Hydrogen generation characteristics of steel slag-steam high temperature reaction in terms of particle size

Li, Peng; Chen, Yuxi; Li, Xiangyang; Yan, Bingji; Chen, Dong; Guo, Hongwei

doi:10.1016/j.ijhydene.2020.04.205

Cited by 6 publications

(2 citation statements)

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“…Steel slag can be used as a heat source, a catalyst and a reactant in the process of hydrogen production. [ 16 ] The composition of steel slag is similar to that of natural minerals, and it can stably fix CO 2 in carbonate form. On the one hand, steel slag can directly fix carbon by contacting with CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

Zhou,

Li,

Meng

et al. 2024

Carbon Neutralization

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Steel slag is a waste discharged from the iron and steel smelting process, which has the characteristics of large output, high temperature, complex chemical composition and poor stability. The application of steel slag in hydrogen production and CO2 fixation is of great significance for reducing energy consumption, obtaining renewable energy and fixing CO2 in the air. In this paper, the research progress of high‐temperature sensible heat of steel slag used for hydrogen production and CO2 fixation at medium and low temperature is introduced, the reaction mechanism of different hydrogen production methods and the treatment path and direction of high‐efficiency hydrogen production in the future are deeply analyzed, and the steel slag used for CO2 fixation is discussed and summarized from the theory, effect and treatment mode of CO2 fixation. In the future, the research on the economic benefits of hydrogen production and CO2 fixation from steel slag is a major focus, which can achieve economic benefits while utilizing steel slag resources.

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Section: Introductionmentioning

confidence: 99%

Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

Zhou,

Li,

Meng

et al. 2024

Carbon Neutralization

View full text Add to dashboard Cite

show abstract

“…[7] Similar controversies existed in other gas-solid systems. [8][9][10] In liquid-solid systems, reducing the limestone size from 55 μm to 10 μm shortened conversion-time due to the larger specific surface area and pore volume. [11] However, further size reduction had limited or even negative effects on the reaction efficiency.…”

Section: Introductionmentioning

confidence: 99%

Critical Granular Size Impact on Softening and Melting Behaviors of Sinters: From the Viewpoints of the Competition between <i>In-situ</i> Liquid Generation and Holdup

Ma,

Deng

et al. 2023

ISIJ Int.

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Unraveling the critical granular size in various chemical processes involving granular materials, such as blast furnace ironmaking process, holds significant importance in optimizing production efficiency. This study focuses on investigating the critical granular size by employing six monosized sinter packed beds, which are reduced at elevated temperature up to 1400°C. Quantitative analysis reveals two distinct behaviors, inconsistent shrinkages between 1200-1350°C and sizedependent rates of pressure drops approaching their maximum values. These results highlight the presence of a critical granular size between 2 mm and 4 mm under present experimental conditions. To elucidate these findings, a hypothesis based on the competition between the active role of liquid generation and the passive role of liquid holdup is proposed, and the strategies for utilizing the small particles below the critical size in binary-sized beds are given full discussions. This work aims to provide laboratory-scale experimental insights into the critical granular size effect and will shed light on exploring the critical granular size in industrial-scale processes involving granular materials in the future.

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Understanding reactions between water and steelmaking slags: Iron distribution, hydrogen generation, and phase transformations

Guo

Yan

et al. 2022

International Journal of Hydrogen Energy

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Hydrogen generation characteristics of steel slag-steam high temperature reaction in terms of particle size

Cited by 6 publications

References 46 publications

Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

Critical Granular Size Impact on Softening and Melting Behaviors of Sinters: From the Viewpoints of the Competition between <i>In-situ</i> Liquid Generation and Holdup

Understanding reactions between water and steelmaking slags: Iron distribution, hydrogen generation, and phase transformations

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Hydrogen generation characteristics of steel slag-steam high temperature reaction in terms of particle size

Cited by 6 publications

References 46 publications

Research progress of hydrogen production and CO2 fixation in molten slag cooling process

Research progress of hydrogen production and CO2 fixation in molten slag cooling process

Critical Granular Size Impact on Softening and Melting Behaviors of Sinters: From the Viewpoints of the Competition between <i>In-situ</i> Liquid Generation and Holdup

Understanding reactions between water and steelmaking slags: Iron distribution, hydrogen generation, and phase transformations

Contact Info

Product

Resources

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Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

Research progress of hydrogen production and CO₂ fixation in molten slag cooling process