Development the concept of borehole underground coal gasification technology in Ukraine

2015 ◽  
pp. 91-95 ◽  
Author(s):  
R Dychkovskyi ◽  
V Falshtynskyi ◽  
V Lozynskyi ◽  
P Saik
Keyword(s):  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Gasification Technology

Underground Сoal Gasification Efficiency in Areas of High Faulting Frequency

2017 ◽  
Vol 25 ◽  
pp. 118-127
Author(s):  
Vasyl Lozynskyi
Keyword(s):  
Coal Seam ◽  
Coal Gasification ◽  
Analytical Calculation ◽  
Underground Coal Gasification ◽  
Practical Application ◽  
Gasification Efficiency ◽  
Rational Order ◽  
Coal Reserves ◽  
Gasification Technology ◽  
Generator Gas

The purpose of this paper is substantiating of efficiency during application of borehole underground coal gasification technology based on target coal seam geology. Comprehensive methodology that included analytical calculation is implemented in the work. To determine the efficiency of coal seam gasification in faulting areas, an economic calculation method was developed. The obtained conditions of coal seam allow to provide rational order of mine workings. Conclusions regarding the implementation of the offered method are made on the basis of undertaken investigations. The obtained results with sufficient accuracy in practical application will allow consume coal reserves in the faulting zones using environmentally friendly conversion technology to obtain power and chemical generator gas, chemicals and heat.

scholarly journals Underground coal gasification technology impact on coal reserves in Colombia

2013 ◽  
Vol 22 (35) ◽  
pp. 9
Author(s):  
John William Rosso Murillo
Keyword(s):  
Energy Production ◽  
Coal Gasification ◽  
Underground Coal Gasification ◽  
World Energy ◽  
The World ◽  
Coal Reserves ◽  
Gasification Technology ◽  
Available Volume

<p>In situ coal gasification technology (Underground Coal Gasification–UCG–) is an alternative to the traditional exploitation, due to it allows to reach the today’s inaccessible coal reserves’ recovery, to conventional mining technologies. In this article I answer the question on how the today’s reserves available volume, can be increased, given the possibility to exploit further and better the same resources. Mining is an important wealth resource in Colombia as a contributor to the national GDP. According with the Energy Ministry (Ministerio de Minas y Energía) [1] mining has been around 5% of total GDP in the last years. This is a significant fact due to the existence of a considerable volume of reserves not accounted for (proved reserves at year 2010 were 6.700 million of tons. Source: INGEOMINAS and UPME), and the coal future role’s prospect, in the world energy production.</p>

scholarly journals The Usage of UCG Technology as Alternative to Reach Low-Carbon Energy

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3718
Author(s):  
Stefan Zelenak ◽  
Erika Skvarekova ◽  
Andrea Senova ◽  
Gabriel Wittenberger
Keyword(s):  
Coal Gasification ◽  
Process Management ◽  
Low Carbon ◽  
The European Union ◽  
Underground Coal Gasification ◽  
Management Measures ◽  
Underground Generator ◽  
Low Carbon Energy ◽  
Gasification Technology

Countries of the European Union have stated transition to carbon-neutral economy until the year of 2050. Countries with a higher share of coal-fired power generation currently have no solution to end their combustion and use clean, emission-free energy immediately. The solution to this problem in the energy industry appears to be the increased use of natural gas, which significantly reduces CO2 emissions. In this article, we investigated the possibility of using coal in situ, using UCG (underground coal gasification) technology. We focused on verified geological, hydrogeological, and tectonic information about the selected brown coal deposit in Slovakia. This information has been assessed in research projects in recent years at the Technical University. From the abovementioned information, possible adverse factors were evaluated. These factors affect the rock environment around the underground generator by UCG activity. As part of the process management, measures were proposed to eliminate the occurrence of pollution and adverse effects on the environment. In the final phase of the UCG technology, we proposed to carry out, in the boreholes and in the generator cavity, water flushing and subsequent grouting. The proposed are suitable materials for solidification and stabilization. Results of this article´s solutions are crucial in the case of usage of this so-called clean technology, not only in Slovakia but also worldwide.

scholarly journals Innovative aspects of underground coal gasification technology in mine conditions

2018 ◽  
Vol 12 (2) ◽  
pp. 68-75 ◽  
Author(s):  
V Falshtynskyi ◽  
◽  
P Saik ◽  
V Lozynskyi ◽  
R Dychkovskyi ◽  
...  
Keyword(s):  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Gasification Technology

Basic Aspects Of Productivity Of Underground Coal Gasification Process

2015 ◽  
Vol 60 (2) ◽  
pp. 443-453 ◽  
Author(s):  
Józef Dubiński ◽  
Marian Turek
Keyword(s):  
Coal Seam ◽  
Coal Mine ◽  
Coal Gasification ◽  
Industrial Scale ◽  
Hard Coal ◽  
Underground Coal Gasification ◽  
Coal Seams ◽  
Gasification Process ◽  
Mining Coal ◽  
Gasification Technology

Abstract An analysis of conditions which enable attaining possibly highest productivity of industrial scale underground coal gasification technology is presented. The analysis was prepared basing on results obtained during an experimental gasification process conducted in workings of an active hard coal mine. Basic aspects determining application and productivity of the technology concern both general conditions, referring to the hard coal seam being gasified, and practical issues, which need to be considered in coal mine conditions. To present them, the technology of underground coal gasification and still commonly used classical longwall method of mining coal seams are compared.

scholarly journals Studying the features of the implementation of underground coal gasification technology in terms of Lvivvuhillia SE

2020 ◽  
Vol 168 ◽  
pp. 00036
Author(s):  
Pavlo Saik ◽  
Roman Dychkovskyi ◽  
Vasyl Lozynskyi ◽  
Volodymyr Falshtynskyi ◽  
Edgar Cabana ◽  
...  
Keyword(s):  
Coal Gasification ◽  
Coal Extraction ◽  
Underground Coal Gasification ◽  
Gas Generator ◽  
Mining Operations ◽  
Extraction Technology ◽  
Gas Combustion ◽  
Current State ◽  
Coal Reserves ◽  
Gasification Technology

Topical issues of the possibilities for changes in the coal extraction technology in terms of Stepova mine of Lvivvuhillia SE have been highlighted. Analysis of the current state of mining operations has been carried out. Design solutions as for introduction of the coal gasification technology in the life cycle of the mining enterprise has been proposed on the basis of the analytical, experimental, and industrial studies; the technology has been described. Percentage ratio of the output of combustion generator gases (Н2, СО, СН4) has been identified; gas combustion value and efficiency of the process depending on certain changes in the blowing mixture composition supplied into the underground gas generator have been determined. Heat balance of the process of underground coal gasification has been studied making it possible to evaluate its energy balance. The algorithm to determine coal reserves in a mine pillar to be gasified has been proposed. Indices of the output of combustion generator gases from the gasification column have been defined. The relevant issues have been studied of ensuring the possibility of underground coal gasification technology when uncovering the mining extracted area for the underground gas generator operation.

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