Results 51 to 60 of about 272 (156)

Early Ideas in Underground Coal Gasification and Their Evolution

open access: yesEnergies, 2009
This article follows the development of early UCG (underground coal gasification) ideas. Historical facts are discussed mainly from the technological perspective and early experiments in UCG are analyzed.
Alexander Y. Klimenko
doaj   +1 more source

Key technologies for low-carbon modern coal-based energy

open access: yesMeitan xuebao
Coal energy has made a significant contribution to the development of human industrialization, but coal energy is faced with the major problem of high carbon emissions. Modern coal-based energy is a new path to crack the contradiction between coal energy
Shirong GE   +4 more
doaj   +1 more source

Modelling of Gas Flow in the Underground Coal Gasification Process and its Interactions with the Rock Environment

open access: yesJournal of Sustainable Mining, 2013
The main goal of this study was the analysis of gas flow in the underground coal gasification process and interactions with the surrounding rock mass. The article is a discussion of the assumptions for the geometric model and for the numerical method for
Tomasz Janoszek   +4 more
doaj   +1 more source

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

open access: yesEnergies, 2020
Underground coal gasification (UCG) is an in situ conversion technique that enables the production of high-calorific synthesis gas from resources that are economically not minable by conventional methods. A broad range of end-use options is available for
Christopher Otto, Thomas Kempka
doaj   +1 more source

Determination of Kinetic Parameters of Coal Pyrolysis to Simulate the Process of Underground Coal Gasification (UCG)

open access: yesJournal of Sustainable Mining, 2014
Purpose The aim of the research presented in this paper was to determine the values of the kinetic parameters of coal pyrolysis from two areas of the planned experiment, UCG, i.e. the Barbara Experimental Mine of the Central Mining Institute and the Wieczorek Mine. Methods The thermal decomposition of coal analysis used the thermogravimetric technique.
openaire   +2 more sources

The monitoring and control of underground coal gasification in laboratory conditions [PDF]

open access: yesActa Montanistica Slovaca, 2008
A number of coal gasification technologies are currently available or under various stages of development. One technology “Underground coal gasification (UCG)” is receiving renewed interest around the world.
Ján Kačúr, Karol Kostúr
doaj  

Thermo-Mechanical Simulations of Rock Behavior in Underground Coal Gasification Show Negligible Impact of Temperature-Dependent Parameters on Permeability Changes

open access: yesEnergies, 2015
A coupled thermo-mechanical model has been developed to assess permeability changes in the vicinity of an underground coal gasification (UCG) reactor resulting from excavation and thermo-mechanical effects.
Christopher Otto, Thomas Kempka
doaj   +1 more source

Rock massif observation from underground coal gasification point of view [PDF]

open access: yesMetalurgija, 2009
The Underground coal gasification (UCG) of the coal seams is determined by suitable geological structure of the area. The assumption of the qualitative changes of the rock massif can be also enabled by application of geophysical methods (electric ...
T. Sasvári, J. Durove, B. Pandula
doaj  

Analysis of Risk Factors for Underground Coal Gasification

open access: yesManagement Systems in Production Engineering, 2019
The purpose of this article is to determine the environmental impacts of underground gasification on the population and to analyze the risk of underground coal gasification (UCG) activities using selected risk assessment methods.
Škvareková Erika   +3 more
doaj   +1 more source

Underground Coal Gasification as a Strategy to Improve Energy Economy of Iran [PDF]

open access: yesPizhūhishnāmah-i Iqtiṣād-i Inirzhī-i Īrān, 2015
Enjoying the twelfth largest coal reserve in the world, only one percent of Iran’s energy consumption basket is supplied by coal. Now, Iran’s energy economy is under the influence of natural oil and gas resources, causing other more profitable energy ...
Jafar Haghighat   +2 more
doaj   +2 more sources

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