Exploring pyrolysis and reduction behaviour of high-sulphur petroleum coke for disposal of Zn-containing dust

Ironmaking & Steelmaking Processes Products and Applications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

High-sulphur petroleum coke (HSPC), a significant byproduct of refining, has limited applications except as fuel for combustion. This study aims to expand its utility by investigating efficacy reductant disposing Zn-containing dust, thereby substituting traditional coal-based reductants. The pyrolysis results showed that the gases generated from HSPC primarily comprised hydrogen gas (H 2 ), carbon monoxide (CO), methane and dioxide. H CO accounted above 90% total at 1200 °C. reduction reaction mechanism was elucidated thermodynamic calculations carbothermal experiments. At 800 °C, ZnFe O 4 is gradually decomposed into Fe 3 , FeO ZnO, completely reduced . 900–1000 iron oxides are basically Fe, ZnO also Zn. Above 1100 CaMgSiO slag phase due combination CaO, MgO SiO roasting product with metallic material obtained, sulphur removal rate reaches 58%. provides valuable insights clean efficient recovery reuse coke–coal, offering promising avenue sustainable resource management.

Language: Английский

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Efficient Recovery of Valuable Metal from Stainless Steel Dust and Copper Slag by Co-Reduction Processing Method

Journal of Sustainable Metallurgy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Language: Английский

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Mechanism and kinetics of microwave-enhanced disposal of Zn-bearing dust using petroleum coke

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116662 - 116662

Published: April 1, 2025

Language: Английский

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Clean treatment of zinc-bearing dust: zinc-iron separation and nano zinc oxide preparation based on low-temperature roasting and water leaching process

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133527 - 133527

Published: May 1, 2025

Language: Английский

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Roadmap for recycling practices and resource utilization in the iron and steelmaking industry: a case studies

Matériaux & Techniques, Journal Year: 2024, Volume and Issue: 112(5), P. 503 - 503

Published: Jan. 1, 2024

This paper aims at providing an overview of the ways for residue valorization in iron and steelmaking industry. The important role recycling as a cornerstone achieving cleaner resource-efficient potential is described. Several research results concerning metals metal oxides (scrap, scale), slags, dusts, process gases, water from are reviewed here, aiming to detect those gaps that still need implementation suggest approaches toward solutions. Through comprehensive evaluation, several possibilities provided incorporate effectively metallurgical processes bio-based or bio-derived carbon materials, namely biomass, biochar, biocoke, polymers waste plastics reduce dependence on fuel reducing agents fossil sources, therefore mitigating related environmental impact steel Eventually, this review highlights importance embracing circular economy (CE) principles steelmaking, along with considering opportunities industrial symbiosis (IS) exploring digitalization digital solutions practices.

Language: Английский

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A novel approach to enhance decrepitation temperature and reducibility of ultrafine iron ore concentrate pellets

Journal of Iron and Steel Research International, Journal Year: 2024, Volume and Issue: 31(11), P. 2622 - 2632

Published: July 24, 2024

Language: Английский

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Kinetic Study of Biomass Co-Disposal of Zinc-Bearing Dust and Chromium-Bearing Sludge

Journal of Sustainable Metallurgy, Journal Year: 2024, Volume and Issue: 10(4), P. 2020 - 2031

Published: Sept. 30, 2024

Language: Английский

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