Results 181 to 190 of about 1,378 (225)
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Underground coal gasification (UCG): An analysis of gas diffusion and sorption phenomena
Fuel, 2015Abstract This article describes the results of measurements of the gas transport phenomena in coal and strata samples. The samples were taken from the surroundings of an underground georeactor in the “Barbara” Experimental Mine before and after an in situ underground coal gasification experiment.
Magdalena Ludwik-Pardała +1 more
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Kinetic modeling of Indian lignites pyrolysis in the context of underground coal gasification (UCG)
Fuel, 2021Abstract Pyrolysis is an important step in combustion and gasification of any solid fuel. In this work, we have studied the kinetics of the pyrolysis of three Indian lignite samples via thermogravimetric experiments and mathematical modeling. Applicability of various kinetic models viz. the single global reaction model, the consecutive reaction model
Ramesh Naidu Mandapati +1 more
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Energy & Fuels, 2016
During underground coal gasification (UCG) operations, evaluation of coal gasification cavity evolution and precise control of the underground reactor are important for efficient gasification. It is also essential to estimate the energy recovery of a UCG system and the whole gasification process to ensure an effective combustion and gasification rate ...
Fa-qiang Su +5 more
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During underground coal gasification (UCG) operations, evaluation of coal gasification cavity evolution and precise control of the underground reactor are important for efficient gasification. It is also essential to estimate the energy recovery of a UCG system and the whole gasification process to ensure an effective combustion and gasification rate ...
Fa-qiang Su +5 more
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Greenhouse gas abatement costs of hydrogen production from underground coal gasification
Energy, 2015The demand for hydrogen is likely to increase in the next decade to satisfy the projected growth of the bitumen upgrading industry in western Canada. This paper presents greenhouse gas (GHG) abatement costs and the GHG abatement potential in producing hydrogen from underground coal gasification (UCG) along with carbon capture and sequestration (CCS ...
Verma, Aman +2 more
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Chapter 4. Underground Coal Gasification (UCG) with Carbon Capture and Storage (CCS)
2010Underground Coal Gasification (UCG), taken on its own, offers the prospect of increasing the world's usable coal reserves by a factor of at least three,1 and doing so in a cost-effective manner with the added benefit of avoiding the risk to life and limb that accompanies deep coal mining.
Dermot Roddy, Gerardo González
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Evaluation of coal resources for underground gasification in Poland. Selection of possible UCG sites
Fuel, 2017Abstract Several opinions are presented that underground coal gasification (UCG) may be used at large scale in coal seams of low thickness, at a great depth and for unrecovered coal in abandoned mines. Geological features of coal deposits limits wide application of UCG.
Marek Nieć +3 more
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Energy, 2016
Abstract In this article, the results from a pilot-scale, underground coal gasification (UCG) experiment conducted in an operating coal mine “Wieczorek” were presented. The 60-day gasification trial demonstrated that through the appropriate selection of the test site and by applying all safety standards essential for the coal mining industry, UCG in ...
Piotr Mocek +5 more
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Abstract In this article, the results from a pilot-scale, underground coal gasification (UCG) experiment conducted in an operating coal mine “Wieczorek” were presented. The 60-day gasification trial demonstrated that through the appropriate selection of the test site and by applying all safety standards essential for the coal mining industry, UCG in ...
Piotr Mocek +5 more
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Fuel, 2012
Abstract The UCG (underground coal gasification) trial was carried out at the Experimental Mine “Barbara” within the RFCS Project HUGE (2007–2010). The georeactor was placed in the coal seam 310 at the depth of 30 m. During the period of 15 days about 22 tons of hard coal was gasified with the average consumption rate of 62 kg/h.
M. Wiatowski +9 more
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Abstract The UCG (underground coal gasification) trial was carried out at the Experimental Mine “Barbara” within the RFCS Project HUGE (2007–2010). The georeactor was placed in the coal seam 310 at the depth of 30 m. During the period of 15 days about 22 tons of hard coal was gasified with the average consumption rate of 62 kg/h.
M. Wiatowski +9 more
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A Study of Underground Coal Gasification (UCG) Wastewater and Sludge
2015Underground coal gasification (UCG) is a non-conventional method of extracting gas from coal. The primary advantage of UCG is that it recovers gas from uneconomical or unminable coal, potentially increasing the value of the world’s coal reserves by an estimated 70%; for this reason, UCG has been implemented at sites around the world.
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Fuel, 2017
Abstract This paper presents the results of six tar sample analyses obtained during 60 days of an underground coal gasification (UCG) trial in the “Wieczorek” mine in Poland. The tars were sampled periodically during coal gasification by four different reagents: oxygen enriched air, air, a mixture of air and carbon dioxide, and air with nitrogen. The
Marian Wiatowski +2 more
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Abstract This paper presents the results of six tar sample analyses obtained during 60 days of an underground coal gasification (UCG) trial in the “Wieczorek” mine in Poland. The tars were sampled periodically during coal gasification by four different reagents: oxygen enriched air, air, a mixture of air and carbon dioxide, and air with nitrogen. The
Marian Wiatowski +2 more
openaire +1 more source