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

doi:10.1007/s12613-022-2440-5

IMR OpenIR

	Hydrogen-based direct reduction of iron oxide at 700 degrees C: Heterogeneity at pellet and microstructure scales
	Ma, Yan 1; Souza Filho, Isnaldi R.1; Zhang, Xue 1,2; Nandy, Supriya 1; Barriobero-Vila, Pere 3; Requena, Guillermo 3,4; Vogel, Dirk 1; Rohwerder, Michael 1; Ponge, Dirk 1; Springer, Hauke 1,5; Raabe, Dierk 1
通讯作者	Ma, Yan(y.ma@mpie.de) ; Raabe, Dierk(d.raabe@mpie.de)
	2022-10-01
发表期刊	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN	1674-4799
卷号	29 期号:10 页码:1901-1907
摘要	Steel production causes a third of all industrial CO2 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 reduction (HyDR) is an attractive processing technology, given that direct reduction (DR) furnaces are routinely operated in the steel industry but with CH4 or CO as reductants. Hydrogen diffuses considerably faster through shaft-furnace pellet agglomerates than carbon-based reductants. However, the net reduction kinetics in HyDR remains extremely sluggish for high-quantity steel production, and the hydrogen consumption exceeds the stoichiometrically required amount substantially. Thus, the present study focused on the improved understanding of the influence of spatial gradients, morphology, and internal microstructures of ore pellets on reduction efficiency and metallization during HyDR. For this purpose, commercial DR pellets were investigated using synchrotron high-energy X-ray diffraction and electron microscopy in conjunction with electron backscatter diffraction and chemical probing. Revealing the interplay of different phases with internal interfaces, free surfaces, and associated nucleation and growth mechanisms provides a basis for developing tailored ore pellets that are highly suited for a fast and efficient HyDR.
关键词	hydrogen-based direct reduction iron oxide microstructure spatial gradient metallization
资助者	Walter Benjamin Programme of the Deutsche Forschungsgemeinschaft ; Capes-Humboldt ; Heisenberg Programme of the Deutsche Forschungsgemeinschaft
DOI	10.1007/s12613-022-2440-5
收录类别	SCI
语种	英语
资助项目	Walter Benjamin Programme of the Deutsche Forschungsgemeinschaft[468209039] ; Capes-Humboldt[88881.512949/2020-01] ; Heisenberg Programme of the Deutsche Forschungsgemeinschaft[SP 1666 2/1]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS记录号	WOS:000842414200010
出版者	SPRINGER
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174474
专题	中国科学院金属研究所
通讯作者	Ma, Yan; Raabe, Dierk
作者单位	1.Max Planck Inst Eisenforsch GmbH, Max Planck Str 1, D-40237 Dusseldorf, Germany 2.Chinese Acad Sci, Corros Ctr, Inst Met Res, Shenyang 110016, Peoples R China 3.German Aerosp Ctr, Inst Mat Res, D-51147 Cologne, Germany 4.Rhein Westfal TH Aachen, Lehr & Forschungsgebiet Metall Strukturen & Werks, D-52062 Aachen, Germany 5.Rhein Westfal TH Aachen, Inst Bildsame Formgebung, Intzestr 10, D-52072 Aachen, Germany
推荐引用方式 GB/T 7714	Ma, Yan,Souza Filho, Isnaldi R.,Zhang, Xue,et al. Hydrogen-based direct reduction of iron oxide at 700 degrees C: Heterogeneity at pellet and microstructure scales[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2022,29(10):1901-1907.
APA	Ma, Yan.,Souza Filho, Isnaldi R..,Zhang, Xue.,Nandy, Supriya.,Barriobero-Vila, Pere.,...&Raabe, Dierk.(2022).Hydrogen-based direct reduction of iron oxide at 700 degrees C: Heterogeneity at pellet and microstructure scales.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,29(10),1901-1907.
MLA	Ma, Yan,et al."Hydrogen-based direct reduction of iron oxide at 700 degrees C: Heterogeneity at pellet and microstructure scales".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 29.10(2022):1901-1907.