Kinetic analysis of iron ore powder reaction with hydrogen—carbon monoxide

Mao, Xudong; Garg, Pritesh; Hu, Xiaojun; Li, Yuan; Nag, Samik; Kundu, Saurabh; Zhang, Jianliang

doi:10.1007/s12613-022-2512-6

Cited by 25 publications

(2 citation statements)

References 27 publications

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“…Therefore, the authors proposed to ensure the efficient dephosphorization process by means of auxiliary heating and negative pressure. Zheng et al [6] studied the effect of pre-oxidization of magnetite-based iron ore on the fluidization behavior, and the results showed that the materials with higher oxidation temperature and wider particle size range showed better fluidization behaviors, while lower oxidation temperature was more beneficial for the reduction rate, especially in the later reduction stage. The pre-oxidation degree shows no obvious influence on the fluidization and reduction behaviors.…”

Section: Topic A: Hydrogen-enriched Behavior In Traditional Ironmakin...mentioning

confidence: 99%

Editorial for special issue on hydrogen metallurgy

Zhang

Schenk

Liu

et al. 2022

Int J Miner Metall Mater

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The carbon neutral strategy is promoting the transformation and upgrading of the traditional metallurgical industry, and the high-quality and low-carbon reform of the metallurgical industry is imperative. Hydrogen, as a clean energy in the 21st century, has a potential to realize low-carbon metallurgy from the source, and "hydrogen metallurgy" has become one of the most important directions for metallurgical industry. In recent years, the traditional metallurgical processes, represented by the steel industry, have developed rapidly in terms of hydrogen-rich smelting and new hydrogen metallurgy processes, indicating that the metallurgical industry is making rapid progress on the road of low-carbon transformation.In order to speed up the development of low-carbon metallurgical industry, a special issue of "Hydrogen Metallurgy" is published by the journal of International Journal of Minerals, Metallurgy and Materials (IJMMM). Experts and scholars from the world's top universities or research institutes including the Max Planck Institute in Germany and Kyushu University in Japan were invited to share their progress and prospects in "hydrogen metallurgy" research. The special issue includes a total of 12 papers, including a review of plasma hydrogen metallurgy and 11 research papers.The papers mainly focus on three directions: hydrogen-enriched behavior in traditional ironmaking process, hydrogenbased direct ironmaking process, and hydrogen plasma metallurgy. The special issue covers a comprehensive range of topics, from the innovation of traditional metallurgical processes to the development of new hydrogen-rich metallurgy processes, involving the current hot research directions in hydrogen metallurgy.

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Section: Topic A: Hydrogen-enriched Behavior In Traditional Ironmakin...mentioning

confidence: 99%

Editorial for special issue on hydrogen metallurgy

Zhang

Schenk

Liu

et al. 2022

Int J Miner Metall Mater

Self Cite

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“…This interaction is a critical step in the reduction process, facilitating the transformation of iron oxide into iron. The reduction potential of hydrogen (H 2 ) has been extensively analyzed across various studies, with the general consensus indicating that reduction with H 2 occurs more intensively and faster than with carbon monoxide (CO) or in an H 2 /CO mixture [33,47,51,60,[72][73][74]. Tao Zhang et al observed a reduction in fine-grained iron ore using both H 2 and CO in their study.…”

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confidence: 99%

An Overview Analysis of Current Research Status in Iron Oxides Reduction by Hydrogen

Miškovičová,

Legemza,

Demeter

et al. 2024

Metals

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This paper focuses on the study of current knowledge regarding the use of hydrogen as a reducing agent in the metallurgical processes of iron and steel production. This focus is driven by the need to introduce environmentally suitable energy sources and reducing agents in this sector. This theoretical study primarily examines laboratory research on the reduction of Fe-based, metal-bearing materials. The article presents a critical analysis of the reduction in iron oxides using hydrogen, highlighting the advantages and disadvantages of this method. Most experimental facilities worldwide employ their unique original methodologies, with techniques based on Thermogravimetric analysis (TGA) devices, fluidized beds, and reduction retorts being the most common. The analysis indicates that the mineralogical composition of the Fe ores used plays a crucial role in hydrogen reduction. Temperatures during hydrogen reduction typically range from 500 to 900 °C. The reaction rate and degree of reduction increase with higher temperatures, with the transformation of wüstite to iron being the slowest step. Furthermore, the analysis demonstrates that reduction of iron ore with hydrogen occurs more intensively and quickly than with carbon monoxide (CO) or a hydrogen/carbon monoxide (H2/CO) mixture in the temperature range of 500 °C to 900 °C. The study establishes that hydrogen is a superior reducing agent for iron oxides, offering rapid reduction kinetics and a higher degree of reduction compared to traditional carbon-based methods across a broad temperature range. These findings underscore hydrogen’s potential to significantly reduce greenhouse gas emissions in the steel production industry, supporting a shift towards more sustainable manufacturing practices. However, the implementation of hydrogen as a primary reducing agent in industrial settings is constrained by current technological limitations and the need for substantial infrastructural developments to support large-scale hydrogen production and utilization.

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Optimization of Hydrogen Utilization and Process Efficiency in the Direct Reduction of Iron Oxide Pellets: A Comprehensive Analysis of Processing Parameters and Pellet Composition

Perrone,

Cavaliere,

Sadeghi

et al. 2024

steel research int.

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The article deals with the H2 consumption for different processing conditions and the composition of the processed pellets during the direct reduction process. The experiments are carried out at 600–1300 °C, with gas pressures of 1–5 bar, gas flow rates of 1–5 L min−1, and basicity indices of 0 to 2.15. Pellets with different compositions of TiO2, Al2O3, CaO, and SiO2 are analyzed. The gas flow rate is crucial, with 0–10 L min−1 leading to an H2 consumption of 0–5.1 kg H2/kg pellet. The gas pressure (0–10 bar) increases the H2 consumption from 0 to 5.1 kg H2/kg pellet. Higher temperatures (600–1300 °C) reduce H2 consumption from 5.1 to 0 kg H2/kg pellet, most efficiently at 950–1050 °C, where it decreases from 0.22 to 0.10 kg H2/kg pellet. An increase in TiO2 content from 0% to 0.92% lowers H2 consumption from 0.22 to 0.10 kg H2/kg pellet, while a higher Fe content (61–67.5%) also reduces it. An increase in SiO2 content from 0% to 3% increases H2 consumption from 0 to 5.1 kg H2/kg pellet. Porosity structure influences H2 consumption, with the average pore size decreasing from 2.83 to 0.436 mm with increasing TiO2 content, suggesting that micropores increase H2 consumption and macropores decrease it.

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Kinetic analysis of iron ore powder reaction with hydrogen—carbon monoxide

Cited by 25 publications

References 27 publications

Editorial for special issue on hydrogen metallurgy

Editorial for special issue on hydrogen metallurgy

An Overview Analysis of Current Research Status in Iron Oxides Reduction by Hydrogen

Optimization of Hydrogen Utilization and Process Efficiency in the Direct Reduction of Iron Oxide Pellets: A Comprehensive Analysis of Processing Parameters and Pellet Composition

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