Hydrogen-based direct reduction of iron oxide at 700°C: Heterogeneity at pellet and microstructure scales

• Published in: International journal of minerals, metallurgy and materials Vol. 29; no. 10; pp. 1901 - 1907
• Main Authors: Ma, Yan, Souza Filho, Isnaldi R., Zhang, Xue, Nandy, Supriya, Barriobero-Vila, Pere, Requena, Guillermo, Vogel, Dirk, Rohwerder, Michael, Ponge, Dirk, Springer, Hauke, Raabe, Dierk
• Format: Journal Article
• Language: English
• Published: Beijing University of Science and Technology Beijing 01.10.2022; Springer Nature B.V
• Subjects: Carbon; Carbon dioxide emissions; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Climate change; Composites; Corrosion and Coatings; Direct reduced iron; Electron backscatter diffraction; Free surfaces; Furnaces; Glass; Global warming; Heterogeneity; Hydrogen; Hydrogen reduction; Industrial emissions; Iron and steel industry; Iron ores; Iron oxides; Materials Science; Metallic Materials; Metallizing; Microstructure; Natural Materials; Nucleation; Pellets; Reducing agents; Steel industry; Steel making; Steel production; Surfaces and Interfaces; Synchrotrons; Thin Films; Tribology; X-ray diffraction; iron oxide; metallization; hydrogen-based direct reduction; microstructure; spatial gradient

Steel production causes a third of all industrial CO 2 emissions due to the use of carbon-based substances as reductants for iron ores, making it a key driver of global warming. Therefore, research efforts aim to replace these reductants with sustainably produced hydrogen. Hydrogen-based direct redu...