenz, Stefan ; Beiler, Christoph ; Pfeifer, Herbert:
Higher cost and resource efficiencies through a development of the empirical model of chromium concentrations.
In: Proceedings - METEC InSteelCon 2011. - Düsseldorf : Stahlinstitut VDEh , 2011 . - 12 S.

Abstract in another language

During stainless steelmaking in an electric arc furnace (EAF), chromium concentrations at tapping should be well pre-estimated for some reasons. Both excessively low and high chromium concentrations require rebalancing procedures with ferro-alloys, e.g. HC-FeCr or FeNi, which decreases liquid steel temperature and EAF energy efficiency. Excessive chromium input also retards the decarburisation and dephosphorisation processes. A new strategy is outlined in this paper to obtain higher energy and raw materials efficiencies, higher productivity, lower electrode consumption, less thermal load on the EAF’s wall, less refractory wear, and a lower production cost. In the mean time, the steel industry is also facing a challenge on how to increase the productivity and decrease the CO2 emissions at the same time. This paper provides a single solution to address both challenges since the result of research study outlined in this paper provides an opportunity to significantly decrease the indirect CO2 emissions generated during production of alloy materials, slag additives, and electricity.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: production cost; economic benefit; productivity; CO2 emissions; energy efficiency
Institutions of the University: Faculties > Faculty of Engineering Science
Research Institutions > Affiliated Institutes > Fraunhofer Center for High Temperature Materials and Design (HTL)
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 18 Jun 2019 11:29
Last Modified: 18 Jun 2019 11:29
URI: https://eref.uni-bayreuth.de/id/eprint/49561