The Economics of Coking Coal Mining: A Fossil Fuel Still Needed for Steel Production

Duda, Adam; Valverde, Gregorio Fidalgo

doi:10.3390/en14227682

Cited by 13 publications

(9 citation statements)

References 12 publications

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“…For the measurement of apparent density (ρ app ), a GeoPyc 1350 density analyser from Micromeritics was used. Total porosity (P) was obtained via the Formula (1)-(ρ t -real density of particle, g/cm 3 ; ρ app -apparent density of particle g/cm 3 ):…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

“…Coke is currently an important material for the global economy. In addition to iron ore, it is an crucial raw material in the integrated steel production process (BF-BOF), which currently accounts for over 70% of the world's steel production [1][2][3]. It is estimated that about 0.6 tons of coke is used to produce 1 ton of crude steel, which corresponds to about 0.77 tons of coking coal used to produce coke [4].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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Due to global warming, technologies reducing CO2 emissions in the metallurgical industry are being sought. One possibility is to use bio-coke as a substitute for classic coke made of 100% fossil coal. Bio-coke can be produced on the basis of coal with the addition of substances of biomass origin. Blends for the production of bio-coke should have appropriate coke-making properties to ensure the appropriate quality of bio-coke. The article presents the results of the research on the influence of the addition (up to 20%) of bio-components of different origins to the coke blend on its coke-making properties, i.e., Gieseler Fluidity, Arnu—Audibert Dilatation and Roga Index. The bio-components used in the research were raw and thermally processed waste biomass of different origins (forestry: beech and alder woodchips; sawmill: pine sawdust; and the food industry: hazelnut shells and olive kernels) and commercial charcoal. Studies have shown that both the amount of additive and the type of additive affect the obtained coking properties. There was a decrease in fluidity, dilatation and Roga Index values, with more favorable results obtained for the addition of carbonized biomass and for additives with a higher apparent density. A regressive mathematical model on the influence of the share of the additive and its properties (oxygen content and apparent density) on the percentage decrease in fluidity was also developed.

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Section: Thermogravimetric Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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“…The development of innovative technologies of bituminous coal excavation is still important, especially in the light of increasingly challenging mining conditions 1 – 3 . The studies of cutting rocks using a high velocity jet of water (i.e.…”

Section: Introductionmentioning

confidence: 99%

In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine

Dubiński

Jura

Makówka

et al. 2023

Sci Rep

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The hydro-mining technology is considered as a promising method of bituminous coal excavation. The paper presents the results of the in-situ experimental campaign and modelling of hydro-cutting technology application. The proposed innovative technology was tested in terms of the effects of the distance between the outlet of water from the nozzle and a sidewall, pressure of the water jet, as well as the type of a nozzle on hydro-mining effectiveness. The hydro-cutting tests of coal seam performed in the Experimental Mine “Barbara” in Poland proved that the increase in water pressure in the range 20–40 MPa only slightly affects the coal face structure, while high pressure, of 80–100 MPa, has a significant impact on a coal face structure. The experimental results also showed the major effects of operating time as well as the distance of the water jet on the effectiveness of coal face mining.

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“…Energies 2023, 16, 3639 2 of 31 A significant portion of fossil fuels (hard and brown coal, oil-bearing sand) is mined using surface methods. For example, A. Duda, G. Fidalgo Valverde wrote: "Coking coal has been on the European list of critical raw materials since 2014 due to its high economic importance and high supply risk" [3]. Therefore, the energy transition with a characteristic increase in the share of renewable energy, in which Industry 4.0 technologies are widely used, cannot be separated from the synchronous modernization of mining [4].…”

Section: Introduction 1the Role Of Surface Mining Digitalization In E...mentioning

confidence: 99%

Development of Surface Mining 4.0 in Terms of Technological Shock in Energy Transition: A Review

Zhironkin

Taran

2023

Energies

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The expansion of end-to-end Industry 4.0 technologies in various industries has caused a technological shock in the mineral resource sector, wherein itsdigital maturity is lower than in the manufacturing sector. As a result of the shock, the productivity and profitability of raw materials extraction has begun to lag behind the industries of its deep processing, which, in the conditions of volatile raw materials markets, can provoke sectoral crises. The diffusion of Industry 4.0 technologies in the mining sector (Mining 4.0) can prevent a technological shock if they are implemented in all segments, including quarrying (Surface Mining 4.0). The Surface Mining 4.0 technological platform would connect the advanced achievements of the Fourth Industrial Revolution (end-to-end digital artificial intelligence technologies, cyber-physical systems and unmanned production with traditional geotechnology) without canceling them, but instead bringing them to a new level of productivity, resource consumption, and environmental friendliness. In the future, the development of Surface Mining 4.0 will provide a response to the technological shock associated with the acceleration of the digital modernization of the mining sector and the increase in labor productivity, which are reducing the operating costs of raw materials extraction. In this regard, the given review is an attempt to analyze the surface mining digital transformation over the course of the diffusion of Industry 4.0 technologies covered in scientific publications. The authors tried to show the core and frontiers of Surface Mining 4.0 development to determine the production, economic, and social effect of replacing humans with digital and cyber-physical systems in the processes of mineral extraction. Particular attention was paid to the review of research on the role of Surface Mining 4.0 in achieving sustainable development goals.

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The Economics of Coking Coal Mining: A Fossil Fuel Still Needed for Steel Production

Cited by 13 publications

References 12 publications

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

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

In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine

Development of Surface Mining 4.0 in Terms of Technological Shock in Energy Transition: A Review

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