Results 111 to 120 of about 801 (155)

Experimental and numerical study of the rib effect in a gas-gas heat exchanger performance used in a sponge iron production plant (MIDREX)

open access: closedProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2021
Heat loss is a leading cause of heightened global temperatures and carbon dioxide. The energy crisis has raised concerns on addressing heat recovery, especially in iron and steel industries. Iron and steel industries are consuming roughly 10 to 15 percent of the world’s energy.
AM Hosseini, A Faghih Khorasani
openaire   +2 more sources

Optimization of Midrex Direct Reduced Iron Use in Ore‐Based Steelmaking

open access: closedsteel research international, 2014
Iron and steel industry contributes by more than 5% to the global anthropogenic CO2 emissions, so new ways to reduce the emissions in this industrial sector must be found. In order to facilitate a transition to more sustainable production concepts, economic factors must be considered.
Helle, Mikko   +5 more
openaire   +6 more sources

Regeneration of the Midrex Reformer Catalysts Using Supercritical Carbon Dioxide

open access: closedChemical Engineering Journal, 2018
Abstract Optimum operating conditions are established for the regeneration of the deactivated Midrex reformer nickel-alumina (Ni/Al2O3) catalysts employed in Khouzestan Steel Company (KSC) using supercritical carbon dioxide. In addition, the impacts of a range of parameters, including static time, flow rate, pressure, and temperature, on extraction ...
Erfan Sadatshojaei   +4 more
openaire   +2 more sources

MODEL-BASED ENERGY ANALYSIS OF AN INTEGRATED MIDREX-BASED IRON/STEEL PLANT

open access: closedChemical Engineering Communications, 2014
This article presents modeling and simulations of an integrated plant for the production of steel using the direct reduced iron (DRI)/electric arc furnace (EAF) route. In a previous work (Alhumaizi et al., 2012), a comprehensive mathematical model of an iron plant based on MIDREX technology was developed, validated, and simulated.
Ajbar, AbdelHamid M   +3 more
openaire   +2 more sources

Behavior of Extrusion Briquettes in Midrex Reactors. Part 2*

open access: closedMetallurgist, 2016
Results are presented from tests involving the metallization of extrusion briquettes in an industrial reactor (Midrex process). The brex are made from screenings of oxidized pellets, partially metallized sludge, mill scale, and EAF dust with the use of two types of binders.
I. F. Kurunov   +3 more
openaire   +2 more sources

Influence of the reducing-gas distribution in the tuyere belt on the buildup in midrex furnaces

open access: closedSteel in Translation, 2013
The influence of the reducing-gas distribution in Midrex furnaces is investigated. The temperature of the tuyere belt in the furnace lining is studied experimentally, and blockage of the tuyeres by buildup is analyzed. The tuyeres are mainly blocked on account of the nonuniform reducing-gas distribution, which is associated with the temperature ...
Yu. L. Zil’berberg   +3 more
openaire   +2 more sources

Modeling and Simulation of the MIDREX Shaft Furnace: Reduction, Transition and Cooling Zones

open access: closedJOM, 2015
Metallic iron used in steel industries is mostly obtained from a direct reduction process. The focus of this study is to simulate the furnace of the MIDREX technology. MIDREX technology which is the most important gas-based direct reduced iron (DRI) process in the world, includes reduction, transition and cooling zones. The reduction zone considered as
Alireza Shams, Faegheh Moazeni
openaire   +2 more sources

Thermodynamic Model of MIDREX Ironmaking Process Using FactSageTM and Macro Facility

open access: closedMetallurgical and Materials Transactions B, 2023
Sunil Yadav   +2 more
openaire   +2 more sources

Natural gas as a relatively clean substitute for coal in the MIDREX process for producing direct reduced iron

open access: closedEnergy for Sustainable Development, 2023
Maziar Ramezani Moziraji   +3 more
openaire   +2 more sources

MIDREX H2 — The Road to CO2-Free Iron and Steelmaking

open access: closedAISTech 2021 Proceedings of the Iron and Steel Technology Conference, 2021
C. Boehm   +6 more
openaire   +2 more sources

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