Results 51 to 60 of about 56,023 (314)

Managing the process of underground coal gasification

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2023
Purpose. The research purpose is to determine the efficiency parameter of the coal gasification process based on the analysis of the composition of combustible gases (Н2, СН4, СО) and the producer gas calorific value, depending on the methods of ...
P. Saik, V. Lozynskyi, O. Anisimov, O. Akimov, A. Kozhantov, O. Mamaykin   +5 more
semanticscholar   +1 more source

Underground Gasification of Coal

Journal of the Fuel Society of Japan, 1965
Coal assumes an important role as energy souces along with hydraulic power in our country. In order to supply energy at low cost each coal mining company has tried to carry out the rationalization of industry in many respects.Hereafter it is necessary for us not only to promote the mechanized extraction of coal, but also to study positively the new ...
Hazime Nakamura, Shin Jrie
openaire   +2 more sources

Effect of Injection Flow Rate on Product Gas Quality in Underground Coal Gasification (UCG) Based on Laboratory Scale Experiment: Development of Co-Axial UCG System [PDF]

, 2017
Underground coal gasification (UCG) is a technique to recover coal energy without mining by converting coal into a valuable gas. Model UCG experiments on a laboratory scale were carried out under a low flow rate (6~12 L/min) and a high flow rate (15~30 L/
DEGUCHI Gota, HAMANAKA Akihiro, ITAKURA Ken-ichi, KODAMA Jun-ichi, SU Fa-qiang, TAKAHASHI Kazuhiro   +5 more
core   +2 more sources

A Review of Research on Advanced Control Methods for Underground Coal Gasification Processes

Energies, 2023
Underground coal gasification (UCG) is a clean coal mining technology without significant environmental impacts. This technology can also be used in deep, hard-to-reach seams or deposits affected by tectonic disturbances, where conventional mining is ...
J. Kačur, M. Laciak, M. Durdán, P. Flegner, Rebecca Frančáková   +4 more
semanticscholar   +1 more source

Recent Development on Underground Coal Gasification and Subsequent CO2 Storage [PDF]

, 2015
Underground coal gasification (UCG) is the in-situ conversion of deep underground coal to synthesis gas for heating, chemical manufacturing and power generation. UCG has been the subject of extensive pilot testing but technical and environmental concerns
Böckenholt, U., Goldstein, D., Johnson, J., Russo, J., Schulte-Mecklenbeck, M., Sullivan, N., Willemsen, M.   +6 more
core   +6 more sources

MODELING OF MATERIAL BALANCE FROM THE EXPERIMENTAL UCG

Acta Polytechnica, 2020
The underground coal gasification is a continually evolving technology, which converts coal to calorific gas. There are many important parameters in this technology, which are difficult to measure.
Milan Durdán, Ján Terpák, Ján Kačur, Marek Laciak, Patrik Flegner   +4 more
doaj   +1 more source

Characteristics of Geological Anomalies Shown on Seismic Time Sections

CT Lilun yu yingyong yanjiu
With the rapid development of three-dimensional (3D) seismic exploration technology in recent years, its application has demonstrated significant advantages in interpreting the form and structure of underground coal seams, particularly in identifying ...
Xiaobing GENG
doaj   +1 more source

Assessment of Combustion Cavern Geometry in Underground Coal Gasification Process with the Use of Borehole Ground-Penetrating Radar

Energies, 2023
In this study, the shape and size of a combustion cavity with a fracture zone in the gasified coal seam was determined with the use of control boreholes and a ground-penetrating radar (BGPR) test.
Z. Pilecki, Robert Hildebrandt, Krzysztof Krawiec, Elżbieta Pilecka, Zbigniew Lubosik, Tomasz Łątka   +5 more
semanticscholar   +1 more source

Experimental Studies of the Effect of Design and Technological Solutions on the Intensification of an Underground Coal Gasification Process

Energies, 2021
This paper represents the results of experimental studies of physical modeling of the underground coal gasification process in terms of implementation of design and technological solutions aimed at intensification of a gasification process of thin coal ...
Oleg Bazaluk, Vasyl Lozynskyi, Volodymyr Falshtynskyi, Pavlo Saik, Roman Dychkovskyi, Edgar Cabana   +5 more
doaj   +1 more source

An Overview of the Chinese UCG Program

Data Science Journal, 2007
Coal is the dominant source of energy in China, but about 50% of the coal resource is left underground unmined. Because of this, the "long-tunnel, large section, two-stage" Underground Coal Gasification (UCG) technology has been put forward, and the UCG ...
Yulan Li, Xinxing Liang, Jie Liang
doaj   +1 more source