Results 21 to 30 of about 717 (182)

Determination of the Technological Parameters of Borehole Underground Coal Gasification for Thin Coal Seams

open access: yesJournal of Sustainable Mining, 2013
In this article the characteristics of the criteria of borehole underground coal gasification for thin coal seams are defined. The thermal and material balance calculations for coal seam gasification processes are also explained. The construction, method
Volodymyr S. Falshtynskyi   +3 more
doaj   +1 more source

CFD Simulation of Temperature Variation in Carboniferous Rock Strata During UCG

open access: yesJournal of Sustainable Mining, 2013
The numerical simulation was based on the computational fluid dynamics formalism in order to identify the change of temperature in rock strata during underground coal gasification (UCG).
Tomasz Janoszek   +2 more
doaj   +1 more source

Underground Gasification of Coal

open access: yesJournal 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 ...
Nakamura, Hazime, Jrie, Shin
openaire   +2 more sources

Development of a multi-field coupled numerical simulation program for underground coal gasification and multi-field evolution laws

open access: yesMeitan xuebao, 2023
A numerical simulation procedure and method for underground coal gasification under the action of multi-field coupling has been developed, and the multi-field coupled thermal-force-chemical-displacement calculations are carried out simultaneously based ...
Qinghe ZHANG, Xiaorui WANG, Liang YUAN
doaj   +1 more source

MODELING OF MATERIAL BALANCE FROM THE EXPERIMENTAL UCG

open access: yesActa 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   +4 more
doaj   +1 more source

Characteristics of Geological Anomalies Shown on Seismic Time Sections

open access: yesCT 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

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

open access: yesEnergies, 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   +5 more
doaj   +1 more source

Deployment of Underground Coal Gasification in India [PDF]

open access: yesCurrent Science, 2017
Globally, the sheen of coal-based energy production is slowly wearing, with few exceptions of developing novel technologies that aid in coal gasification and gas clean-up. Underground coal gasification (UCG) is one such tool that can be used for extracting energy contained in otherwise inaccessible reserves.
Singan, Akshay, Ranade, Vivek V.
openaire   +1 more source

Sensitivity analysis and stochastic optimization of levelized cost of hydrogen production through methane pyrolysis

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 6, Page 3052-3067, June 2026.
Abstract Hydrogen plays a crucial role across multiple industrial sectors and is increasingly recognized as a clean energy carrier with significant potential in decarbonization efforts. Methane pyrolysis (MP), particularly using molten metal catalysts, offers a promising pathway for hydrogen production with low CO2 emissions.
Adrian Paredes Bozzo, Zukui Li
wiley   +1 more source

An Overview of the Chinese UCG Program

open access: yesData 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

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