Zur Optimierung der Eigenschaften von Eisenerzsintern

Mazanek, E; Wyderko, Marta

doi:10.1002/srin.197603841

Cited by 2 publications

(3 citation statements)

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“…The reducibility of all phases is different. In general, if silica is included in the phase, the reducibility is worse compared with other phases . Increasing MgO contents also lower the reducibility of a sinter .…”

Section: Rate‐limiting Mechanism During Iron Oxide Reductionmentioning

confidence: 99%

“…In general, if silica is included in the phase, the reducibility is worse compared with other phases. [46,47] Increasing MgO contents also lower the reducibility of a sinter. [48] Yadav et al [49] mentioned that a decrease of hematite and calcioferrite and an increase in spinel phases with low reducibility are responsible.…”

Section: Effect Of Iron Oxide Gangue On the Reduction Ratementioning

confidence: 99%

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Reduction of Iron Oxides with Hydrogen—A Review

Spreitzer

Schenk

2019

steel research int.

390

161

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This review focuses on the reduction of iron oxides using hydrogen as a reducing agent. Due to increasing requirements from environmental issues, a change of process concepts in the iron and steel industry is necessary within the next few years. Currently, crude steel production is mainly based on fossil fuels, and emitting of the climate‐relevant gas carbon dioxide is integral. One opportunity to avoid or reduce greenhouse gas emissions is substituting hydrogen for carbon as an energy source and reducing agent. Hydrogen, produced via renewable energies, allows carbon‐free reduction and avoids forming harmful greenhouse gases during the reduction process. The thermodynamic and kinetic behaviors of reduction with hydrogen are summarized and discussed in this review. The effects of influencing parameters, such as temperature, type of iron oxide, grain size, etc. are shown and compared with the reduction behavior of iron oxides with carbon monoxide. Different methods to describe the kinetics of the reduction progress and the role of the apparent activation energy are shown and proofed regarding their plausibility.

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Section: Rate‐limiting Mechanism During Iron Oxide Reductionmentioning

confidence: 99%

Section: Effect Of Iron Oxide Gangue On the Reduction Ratementioning

confidence: 99%

Reduction of Iron Oxides with Hydrogen—A Review

Spreitzer

Schenk

2019

steel research int.

390

161

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“…The relation between microstructure and CO 2 captures by Fe 2 O 3 , Fe 3 O 4 , and FeO has been widely investigated in the literature [96,99,114].…”

Section: Microstructural Changes In Co 2 Capture By Iron Oxidesmentioning

confidence: 99%

Reduction of Iron Oxides for CO2 Capture Materials

Fabozzi,

Cerciello,

Senneca

2024

Energies

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The iron industry is the largest energy-consuming manufacturing sector in the world, emitting 4–5% of the total carbon dioxide (CO2). The development of iron-based systems for CO2 capture and storage could effectively contribute to reducing CO2 emissions. A wide set of different iron oxides, such as hematite (Fe2O3), magnetite (Fe3O4), and wüstite (Fe(1−y)O) could in fact be employed for CO2 capture at room temperature and pressure upon an investigation of their capturing properties. In order to achieve the most functional iron oxide form for CO2 capture, starting from Fe2O3, a reducing agent such as hydrogen (H2) or carbon monoxide (CO) can be employed. In this review, we present the state-of-the-art and recent advances on the different iron oxide materials employed, as well as on their reduction reactions with H2 and CO.

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Zur Optimierung der Eigenschaften von Eisenerzsintern

Cited by 2 publications

References 1 publication

Reduction of Iron Oxides with Hydrogen—A Review

Reduction of Iron Oxides with Hydrogen—A Review

Reduction of Iron Oxides for CO2 Capture Materials

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