Biomass metallurgy: A sustainable and green path to a carbon-neutral metallurgical industry

Wei, Rufei; Meng, Kangzheng; Long, Hongming; Xu, ChunbaoCharles

doi:10.1016/j.rser.2024.114475

Cited by 7 publications

(1 citation statement)

References 86 publications

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“…Among high-temperature procedures of copper slag processing aimed at valuable metal recovery, reduction processes with coke as a reducer are of the greatest importance. In addition, for several years, there have been attempts to apply alternative reducers, such as various types of biomass or carboniferous waste generated in the coal enrichment processes [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Determining the Reactivity of Selected Biomass Types Considering Their Application in Pyrometallurgical Processes of Metal Production

Findorak,

Pikna,

Matuła

et al. 2024

Materials

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In this paper, results of research on the reactivities of selected biomass types considering their application in pyrometallurgical processes of metal production are presented. Walnut shells, sunflower husk pellets and spent coffee grounds were selected as biomass materials. Their use as potential reducers in the process of metallurgical slag decopperisation is an innovative approach to this subject. The thermogravimetric findings show that all three tested biomass types are classified as highly reactive. The time to reach maximum reactivity ranges from 1.5 to 3 min and, the lowest value is recorded for the sample of spent coffee grounds. The sample hold time of two hours enables copper content reduction to approx. 1 wt% for practically all the reducers tested. A longer duration of liquid slag contact with the reducer results in a decreased copper content in the slag to a value below 1 wt%. Copper concentrations of 0.5 wt% and lower are observed with a hold time of 4 h. The preliminary results indicate that there is great potential for the use of this type of material in non-ferrous metallurgy, which may translate into replacing fossil raw materials and thus introducing the principles of a sustainable process in this case of metal production.

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Section: Introductionmentioning

confidence: 99%

Determining the Reactivity of Selected Biomass Types Considering Their Application in Pyrometallurgical Processes of Metal Production

Findorak,

Pikna,

Matuła

et al. 2024

Materials

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Progress Toward Biocarbon Utilization in Electric Arc Furnace Steelmaking: Current Status and Future Prospects

DiGiovanni,

Echterhof

2024

J. Sustain. Metall.

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Steel is an essential material in modern infrastructure and industry, but its production is associated with significant carbon dioxide emissions. Biocarbon utilization in electric arc furnace (EAF) steelmaking represents a promising pathway toward reducing the carbon footprint of steel production. This review draws new perspectives on the current state of biocarbon utilization in EAF steelmaking by collectively examining the literature from multiple scales of testing, from laboratory experiments to industrial trials. The scientific insights from each scale are defined and the results are collectively pooled to give a comprehensive understanding of biocarbon’s performance for EAF applications. Several recent progressions are identified along with critical limitations, such as biocarbon’s high reactivity or low density. However, solution pathways like agglomeration are established from the thorough understanding developed by this study. These insights aim to enhance the progression of biocarbon utilization in the EAF process, ultimately facilitating the development of more efficient and sustainable steelmaking. The proposed areas for future research, such as optimizing key biocarbon properties or improved injection systems, are expected to have significant impact on the next phase of biocarbon adoption. Graphical Abstract

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Formation and growth of metallic iron microparticle during carbothermic reduction of red mud with palm kernel shell charcoal

Setiawan,

Kawigraha,

Attaurrazaq

et al. 2024

Case Studies in Chemical and Environmental Engineering

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Biomass metallurgy: A sustainable and green path to a carbon-neutral metallurgical industry

Cited by 7 publications

References 86 publications

Determining the Reactivity of Selected Biomass Types Considering Their Application in Pyrometallurgical Processes of Metal Production

Determining the Reactivity of Selected Biomass Types Considering Their Application in Pyrometallurgical Processes of Metal Production

Progress Toward Biocarbon Utilization in Electric Arc Furnace Steelmaking: Current Status and Future Prospects

Formation and growth of metallic iron microparticle during carbothermic reduction of red mud with palm kernel shell charcoal

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