scholarly journals Measurement of the flow properties and capillary pressure relationships of certain coals pertaining to underground coal gasification. Quarterly report, March--May 1977

1977 ◽  
Author(s):  
P Fulton ◽  
A Reznik
Keyword(s):  
Capillary Pressure ◽  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Flow Properties

ACTIVATION OF UNDERGROUND COAL GASIFICATION WITH THE CONSIDERATION OF THE MODE OF THE UNDERGROUND GAS GENERATOR

2020 ◽  
Author(s):  
V Falshtynskyi ◽  
M Lozynska ◽  
D Lozynska
Keyword(s):  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Gas Generator

Cold Flow Simulation in Underground Coal Gasification (UCG) Cavities

2014 ◽  
Vol 1 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Dipankar Chatterjee ◽  
◽  
Satish Gupta ◽  
Chebolu Aravind ◽  
Rakesh Roshan
Keyword(s):  
Coal Gasification ◽  
Flow Simulation ◽  
Underground Coal Gasification ◽  
Cold Flow

scholarly journals Changes in properties of tar obtained during underground coal gasification process

2021 ◽  
Author(s):  
Marian Wiatowski ◽  
Roksana Muzyka ◽  
Krzysztof Kapusta ◽  
Maciej Chrubasik
Keyword(s):  
Coal Gasification ◽  
Coal Tar ◽  
Liquid Product ◽  
Coke Oven ◽  
Underground Coal Gasification ◽  
Gasification Process ◽  
Dominant Component ◽  
Process Gas ◽  
High Volatility ◽  
Product Separator

AbstractIn this study, the composition of tars collected during a six-day underground coal gasification (UCG) test at the experimental mine ‘Barbara’ in Poland in 2013 was examined. During the test, tar samples were taken every day from the liquid product separator and analysed by the methods used for testing properties of typical coke oven (coal) tar. The obtained results were compared with each other and with the data for coal tar. As gasification progressed, a decreasing trend in the water content and an increasing trend in the ash content were observed. The tars tested were characterized by large changes in the residue after coking and content of parts insoluble in toluene and by smaller fluctuations in the content of parts insoluble in quinoline. All tested samples were characterized by very high distillation losses, while for samples starting from the third day of gasification, a clear decrease in losses was visible. A chromatographic analysis showed that there were no major differences in composition between the tested tars and that none of the tar had a dominant component such as naphthalene in coal tar. The content of polycyclic aromatic hydrocarbons (PAHs) in UCG tars is several times lower than that in coal tar. No light monoaromatic hydrocarbons (benzene, toluene, ethylbenzene and xylenes—BTEX) were found in the analysed tars, which results from the fact that these compounds, due to their high volatility, did not separate from the process gas in the liquid product separator.

Modelling of the underground coal gasification process at Thulin on the basis of thermodynamic equilibria and isotopic measurements

Fuel ◽  
1990 ◽  
Vol 69 (5) ◽  
pp. 624-632 ◽  
Author(s):  
A DUFAUX ◽  
B GAVEAU ◽  
R LETOLLE ◽  
M MOSTADE ◽  
M NOEL ◽  
...  
Keyword(s):  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Gasification Process ◽  
Isotopic Measurements

scholarly journals Techno-Economic Comparison of Onshore and Offshore Underground Coal Gasification End-Product Competitiveness

Energies ◽  
2017 ◽  
Vol 10 (10) ◽  
pp. 1643 ◽  
Author(s):  
Natalie Nakaten ◽  
Thomas Kempka
Keyword(s):  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Economic Comparison

Control oriented modeling and optimization of one dimensional packed bed model of underground coal gasification

2014 ◽  
Vol 24 (1) ◽  
pp. 269-277 ◽  
Author(s):  
Ali Arshad Uppal ◽  
Aamer Iqbal Bhatti ◽  
Erum Aamir ◽  
Raza Samar ◽  
Shahid Ahmed Khan
Keyword(s):  
Coal Gasification ◽  
Packed Bed ◽  
Underground Coal Gasification ◽  
One Dimensional ◽  
Modeling And Optimization
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