Quantifying the energy saving potential and environmental benefit of hydrogen-based steelmaking process: Status and future prospect

Li, Feng; Chu, Mansheng; Tang, Jue; Liu, Zhenggen; Zhao, Zichuan; Liu, Peijun; Yan, Ruijun

doi:10.1016/j.applthermaleng.2022.118489

Cited by 21 publications

(2 citation statements)

References 43 publications

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“…Abhinav et al created a Python-based material and energy flow model, finding that a short process of hydrogen-based direct reduction and electric arc furnaces can reduce carbon emissions from European Union (EU) steel manufacturing by more than 35% [25]. Li et al found that, when compared to the blast furnace-alkaline oxygen furnace process, the hydrogen-rich shaft furnace-electric furnace process can save energy by 39.79% and reduce carbon emissions by 45.42% [26]. Chen et al evaluated the direct reduction-iron-electric furnace by using CO 2 -CH 4 dry reforming technology, concluding that the technology can, compared to the blast furnace-converter, achieve 136 kg CO 2 reduction per ton of steel [27].…”

Section: Literature Reviewmentioning

confidence: 99%

Research of the Impact of Hydrogen Metallurgy Technology on the Reduction of the Chinese Steel Industry’s Carbon Dioxide Emissions

Wan,

Li,

Han

et al. 2024

Sustainability

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The steel industry, which relies heavily on primary energy, is one of the industries with the highest CO2 emissions in China. It is urgent for the industry to identify ways to embark on the path to “green steel”. Hydrogen metallurgy technology uses hydrogen as a reducing agent, and its use is an important way to reduce CO2 emissions from long-term steelmaking and ensure the green and sustainable development of the steel industry. Previous research has demonstrated the feasibility and emission reduction effects of hydrogen metallurgy technology; however, further research is needed to dynamically analyze the overall impact of the large-scale development of hydrogen metallurgy technology on future CO2 emissions from the steel industry. This article selects the integrated MARKAL-EFOM system (TIMES) model as its analysis model, constructs a China steel industry hydrogen metallurgy model (TIMES-CSHM), and analyzes the resulting impact of hydrogen metallurgy technology on CO2 emissions. The results indicate that in the business-as-usual scenario (BAU scenario), applying hydrogen metallurgy technology in the period from 2020 to 2050 is expected to reduce emissions by 203 million tons, and make an average 39.85% contribution to reducing the steel industry’s CO2 emissions. In the carbon emission reduction scenario, applying hydrogen metallurgy technology in the period from 2020 to 2050 is expected to reduce emissions by 353 million tons, contributing an average of 41.32% to steel industry CO2 reduction. This study provides an assessment of how hydrogen metallurgy can reduce CO2 emissions in the steel industry, and also provides a reference for the development of hydrogen metallurgy technology.

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Section: Literature Reviewmentioning

confidence: 99%

Research of the Impact of Hydrogen Metallurgy Technology on the Reduction of the Chinese Steel Industry’s Carbon Dioxide Emissions

Wan,

Li,

Han

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…Focusing on the decarbonization target of the steel industry [4], a more promising application of hydrogen is acting as a reducing agent in the production of H 2 -DRI [5], [6]. With the improvement of both the hydrogen supply system [7]- [9] and the H 2 -based direct reduction [10]- [12], H 2 -based steelmaking has promoted a fossil fuel-free pathway for the steel industry [13]- [15]. By integrating high-energy-consuming industries with RESs, it hopes to absorb more RESs and effectively reduce industrial carbon emissions [16].…”

Section: Literature Reviewmentioning

confidence: 99%

Multi-Period Optimization of Hydrogen-Based Steelmaking System: A Rolling-Horizon Approach

Sheng,

Wang,

Si1

et al. 2024

Preprint

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Under the "Dual-Carbon" targets, hydrogen production powered by renewable energy and hydrogen direct reduction offer approaches to integrating a high proportion of renewable energy and catalyzing the steel industry's transition towards a low-carbon footprint. The hydrogen-based steelmaking system (HBSS) presents a multi-energy interaction, encompassing processes from hydrogen production and ironmaking to the final steelmaking processes. Additionally, the high investment and operational expenses necessitate that decisionmakers prioritize enhancing the system's economic efficiency to ensure its long-term viability and effectiveness. In this study, we first introduced a multiperiod optimization model for HBSS, aiming to reduce the levelized cost of steel (LCOS) from both the investment and operational aspects. Then, the rollinghorizon approach has been used to overcome computational infeasibility for large mixed-integer linear programming problems by solving the problem periodically, including additional information from proximately following periods. We further compared it with the single-period and forward-looking approaches, indicating that the optimal result of LCOS varied from $406 to $520 for the different approaches. It proves that the rolling-horizon approach can lead to an economicsbetter solution than the single-period approach and is only a few percent away from the forward-looking approach.

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Sticking Behavior of Burdens During Reduction Process in Gas‐Based Shaft Furnaces

Zhao,

Tang,

Wang

et al. 2023

steel research int.

Self Cite

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Gas‐based shaft furnaces (SFs) have garnered considerable attention because of their low CO2 emissions. The sticking behavior of their burden material influences the smooth operation of SFs. In this study, the effects of the reduction degree, temperature, and atmosphere on the sticking behavior of pellets are studied thoroughly under typical reduction conditions. The results demonstrate that the pellets will stick with each other as the reduction degree increases, the main phase of pellets at the maximum sticking index (SI) is iron, and the interconnection between iron whiskers results in the bonding phenomenon of pellets. The pellets exhibit a low SI at a relatively low reduction temperature. As the reduction temperature increases, the pellets stick, which is caused by thermal expansion and the large number of iron whiskers. With an increase in the proportion of H2 in the reducing gas, the iron particles become smaller, and the contact area between the particles decreases, effectively reducing the SI of the pellets. In general, choosing a reasonable reduction temperature and increasing the proportion of H2 in the reducing gas are helpful in controlling pellet sticking.

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Quantifying the energy saving potential and environmental benefit of hydrogen-based steelmaking process: Status and future prospect

Cited by 21 publications

References 43 publications

Research of the Impact of Hydrogen Metallurgy Technology on the Reduction of the Chinese Steel Industry’s Carbon Dioxide Emissions

Research of the Impact of Hydrogen Metallurgy Technology on the Reduction of the Chinese Steel Industry’s Carbon Dioxide Emissions

Multi-Period Optimization of Hydrogen-Based Steelmaking System: A Rolling-Horizon Approach

Sticking Behavior of Burdens During Reduction Process in Gas‐Based Shaft Furnaces

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