| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kovtun, Oleksandr
TU Bergakademie Freiberg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2024Results of Hydrogen Reduction of Iron Ore Pellets at Different Temperaturescitations
- 2023Swelling Behavior of Iron Ore Pellets during Reduction in H<sub>2</sub> and N<sub>2</sub>/H<sub>2</sub> Atmospheres at Different Temperaturescitations
- 2023Properties of liquid CaO–SiO2 and CaO–SiO2-‘Fe2O3’tot slags measured by a combination of maximum bubble pressure and rotating bob methodscitations
- 2023Phosphorus Partition Between Liquid Crude Steel and High-Basicity Basic Oxygen Furnace Slags Containing V2O5citations
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article
Swelling Behavior of Iron Ore Pellets during Reduction in H<sub>2</sub> and N<sub>2</sub>/H<sub>2</sub> Atmospheres at Different Temperatures
Abstract
<jats:p>The need to develop green steelmaking techniques has led to the replacement of reducing agents such as CO with H<jats:sub>2</jats:sub>. H<jats:sub>2</jats:sub> and N<jats:sub>2</jats:sub>/H<jats:sub>2</jats:sub> mixtures can be used for the carbothermal reduction of iron ore. Herein, the reduction swelling index (RSI) of iron ore pellets in a forming gas (N<jats:sub>2</jats:sub>/H<jats:sub>2</jats:sub>) atmosphere at temperatures of 700–1000 °C is investigated and it is compared with that in pure H<jats:sub>2</jats:sub>. It is showed in the experimental results that the RSI increases with increasing temperature for both the H<jats:sub>2</jats:sub> and N<jats:sub>2</jats:sub>/H<jats:sub>2</jats:sub> atmospheres. The maximum swelling is reached approximately 5 min into the H<jats:sub>2</jats:sub> reduction process, while in the N<jats:sub>2</jats:sub>/H<jats:sub>2</jats:sub> atmosphere, it is reached after 25–45 min of reduction, depending on the temperature. When the reduction temperature exceeds 900 °C, the RSI is greater than 20%. Scanning electron microscopy/energy‐dispersive X‐ray spectroscopy is performed to detect the changes in the microstructure and chemical composition of the samples. The nonreduced areas in the reduced pellets during the N<jats:sub>2</jats:sub>/H<jats:sub>2</jats:sub> reduction process are analyzed using light optical microscopy.</jats:p>