Perspective on Progressive Development of Oxygen Blast Furnace for Energy Saving

Takahashi, Koichi; Nouchi, Taihei; Sato, Michitaka; Ariyama, Tatsuro

doi:10.2355/isijinternational.isijint-2015-196

Cited by 31 publications

(17 citation statements)

References 18 publications

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“…24,25) This concept enables a reduction in the carbon input to the ironmaking process, energy saving and energy supply to the downstream processes. Owing to the high productivity of the oxygen blast furnace, the furnace profile can be reduced, and this makes it possible to use low grade burden materials.…”

Section: Progress Of Blast Furnacementioning

confidence: 99%

“…According to a study based on a DEM simulation by Takahashi et al, 24) in an oxygen blast furnace with a downsized profile, the maximum compressive stress on the burden is approximately 20-30% smaller than in the conventional blast furnace. This stress reduction means the physical properties of the burden materials can be relaxed, and this relaxation of the burden strength requirements in the oxygen blast furnace will lead to substantial energy savings in the upstream sintering and coking processes.…”

Section: Progressive Development To Next-generation Blast Furnacementioning

confidence: 99%

“…These processes indicate new aspects of innovation in the blast furnace process and suggest the basic concept for a next-generation blast furnace. 24,25) Considering the current situation, greater importance should be placed on the energy self-sufficiency of the steel works when pursuing the diversification and flexibility of reducing agents, and on mitigation of CO 2 emissions by innovative ironmaking processes.…”

Section: Evolution Of Blast Furnace Process Toward Reductant Flexibilmentioning

confidence: 99%

“…It is estimated that the advanced oxygen blast furnace with optimized hydrogenous injectants as described later will have a coke rate of around 200 kg/thm. 24,25) To decrease CO 2 emissions, special emphasis should be placed on the selection of injectants appropriate for achieving low carbon based on the cold oxygen injection as shown in Fig. 2. …”

Section: Progress Of Blast Furnacementioning

confidence: 99%

See 3 more Smart Citations

Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works

Ariyama

Sato²,

Nouchi³

et al. 2016

ISIJ International

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Section: Progress Of Blast Furnacementioning

confidence: 99%

Section: Progressive Development To Next-generation Blast Furnacementioning

confidence: 99%

Section: Evolution Of Blast Furnace Process Toward Reductant Flexibilmentioning

confidence: 99%

Section: Progress Of Blast Furnacementioning

confidence: 99%

See 2 more Smart Citations

Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works

Ariyama

Sato²,

Nouchi³

et al. 2016

ISIJ International

Self Cite

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“…(Online version in color.) Typical comparison of oxygen blast furnace and conventional blast furnace33) . (Online version in color.)…”

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confidence: 99%

Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry

Ariyama

2019

Tetsu-to-Hagane

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Synopsis :Global warming has been regarded as a crucial issue in every industry. Since long term global goal was set on the basis of Paris Agreement, a considerable evolution toward CO 2 mitigation in 2050 is desired even in steel industry. Until now, many various technology developments were carried out in the ironmaking area; however, the innovative progress beyond the past progressive developments is required to attain the long-term goal in 2050. This review focuses on the current technology development on CO 2 mitigation to date and the design of an ambitious ironmaking process for the future. In particular, the directions for low carbon and decarbonization are discussed from the viewpoints of technological aspects and the comprehensive consistency with sustainability in steel industry. Moreover, the perspectives on CCU (CO 2 Capture and Utilization) and hydrogen ironmaking process based on the renewable energy aiming for carbon direct avoidance are described.

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A Review on Explorations of the Oxygen Blast Furnace Process

Zhang

Dai

et al. 2020

steel research int.

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The oxygen blast furnace (OBF) process has been extensively studied theoretically because of the potentials of promising energy conservation and CO2 emission reduction. Herein, investigations of the OBF process are reviewed and some suggestions for its future development are presented. The main findings can be condensed into the following: static and dynamic models of the OBF should be revised to considering the newest theoretical findings in the thermodynamics and kinetics involved as well as the particular limitations of the technology. Models focusing on energy demand and emissions should be further developed and applied to enhance the design for increased efficiency and sustainability of the complicated OBF system. It will be challenging to operate the full OBF process with top gas recycling (TGR). The development of mathematical models focusing on the practical operation is therefore warranted and would provide useful tools for tackling control problems and difficulties that will arise in forthcoming industrial trials. Considering these potential challenges, a medium oxygen‐enriched blast furnace with TGR as a forerunner is suggested because its operation conditions show greater resemblance with those of the traditional blast furnace. This furthermore provides a path of transition to the use of the full OBF in industrial scale.

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Perspective on Progressive Development of Oxygen Blast Furnace for Energy Saving

Cited by 31 publications

References 18 publications

Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works

Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works

Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry

A Review on Explorations of the Oxygen Blast Furnace Process

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