A Study on Bio-Coke Production—The Influence of Bio-Components Addition on Coke-Making Blend Properties

Rejdak, Michał; Wojtaszek-Kalaitzidi, Małgorzata; Gałko, Grzegorz; Mertas, B.; Radko, Tomasz; Baron, Robert A.; Ksiazek, Michal Tomasz; Larsen, Sten Yngve; Sajdak, Marcin; Kalaitzidis, Stavros

doi:10.3390/en15186847

Cited by 10 publications

(3 citation statements)

References 46 publications

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“…The abovementioned can be explained as an increase in the proportional release of oxygen-containing groups during heating as it has been also noted by [71], [77], and features of the cellulose structure which does not lead to an additional effect on caking and shrinkage processes in the coal charge at the stages of the pre-plastic and plastic state.…”

Section: Figure 7 Roga Index Of the Initial Coal Without Cellulose Ad...mentioning

confidence: 74%

Study of cellulose additive effect on the caking properties of coal

Koveria¹,

Kieush²,

Usenko³

et al. 2023

Min. miner. depos.

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Purpose. The work aims to study the effect of cellulose on the caking properties of various types of coking coal used in coking blends. The change in caking abilities has been analyzed to achieve the aim using standard techniques. At the same time, the effect of biomass additives on the plastic properties of coal has been analyzed comprehensively; the optimal amount of additive for practical purposes has been determined. Methods. Multiple coal characteristics in the plastic stage have been studied using a dilatometric method, the enhanced swelling pressure method, the plastometric method, and the Roga index test. The first three methods make it possible to characterize the caking properties of coal; and the Roga index test characterizes its coking ability. Findings. It has been identified that the optimal amount of biomass additive to study the effect on the properties of coal in the plastic state is more than 5 wt. %. In the paper, experimental dependences of the 5 wt. % cellulose addition influence on the caking properties of four coal grades have been obtained. The results showed a slight decrease in caking properties in terms of swelling, swelling pressure, thickness of the plastic layer, and caking ability. Simultaneously, the most sensitive methods for assessing the effect of cellulose addition on the coal plastic properties are the dilatometric method as well as the enhanced method for the swelling pressure determination. Originality. A comprehensive study of the effect of pure cellulose as a component of lignocellulose biomass on the properties of different coal grades in the plastic state (i.e. caking prperteis) has been carried out. A slight change in the coal properties in the plastic state with adding 5 wt. % cellulose, decreasing caking properties, has been shown. An important, not previously reported, conclusion is that the cellulose additive does not have any noticeable effect on the physical properties of the coal charge owing to its loose structure. Practical implications. A slight change in the caking properties of coal has been established with the addition of 5 wt. % which is of practical importance for the preparation of coal blends, and the coke production in the cases of using additives of lignocellulosic biomass without losing its quality. Additionally, renewable additive use while obtaining fuels and reducing agents is an approach to mitigate the negative environmental impact.

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Section: Figure 7 Roga Index Of the Initial Coal Without Cellulose Ad...mentioning

confidence: 74%

Study of cellulose additive effect on the caking properties of coal

Koveria¹,

Kieush²,

Usenko³

et al. 2023

Min. miner. depos.

View full text Add to dashboard Cite

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“…The final properties of coke influence in the efficiency of metallurgical processes and the quality of produced steel. Therefore, understanding and controlling these properties are crucial to ensure that the coke meets the required technical parameters and maintains high-quality metallurgical products [19][20][21][22]. As the authors indicate, a high proportion of biomass-derived additives can adversely affect key quality parameters used to evaluate the suitability of coke in metallurgy, such as the Coke Reactivity Index (CRI) and the Coke Strength after Reaction (CSR).…”

Section: Industry Application Of Biocharmentioning

confidence: 99%

Comparison of Bio-Coke and Traditional Coke Production with Regard to the Technological Aspects and Carbon Footprint Considerations

Krupanek,

Gałko,

Sajdak

et al. 2024

Energies

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In a world facing the challenges of climate change, it is imperative to prioritize the search for sustainable technical solutions. This study focuses on evaluating the environmental impact of using bio-coke compared to traditional metallurgical coke, employing Life Cycle Assessment (LCA) as the evaluation tool. Bio-coke, produced from a blend of coking coals enriched with biomass, offers greater environmental potential than traditional coke due to a reduced share of non-renewable raw materials. The steel and coking industries are significant contributors to carbon dioxide emissions. LCA provides a comprehensive assessment of the environmental impact of bio-based additives, considering raw material deliveries, the coking process, application in metallurgy, and product end-of-life disposal. The analysis results indicate that the use of biomass additives leads to lower greenhouse gas emissions compared to coke production without bio-additives. Given the urgency of addressing global warming and the increasing demand for sustainable energy sources, this study’s findings can advocate for bio-coke as a more environmentally friendly alternative to traditional coke in the steel industry.

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“…Similar to the power sector, the metallurgy and cement industries are seeking ways to reduce greenhouse gas emissions. One of the possibilities is to substitute the classic coke used in metallurgy with bio-coke made entirely or partially of various biomass types [103,104]. Among them, animal-origin biomass seems promising, but nevertheless, is still not recognized enough.…”

Section: The Use Of Animal-origin Biomass In the Metallurgy And Cemen...mentioning

confidence: 99%

Significance and Challenges of Poultry Litter and Cattle Manure as Sustainable Fuels: A Review

Maj

2022

Energies

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Growing animal production results in a significant amount of waste, composed of manure, bedding, feed, feathers, etc., whose safe and cost-effective disposal becomes a troublesome challenge. The literature review points out that the higher heating value (HHV) of animal-origin waste reaches 19 MJ/kg (dry basis), which positions it as a promising renewable energy source. Various paths of energy recovery were investigated in the literature, but the thermal processes, particularly combustion and co-combustion, were indicated as the most effective from both technical and environmental points of view. The presented study reviews the fuel characteristics, possible combustion-related challenges, and ash disposal routes of the most popular animal-origin waste: poultry litter and cow (cattle) manure with a slight sight on piggery (swine) manure. When considering animal-origin feedstock as fuel, usually only animal species is given (poultry, cattle, etc.). However, according to the analyzed literature data, this is not sufficient information. Several more factors crucially influence the fuel and ash properties of animal waste and the most vital are: the housing system, type of bedding, and farming style. Animal litter is considered a “difficult” fuel, nevertheless, it does not always cause combustion-related problems. Some analyzed feedstock feature low chlorine concentrations and high ash melting temperatures, which makes them combustion-friendly.

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A Study on Bio-Coke Production—The Influence of Bio-Components Addition on Coke-Making Blend Properties

Cited by 10 publications

References 46 publications

Study of cellulose additive effect on the caking properties of coal

Study of cellulose additive effect on the caking properties of coal

Comparison of Bio-Coke and Traditional Coke Production with Regard to the Technological Aspects and Carbon Footprint Considerations

Significance and Challenges of Poultry Litter and Cattle Manure as Sustainable Fuels: A Review

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