Effect of Types of Carbonaceous Material and CaO Addition on Reduction Behavior of Pre-reduced Iron Ore–Carbon Composite

Murakami, Taichi; Shinomiya, Hiroto; Maruoka, Daisuke; Kasai, Eiki

doi:10.2355/isijinternational.isijint-2018-725

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…Another interesting fact about non-coking coal remains the fact that it has wider applications in many iron processing reactors or furnaces, compared to that metallurgical coke whose traditional strategy for application is found in the blast furnace. Iron production processes such as FASTMET [46], HISMELT [47], MIDREX [34], COREX [48], Microwave ovens [49], Rotary kiln [50], HIsarna [51], etc. have been used utilized in the works of literature as sponge iron ironmaking processes reactors.…”

Section: Iron Ore Reduction-smelting Process Using Non-coking Coals/c...mentioning

confidence: 99%

Recent Trends in the Technologies of the Direct Reduction and Smelting Process of Iron Ore/Iron Oxide in the Extraction of Iron and Steelmaking

Ogbezode¹,

Ajide²,

Oluwole³

et al. 2023

Iron Ores and Iron Oxides - New Perspectives

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The blast furnace and direct reduction processes have been the major iron production routes for the past few decades, but the challenges of maintaining the iron and steel-making processes are enormous. The challenges, such as cumbersome production routes, scarcity of metallurgical coke, high energy demands, and a high cost of production, cannot be overemphasized. This study provides a systematic overview of the different ironmaking routes, and the challenges involved. Subsequently, strategic ways towards improving the production efficiency and product quality of metallic iron produced in the recent iron processing routes were suggested. The study reiterated that the non-contact direct reduction and reduction-smelting routes are the faster ironmaking and steelmaking processes that can utilise alternative energy sources efficiently with little or no carbon deposition. Both processes also have promising features based on their requirements in terms of fewer energy demands, time-saving, cost-effectiveness, and operational efficiency. Thus, in today's iron and steelmaking processes, non-contact direct reduction and reduction-smelting processes remain viable alternative iron production routes.

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Section: Iron Ore Reduction-smelting Process Using Non-coking Coals/c...mentioning

confidence: 99%

Recent Trends in the Technologies of the Direct Reduction and Smelting Process of Iron Ore/Iron Oxide in the Extraction of Iron and Steelmaking

Ogbezode¹,

Ajide²,

Oluwole³

et al. 2023

Iron Ores and Iron Oxides - New Perspectives

View full text Add to dashboard Cite

show abstract

“…Shingo ISHIHARA, 1) * Ko-ichiro OHNO, 2) Hirokazu KONISHI, 3) Takashi WATANABE, 4) Shungo NATSUI, 1) Hiroshi NOGAMI 1) and Junya KANO 1) cohesive zone. 7,8) Although, it is difficult to say the phenomena in the cohesive zone have been sufficiently clarified yet due to the complexity.…”

Section: Prediction Of Softening Behavior Of Simulant Sinter Ore By Adem-sph Modelmentioning

confidence: 99%

“…The softening behavior of ore is affected by various factors such as chemical compositions, reducing gas composition, temperature, physical properties and so on. To understand the cohesive zone, several experiments have been performed to study the high temperature properties of burdens [1][2][3][4][5][6] and the gas flow effect on the liquid flow in the…”

Section: Introductionmentioning

confidence: 99%

Prediction of Softening Behavior of Simulant Sinter Ore by ADEM-SPH Model

et al. 2020

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Softening and melting phenomena of burdens in the cohesive zone in the blast furnace are factors that cause the deterioration of gas permeability. Numerical examinations to predict the softening behavior of burdens in the packed bed were performed in this study. In order to represent the softening characteristics of the simulant sinter ore, the simulation of a single pellet load softening test was carried out. The strength properties of the pellets were evaluated by the shrinkage degree in the load softening test.Shrinkage degree of pellets with different basicity and pre-reduction ratio were attempted to reproduce. To represent the softening behavior of the pellet, ADEM (Advanced Distinct Element Method) SPH (Smoothed Particle Hydrodynamics) coupling model was applied. Softening and shrinkage could be represented by decreasing the joint spring coefficient while the pellet was loaded. The relationship between the joint spring coefficient and the temperature was determined to compare the shrinkage degree obtained in the experiment and the simulation. The determined joint spring coefficient was used to predict the softening behavior in the load softening test of a packed bed. The simulation results of the shrinkage degree curve showed good agreement with the experimental results. It was indicated that the softening behavior in the cohesive zone could be predicted by this calculation method.

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Mechanism of thermal compressive strength evolution of carbon-bearing iron ore pellet without binders during reduction process

Wang,

Zhu

et al. 2024

J. Iron Steel Res. Int.

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Effect of Types of Carbonaceous Material and CaO Addition on Reduction Behavior of Pre-reduced Iron Ore–Carbon Composite

Cited by 7 publications

References 16 publications

Recent Trends in the Technologies of the Direct Reduction and Smelting Process of Iron Ore/Iron Oxide in the Extraction of Iron and Steelmaking

Recent Trends in the Technologies of the Direct Reduction and Smelting Process of Iron Ore/Iron Oxide in the Extraction of Iron and Steelmaking

Prediction of Softening Behavior of Simulant Sinter Ore by ADEM-SPH Model

Mechanism of thermal compressive strength evolution of carbon-bearing iron ore pellet without binders during reduction process

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