Results 11 to 20 of about 130 (110)

Study on magnetic concentration of Nigerian Itakpe sinter concentrate to a Midrex-grade concentrate [PDF]

Maejo International Journal of Science and Technology, 2009
The sinter grade of the Nigerian Itakpe iron ore that assayed 63.63% Fe and 6.62% total acid gangue was subjected to both wet low-intensity magnetic separation (LIMS) and wet high-intensity magnetic separation (WHIMS) to upgrade it to Midrex-grade super ...
Adewale O. Adeleke
doaj   +3 more sources

Modeling and optimization of methanol-fueled MIDREX reformers for energy-efficient hydrogen production

Energy Conversion and Management: X
This study evaluates, at the reformer level only, whether methanol can replace methane as the feed to a MIDREX reformer while still delivering MIDREX-compatible syngas.
Mahmoud Makki Abadi, Mohammad Mehdi Rashidi, Udayabhaskararao Thumu   +2 more
doaj   +2 more sources

Investigating the Correlation between the Components of the Reducing Gas and the Percentage of Metal and Carbon in Sponge Iron Produced in the Midrex Direct Reduction Furnace [PDF]

Iranian Journal of Chemistry & Chemical Engineering
This study systematically investigates correlations between the metallurgical properties of sponge iron (reduced iron and C%) and reducing gas composition in a MIDREX direct reduction furnace. Using direct laboratory measurements from industrial samples,
Hamid Abedifard, Mojtaba Haratian, Saeed Daneshmand, Seyed Ali Eftekhari   +3 more
doaj   +2 more sources

Cost and Life Cycle Analysis for Deep CO2 Emissions Reduction for Steel Making: Direct Reduced Iron Technologies

steel research international, Volume 94, Issue 6, June 2023., 2023
Herein, comprehensive cradle‐to‐gate life cycle analysis and techno‐economic analysis are used to evaluate the CO2 emissions, levelized cost of steel, and CO2 avoidance cost of three direct reduced iron technologies. All the technologies have more than 90% CO2 emissions reduction compared to current industrial baseline after the application of ...
Guiyan Zang, Pingping Sun, Amgad Elgowainy, Pallavi Bobba, Colin McMillan, Ookie Ma, Kara Podkaminer, Neha Rustagi, Marc Melaina, Mariya Koleva   +9 more
wiley   +1 more source

Hydrogen‐Based Direct Reduction of Iron Oxides Pellets Modeling

steel research international, Volume 94, Issue 6, June 2023., 2023
The schematic of the hydrogen‐based direct reduction plants for iron oxides pellets is presented. The green hydrogen is provided through water electrolysis. The present study deals with the analyses of the direct reduction kinetics during the hydrogen reduction of industrial iron oxide pellets.
Pasquale Cavaliere, Angelo Perrone, Debora Marsano, Vito Primavera   +3 more
wiley   +1 more source

Exploring the emergence of waste recovery and exchange in industrial clusters

Journal of Industrial Ecology, Volume 27, Issue 3, Page 937-950, June 2023., 2023
Abstract Self‐organized industrial symbiosis (IS) starts with one actor's decision to invest in a waste recovery plant and the other actors' decision to buy the recovered flow. Technical and institutional conditions of the cluster influence actors' decisions.
Shiva Noori, Gijsbert Korevaar, Rob Stikkelman, Andrea Ramírez   +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

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

Pressurized Chemical Looping for Direct Reduced Iron Production: Economics of Carbon Neutral Process Configurations

Energies
The replacement of the blast furnace—basic oxygen furnace (BF-BOF) steelmaking route with the direct reduced iron—electric arc furnace (DRI-EAF) route reduces the direct CO2 emissions from steelmaking by up to 68%; however, the DRI shaft furnace is one ...
Nicole K. Bond, Robert T. Symonds, Robin W. Hughes   +2 more
doaj   +1 more source