Predictcion of Next-Generation Ironmaking Process Based on Oxygen Blast Furnace Suitable for CO&lt;sub&gt;2&lt;/sub&gt; Mitigation and Energy Flexibility

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

doi:10.2355/isijinternational.isijint-2015-264

Cited by 30 publications

(32 citation statements)

References 29 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%

“…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%

“…20, as shown in Table 2. 25) Cases O-10 to O-13 were calculated using the same values for shaft efficiency, thermal reserve zone temperature and raw material conditions as in Case O-00, and the natural gas and PCI rates were changed to examine the effects of the carbon contents of the injectants on the carbon input to the steel works.…”

Section: Calculation Conditions and Concept Of Advanced Oxygen Blast mentioning

confidence: 99%

“…20. 25) The model elements consist of the sintering machine, coke oven and blast furnace and also include the power plant, hot stoves and oxygen plant. In addition to these facilities, this model includes various equipment such as the blower of the blast furnace and the facilities in downstream processes.…”

Section: )mentioning

confidence: 99%

See 4 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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Section: Progress Of Blast Furnacementioning

confidence: 99%

Section: Evolution Of Blast Furnace Process Toward Reductant Flexibilmentioning

confidence: 99%

Section: Progress Of Blast Furnacementioning

confidence: 99%

Section: Calculation Conditions and Concept Of Advanced Oxygen Blast mentioning

confidence: 99%

Section: )mentioning

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

Self Cite

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Multiple Criteria in a Top Gas Recycling Blast Furnace Optimized through ak-Optimality-Based Genetic Algorithm

Mohanty

Mitra

Saxén

et al. 2015

steel research int.

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A steel plant flow sheet containing a top gas recycling blast furnace is simulated and subjected to multi-objective optimization through an evolutionary approach. A recently proposed k-optimality criterion is used, which allows optimizing a large number of objectives in an evolutionary way, which is difficult to do by other methods. A number of promising optimum results, showing the optimum tradeoffs between several cost factors are identified and analyzed. The results appear to be very significant in the context of CO 2 reduction challenges faced by the steel industries today.

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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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Predictcion of Next-Generation Ironmaking Process Based on Oxygen Blast Furnace Suitable for CO<sub>2</sub> Mitigation and Energy Flexibility

Cited by 30 publications

References 29 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

Multiple Criteria in a Top Gas Recycling Blast Furnace Optimized through ak-Optimality-Based Genetic Algorithm

A Review on Explorations of the Oxygen Blast Furnace Process

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