Results 21 to 30 of about 801 (155)

Multistage dilute acid leaching of a medium grade iron ore to super-concentrate [PDF]

Journal of Mining and Metallurgy. Section A: Mining, 2014
The phosphorous laden Koton Karfe iron ore is a medium grade iron ore deposit in Nigeria that can be upgraded as a super-concentrate for use at the Aladja Steel Midrex plant.
Adeleke A.A., Olawale J.O., Oluwasegun K.M., Shittu M.D., Azeez A.D., Falana O.   +5 more
doaj   +1 more source

Pressurized Chemical Looping for Direct Reduced Iron Production: Carbon Neutral Process Configuration and Performance

Energies, 2022
To achieve net-zero iron and steel production by 2050, many iron and steel producers are turning to direct reduced iron (DRI)—electric arc furnace (EAF) steel production as an opportunity to achieve significant CO2 emissions reductions relative to ...
Nicole Bond, Robert Symonds, Robin Hughes   +2 more
doaj   +1 more source

Regional analysis of aluminum and steel flows into the American automotive industry

Journal of Industrial Ecology, Volume 26, Issue 4, Page 1318-1332, August 2022., 2022
Abstract Aluminum and steel represent the two most dominant metals in light‐duty vehicles, yet the flows of these materials into the American automotive industry have not been well characterized. This study proposes and implements a method for analyzing the flow of these metals into the automotive industry.
Nate P. Hua, Jarod C. Kelly, Geoffrey M. Lewis, Gregory A. Keoleian   +3 more
wiley   +1 more source

Future Scenarios for Reducing Emissions and Consumption in the Italian Steelmaking Industry

steel research international, Volume 93, Issue 5, May 2022., 2022
An environmental impact assessment is carried out to evaluate the most effective future scenario for the Italian steel industry. CO2 emissions, water, and electricity consumption, land use, and economic feasibility of three different scenarios (use of CCS, green hydrogen, and biomethane) are calculated, highlighting their strengths and weaknesses and ...
Carlo Mapelli, Gianluca Dall’Osto, Davide Mombelli, Silvia Barella, Andrea Gruttadauria   +4 more
wiley   +1 more source

Production of Negative-Emissions Steel Using a Reducing Gas Derived from DFB Gasification

Energies, 2021
A dual fluidized bed (DFB) gasification process is proposed to produce sustainable reducing gas for the direct reduction (DR) of iron ore. This novel steelmaking route is compared with the established process for DR, which is based on natural gas, and ...
Sébastien Pissot, Henrik Thunman, Peter Samuelsson, Martin Seemann   +3 more
doaj   +1 more source

Improving the operational efficiency of Midrex H2 and blast furnace processes through the optimization of pellet metallization

MININGMETALTECH 2024 – THE MINING AND METALS SECTOR: INTEGRATION OF BUSINESS, TECHNOLOGY AND EDUCATION. Volume 1
D.O. Tymoshenko, V.V. Kukhar
openaire   +3 more sources

Selection of an Inert Gas System for the Transportation of Direct Reduced Iron

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Direct reduced iron (DRI) can create significant risks such as ignition, explosion, and fire because of the oxidation reaction in case when DRI undergoes spontaneously heating and comes in contact with oxygen or water. For this reason, the transportation of DRI is classified as a dangerous task of which the inert process should be done in the ship’s ...
Devran Yazir, Bekir Sahin, Murat Alkac, Rahib Abiyev   +3 more
wiley   +1 more source

Simulation of Mechanical Degradation of Iron Ore Pellets in a Direct Reduction Furnace

KONA Powder and Particle Journal, 2017
The increase in production of steel in electric arc furnaces in recent years influenced directly the world production of direct reduction iron (DRI). Amongst the most widely used technologies for DRI production is the MIDREX® process. The behavior of the
Fernando O. Boechat, Rodrigo M. de Carvalho, Luís Marcelo Tavares   +2 more
doaj   +1 more source

The modern technology of iron and steel production and possible ways of their development [PDF]

, 2015
В изменяющейся мировой обстановке на рынке сырых материалов для черной металлургии разрабатывается ряд новых технологий по производству чугуна и стали, альтернативных существующим технологиям, которые способны обеспечить экономически устойчивую работу ...
Freislich, M., Gordon, Y., Kumar, S., Spirin, N., Yaroshenko, Y.   +4 more
core   +2 more sources

Investigation into the Hot Briquetting of Fine‐Grained Residual Materials from Iron and Steel Production

steel research international, Volume 91, Issue 12, December 2020., 2020
The Midrex direct reduction process produces a large number of fine‐grained, ferrous residues. The combined hot briquetting of the residues with direct reduced iron (DRI) offers a possibility for recycling. Tests show that despite the addition of up to 20 wt% residual material during hot briquetting, it is possible to produce hot briquetted iron (HBI ...
Laura Lohmeier, Ralf Wollenberg, Hans-Werner Schröder   +2 more
wiley   +1 more source