Results 31 to 40 of about 1,058 (212)

Development of methods and algorithms for parameter estimation system of decarburization and combustible gas afterburning modes in an electric arc furnace

Advanced Engineering Research, 2017
Introduction. Currently, in the Russian metallurgy, waste-gas heat under steelmaking in the electric arc furnace (EAF) is used inefficiently. This determines the urgency of the task to develop methods for СО to СО2 afterburning degree control under ...
Eduard E. Merker, Victor A. Stepanov, Lyudmila N. Krakht, Alexander Yu. Kem   +3 more
doaj   +1 more source

Mass and energy based modelling of EAF steelmaking scenarios using scrap and hydrogen reduced DRI as raw materials [PDF]

Pressure for radical reduction of CO2 emission in steel industry favours EAF steelmaking using scrap and hydrogen reduced iron (H2DRI) as raw material over traditional blast furnace-based production.
Ollila, Seppo, Heikkinen, Eetu-Pekka, Sulasalmi, Petri, Visuri, Ville-Valtteri, Lilja, Jarmo   +4 more
core   +1 more source

Numerical simulation research on molten steel flow under different gas flow rates in the eccentric bottom tapping zone of electric arc furnace

工程科学学报, 2018
The application of the bottom-blowing process in electric arc furnace (EAF) steelmaking process can shorten the mixing time of the molten bath effectively;accelerate the removal of carbon, phosphorus, and sulfur;as well as improve the production ...
YANG Ze-shi, YANG Ling-zhi, SONG Jing-ling, GUO Yu-feng, WEI Guang-sheng, WANG Bo-hui, SUN Yong-zhao   +6 more
doaj   +1 more source

Internal Carbon Cycles in the Steel Industry: Pathways for CO2 Management and Carbon Capture Utilization

Chemie Ingenieur Technik, EarlyView.
The steel industry accounts for about 7%‐9% of global CO2 emissions. While H2‐based direct reduction is a long‐term route, near‐term solutions are needed for existing plants. Internal carbon cycles reuse steelworks off‐gases and by‐products, enabling circular carbon use and supporting CCU integration.
Florian Haakmann, Nina Kolbe, Julian Suer, Cássia Castro Müller, Nils Jäger   +4 more
wiley   +1 more source

Interaction Behavior of Biogenic Material with Electric Arc Furnace Slag

Fuels, 2021
Electric arc furnaces (EAFs) are used for steel production, particularly when recycling scrap material. In EAFs, carbonaceous material is charged with other raw materials or injected into molten slag to generate foam on top of liquid metal to increase ...
Xianai Huang, Ka Wing Ng, Louis Giroux, Marc Duchesne, Delin Li, Ted Todoschuk   +5 more
doaj   +1 more source

Alteration of Phase Transformation Behavior and Prior Austenite Grain Structure Due to Elevated Tramp Element Concentrations in a Hypoeutectoid Steel

steel research international, EarlyView.
The phase transformation behavior of a hypoeutectoid steel is studied in comparison with alloys containing higher concentrations of tramp elements, simulating high recycling rates. The examination of microstructures reveals that the tramp elements facilitate the formation of displacive phases along with retained austenite.
Lukas Hatzenbichler, Marek Gocnik, Phillip Haslberger, Matthew Galler, Andreas Stark, Oleksandr Glushko, Jozef Keckes, Ronald Schnitzer   +7 more
wiley   +1 more source

Modellierung und Prozesssimulation des Elektrolichtbogenofens (EAF) [PDF]

, 2023
Electric Arc Furnace (EAF) steelmaking accounts for about one third of global crude steel production. Compared to iron ore based process routes, steel scrap recycling in the EAF significantly lowers energy consumption and CO2 emissions.
Völkl, Hermann
core   +1 more source

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

steel research international, EarlyView.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam, Shine‐Od Mongoljiibuu, Alexander Specht, Daniel Grüner, Dmitry Sergeev, Urs A. Peuker, Michael Müller, Ruth Schwaiger   +7 more
wiley   +1 more source

Effect of Intrinsic Carbon in Hot Briquetted Iron on Melting and Refining Efficiency under Electric Arc Furnace Conditions for Sustainable Steelmaking with Active Use of H2‐Reduced Iron

steel research international, EarlyView.
The melting behavior of hot briquetted iron (HBI) is observed and compared with FactSage computing simulation. When using HBI in an electric arc furnace process, a proper design of intrinsic carbon content in HBI, charging ratio of HBI, and addition of lime are proposed to be essential to control the slag volume, maintain slag basicity, and mitigate ...
Min Joo Lee, Joo Hyun Park
wiley   +1 more source

New method for estimating the economic penalties of ferrous scraps in the steelmaking industry due to material degradation during its storage in scrap yards

, 2020
Publisher Copyright: © 2020, © 2020 Institute of Materials, Minerals and Mining.The ever-increasing pressure on the steelmaking industry to reduce its environmental footprint and achieve higher performance ispushing the sector to continuous improvement ...
Barco, Estibaliz, Vicente, Asier, Picon, Artzai   +2 more
core   +1 more source