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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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Tang, Yali
Eindhoven University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Innovative Electrolytic Production of Iron Powder for the Circularity of Iron Fuel Cycle
- 2024Innovative Electrolytic Production of Iron Powder for the Circularity of Iron Fuel Cycle
- 2024On the formation of dendritic iron from alkaline electrochemical reduction of iron oxide prepared for metal fuel applicationscitations
- 2024On the formation of dendritic iron from alkaline electrochemical reduction of iron oxide prepared for metal fuel applicationscitations
- 2024A Rotating Disc Electrochemical Reactor to Produce Iron Powder for the Co2-Free Iron Fuel Cycle
- 2024RUST-TO-GREEN IRON
- 2023Dendritic Iron Formation in Low-Temperature Iron Oxide Electroreduction Process using Alkaline Solution
- 2023Dendritic Iron Formation in Low-Temperature Iron Oxide Electroreduction Process using Alkaline Solution
- 2023Minimum fluidization velocity and reduction behavior of combusted iron powder in a fluidized bedcitations
- 2023Sintering behavior of combusted iron powder in a packed bed reactor with nitrogen and hydrogencitations
- 2023Comparative study of electroreduction of iron oxide using acidic and alkaline electrolytes for sustainable iron productioncitations
- 2023Comparative study of electroreduction of iron oxide using acidic and alkaline electrolytes for sustainable iron productioncitations
- 2023Regenerating Iron via Electrolysis for CO2-Free Energy Storage and Carrier
- 2022Electrochemical Reduction of Iron Oxide - Produced from Iron Combustion - for the Valorization of Iron Fuel Cycle
- 2022Reactiekinetiek van verbrand ijzerpoeder met waterstof ; Reduction kinetics of combusted iron powder using hydrogencitations
- 2022Reduction kinetics of combusted iron powder using hydrogencitations
- 2022Experimental Study of Iron Oxide Electroreduction with Different Cathode Material
Places of action
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article
Sintering behavior of combusted iron powder in a packed bed reactor with nitrogen and hydrogen
Abstract
Sintering behavior of micron-sized combusted iron powder is studied in a packed bed reactor, at various temperatures under inert (nitrogen) and reducing (hydrogen) conditions. Compression tests are subsequently used to quantify the degree of sintering. A sintering model, based on the formation of a solid bridge through solid state surface diffusion of iron atoms, matches the experimental results. Sintering of combusted iron occurs at temperatures C in both nitrogen and hydrogen atmospheres and increases exponentially with temperature. The observed decrease in reduction rate at high temperatures is not caused by the sintering process but by the formation of wüstite as an intermediate species, leading to the formation of a dense iron layer. Iron whiskers form at high temperatures (C) in combination with low reduction rates (vol% H2), leading to the production of sub-micron fines. ; Sintering behavior of micron-sized combusted iron powder is studied in a packed bed reactor, at various temperatures under inert (nitrogen) and reducing (hydrogen) conditions. Compression tests are subsequently used to quantify the degree of sintering. A sintering model, based on the formation of a solid bridge through solid state surface diffusion of iron atoms, matches the experimental results. Sintering of combusted iron occurs at temperatures ≥575°C in both nitrogen and hydrogen atmospheres and increases exponentially with temperature. The observed decrease in reduction rate at high temperatures is not caused by the sintering process but by the formation of wüstite as an intermediate species, leading to the formation of a dense iron layer. Iron whiskers form at high temperatures (≥700°C) in combination with low reduction rates (≤25 vol% H 2 ), leading to the production of sub-micron fines.