The globalization of the world coal market – contradictions and trends

Sribna, Yevheniia; Trokhymets, Оlena; Nosatov, Ihor; Kriukova, Iryna

doi:10.1051/e3sconf/201912301044

Cited by 20 publications

(12 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unfortunately, professional reorientation of miners is rather a complex and long-term process. It results in the increased social tension in mining regions [34,35]. In increasing frequency, we face a problem of human consciousness manipulation with the help of modern Information Technology); moreover, instability and dissatisfaction of certain population layers may also be used to solve certain political problems.…”

Section: Development Of Joint Technologies For the Geoenergy Usage Based On Gas Hydrates Transformationmentioning

confidence: 99%

Gas hydrates technologies in the joint concept of geoenergy usage

et al. 2021

View full text Add to dashboard Cite

The paper represents the analysis, which has helped to establish the usage of gas hydrate technologies in the methane conversion. This gas could be obtained in different ways. Possibilities and sources for the gas obtaining have been demonstrated. Use of other environmentally friendly sources to support operation in such systems in terms of joint energy complex has been considered. The necessary kinetic connections to provide operational sustainability of all the constituents have been given. The approach helps evaluate quantitatively the priority of its physicochemical transformations to obtain gas hydrates artificially. It is possible to transport methane at considerable distances when it is solidified. Actually, in this case there is no necessity to build costly compressor stations and pipelines for its transportation to consumers. The approach is extremely important for mining regions as it helps prolong the operating period and working out of the abandoned and off-balance coal reserves. In this case, it is proposed to apply special gasification technologies tending to maximum methane recovery. The proposed solutions give the possibility to define the trends of our further research. They will be highlighted in the following authors’ studies.

show abstract

Section: Development Of Joint Technologies For the Geoenergy Usage Based On Gas Hydrates Transformationmentioning

confidence: 99%

Gas hydrates technologies in the joint concept of geoenergy usage

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The synergistic approach is based on the possibility of cooperation in complex systems, and it comparatively better describes the phenomena and events which take place in the context of globalization [33,34]. The use of synergistic approach is extremely important in the format of prospective activity of single-industry cities.…”

Section: Literature Reviewmentioning

confidence: 99%

Synergistic approach as an innovative basis for obtaining a natural gas substitute

et al. 2021

View full text Add to dashboard Cite

This paper studies the key problems of mining enterprises activity, which is mainly based on monofunctionality. A synergistic approach is described, which is a constituent basis for perspective performance of coal mines. The possibilities for profile reorientation of the coal mine operation as an enterprise for obtaining a natural gas substitute are analysed. The design peculiarities of a laboratory setup for studying the coal gasification processes (carbonaceous feed, various types of waste, etc.) are described that will form new approaches to implementation of the pilot units for producing the natural gas substitutes on the territory of coal mining enterprises, and combine them into a single mine technological chain. The developed setup, aimed to study the gasification processes, makes it possible to substantiate and determine the parameters of the carbonaceous feed gasification technology for obtaining the end product as a natural gas substitute.

show abstract

“…Most of the Ukrainian TPPs are equipped with everything necessary for energy generation using the G grade (gas) coal, which indicates the priority of this type of coal for society and the economy. Despite the current priority of generating electricity from renewable sources, the share of coal in the global energy balance remains significant -36% [7]- [10] and, according to ex-perts [11]- [13], it will occupy this key position for a long period of time. Development of alternative energy sources is also considered in the future [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Petlovanyi¹,

Malashkevych²,

Sai³

et al. 2020

Min. miner. depos.

View full text Add to dashboard Cite

Purpose. Study the movement of waste rock flows in the coal mine technological system and determine the balance of rocks and underground cavities formation from the perspective of the current mining operations development in order to assess the possibility of leaving the rock in the underground area. Methods. Based on the rank order of the Western Donbass mines, a coal mine has been chosen as the object of research in terms of maximum output and ash content. An algorithm is proposed for analytical studies of determining the rock outcrop in the course of stope, drifting and repair operations, as well as the prospective volumes of underground cavities for placing the formed waste rocks per a calendar year. The algorithm is based on the actual state of mining operations and the indicators of the stope and drifting faces of the mine, as well as the achieved modern mining-engineering parameters of the coal seams mining. Findings. It has been revealed that the main supply of waste rocks to the surface occurs as a result of stope operations with rock undercut -39% and underground mine workings -33%. It is proposed to differentiate all waste rock outcropped after mining operations into 2 categories: difficult to dispose of and prospective for disposal. It has been found that underground cavities have enormous potential for stockpiling of all waste rocks, the volume of which is by 2.8-4.8 times higher than the rock volume. It has been revealed that the most rational balance of waste rocks and cavities for leaving the rock in the mine is formed along the С 10 t seam. It has been determined that the full-fledged placement of rocks is limited by the scheduling peculiarities of mining the reserves along the seams, which are made for the complete cave-in technology of coal mining. Originality. For the first time, for one of the Western Donbass mines, the balance of formed waste rocks and potential underground cavities, dynamically changing in time and space, has been determined. Practical implications. The results obtained are useful for engineering new spatial planning solutions for the optimal development of mining operations with the maximum possible rocks stockpiling in the underground area of mines.

show abstract

The globalization of the world coal market – contradictions and trends

Cited by 20 publications

References 10 publications

Gas hydrates technologies in the joint concept of geoenergy usage

Gas hydrates technologies in the joint concept of geoenergy usage

Synergistic approach as an innovative basis for obtaining a natural gas substitute

Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Contact Info

Product

Resources

About