Abstract
Underground coal gasification (UCG) is a highly efficient new type of coal mining technology with broad future prospects. In order to study the cavity extension formation in the early ignition stage of UCG, a block coal scale UCG simulation experiment was carried out. The results show that after the ignition, the temperature above ignition point rose fastest, and the coal combustion interface and high temperature area moved toward to the above of ignition point, while the temperature of the left and right sides of ignition point rose a little slowly. According to the results of dissected block coal, it is indicated that the extension scale in the vertical direction was significantly larger than other directions; the combustion cavity form was an irregular rectangle like a pear. The results of this experiment revealed the cavity extension process from ignition of UCG channels to the formation of cavity, which provided a foundation for the study of extension characteristics of UCG channel in the entire UCG process.
Issue Section:
Fuel Combustion
References
1.
Zhu
, Y.
, Somasundaram
, S.
, and Kemp
, J. W.
, 2010
, “Energy and Exergy Analysis of Gasifier-Based Coal-to-Fuel Systems
,” ASME J. Energy Resour. Technol.
, 132
(2
), p. 021008
. 10.1115/1.40015722.
Perkins
, G.
, 2018
, “Underground Coal Gasification—Part I: Field Demonstrations and Process Performance
,” Prog. Energy Combust. Sci.
, 67
, pp. 158
–187
. 10.1016/j.pecs.2018.02.0043.
Perkins
, G.
, 2018
, “Underground Coal Gasification—Part II: Fundamental Phenomena and Modeling
,” Prog. Energy Combust. Sci.
, 67
, pp. 234
–274
. 10.1016/j.pecs.2018.03.0024.
Harloff
, G. J.
, 1983
, “Underground Coal Gasification Research
,” ASME J. Energy Resour. Technol.
, 105
(2
), pp. 165
–169
. 10.1115/1.32308975.
Martin
, J. W.
, McClung
, J. D.
, Liberatore
, A. J.
, Strickland
, L. D.
, Zielinski
, R. E.
, Seabaugh
, P. W.
, and Agarwal
, A. K.
, 1981
, “Field Results From a Linked Vertical Well UCG Test in Deep, Thin-Seam Bituminous Coal
,” ASME J. Energy Resour. Technol.
, 103
(4
), pp. 277
–284
. 10.1115/1.32308526.
Xin
, L.
, Cheng
, W.
, Xie
, J.
, Liu
, W.
, and Xu
, M.
, 2019
, “Theoretical Research on Heat Transfer Law During Underground Coal Gasification Channel Extension Process
,” Int. J. Heat Mass Transfer
, 142
, p. 118409
. 10.1016/j.ijheatmasstransfer.2019.07.0597.
Xin
, L.
, Wang
, Z.-T.
, Wang
, G.
, Nie
, W.
, Zhou
, G.
, Cheng
, W.-M.
, and Xie
, J.
, 2017
, “Technological Aspects for Underground Coal Gasification in Steeply Inclined Thin Coal Seams at Zhongliangshan Coal Mine in China
,” Fuel
, 191
, pp. 486
–494
. 10.1016/j.fuel.2016.11.1028.
Shrivastava
, A.
, and Prabu
, V.
, 2016
, “Thermodynamic Analysis of Solar Energy Integrated Underground Coal Gasification in the Context of Cleaner Fossil Power Generation
,” Energy Convers. Manage.
, 110
, pp. 67
–77
. 10.1016/j.enconman.2015.12.0099.
Wiatowski
, M.
, Kapusta
, K.
, Świądrowski
, J.
, Cybulski
, K.
, Ludwik-Pardała
, M.
, Grabowski
, J.
, and Stańczyk
, K.
, 2015
, “Technological Aspects of Underground Coal Gasification in the Experimental “Barbara” Mine
,” Fuel
, 159
, pp. 454
–462
. 10.1016/j.fuel.2015.07.00110.
Burchart-Korol
, D.
, Krawczyk
, P.
, Czaplicka-Kolarz
, K.
, and Smoliński
, A.
, 2016
, “Eco-Efficiency of Underground Coal Gasification (UCG) for Electricity Production
,” Fuel
, 173
, pp. 239
–246
. 10.1016/j.fuel.2016.01.01911.
Tola
, V.
, Cau
, G.
, Ferrara
, F.
, and Pettinau
, A.
, 2016
, “CO2 Emissions Reduction From Coal-Fired Power Generation: A Techno-Economic Comparison
,” ASME J. Energy Resour. Technol.
, 138
(6
), p. 061602
. 10.1115/1.403454712.
Hoeftberger
, D.
, and Karl
, J.
, 2016
, “The Indirectly Heated Carbonate Looping Process for CO2 Capture–A Concept With Heat Pipe Heat Exchanger
,” ASME J. Energy Resour. Technol.
, 138
(4
), p. 042211
. 10.1115/1.403330213.
Vellini
, M.
, and Tonziello
, J.
, 2010
, “Hydrogen Use in an Urban District: Energy and Environmental Comparisons
,” ASME J. Energy Resour. Technol.
, 132
(4
), p. 042601
. 10.1115/1.400303214.
Verma
, A.
, and Kumar
, A.
, 2015
, “Life Cycle Assessment of Hydrogen Production From Underground Coal Gasification
,” Appl. Energy
, 147
, pp. 556
–568
. 10.1016/j.apenergy.2015.03.00915.
Wiatowski
, M.
, Stańczyk
, K.
, Świądrowski
, J.
, Kapusta
, K.
, Cybulski
, K.
, Krause
, E.
, Grabowski
, J.
, Rogut
, J.
, Howaniec
, N.
, and Smoliński
, A.
, 2012
, “Semi-Technical Underground Coal Gasification (UCG) Using the Shaft Method in Experimental Mine “Barbara”
,” Fuel
, 99
, pp. 170
–179
. 10.1016/j.fuel.2012.04.01716.
Perkins
, G.
, Du Toit
, E.
, Koning
, B.
, and Ulbrich
, A.
, 2013
, “Unconventional Oil Production From Underground Coal Gasification and Gas to Liquids Technologies
,” Asia Pacific Unconventional Resources Conference and Exhibition 2013: Delivering Abundant Energy for a Sustainable Future
, Brisbane
, Nov. 11–13
, Society of Petroleum Engineers
, pp. 281
–296
.17.
Daggupati
, S.
, Mandapati
, R. N.
, Mahajani
, S. M.
, Ganesh
, A.
, Pal
, A. K.
, Sharma
, R. K.
, and Aghalayam
, P.
, 2011
, “Compartment Modeling for Flow Characterization of Underground Coal Gasification Cavity
,” Ind. Eng. Chem. Res.
, 50
(1
), pp. 277
–290
. 10.1021/ie101307k18.
Khadse
, A. N.
, Qayyumi
, M.
, Mahajani
, S. M.
, and Aghalayam
, P.
, 2006
, “Reactor Model for the Underground Coal Gasification (UCG) Channel
,” Int. J. Chem. Reactor Eng.
, 4
(Compendex
), pp. 1
–27
. 10.2202/1542-6580.135119.
Blinderman
, M. S.
, Saulov
, D. N.
, and Klimenko
, A. Y.
, 2008
, “Forward and Reverse Combustion Linking in Underground Coal Gasification
,” Energy
, 33
(3
), pp. 446
–454
. 10.1016/j.energy.2007.10.00420.
Chen
, L.
, Hou
, C. H.
, Chen
, J. S.
, and Xu
, J. T.
, 2011
, “A Back Analysis of the Temperature Field in the Combustion Volume Space During Underground Coal Gasification
,” Min. Sci. Technol. China
, 21
(4
), pp. 581
–585
. 10.1016/j.mstc.2011.06.01821.
Sarraf
, A.
, Mmbaga
, J. P.
, Gupta
, and Hayes
, R. E.
, 2011
, “Modeling Cavity Growth During Underground Coal Gasification
,” Proceedings of the 2011 COMOL Conference
, Boston, MA
, pp. 1
–5
.22.
Liu
, X.
, Guo
, G.
, and Li
, H.
, 2019
, “Study on the Propagation Law of Temperature Field in Surrounding Rock of Underground Coal Gasification (UCG) Combustion Cavity Based on Dynamic Thermal Parameters
,” Results Phys.
, 12
, pp. 1956
–1963
. 10.1016/j.rinp.2019.02.00623.
Javed
, S. B.
, Uppal
, A. A.
, Bhatti
, A. I.
, and Samar
, R.
, 2019
, “Prediction and Parametric Analysis of Cavity Growth for the Underground Coal Gasification Project Thar
,” Energy.
, 172
, pp. 1277
–1290
. 10.1016/j.energy.2019.02.00524.
Liu
, J.
, 2014
, “Research on the Expansion of Coal Underground Gasification and Combustion Zone Stability
,” Master
, China University of Mining and Technology
, Xuzhou
.25.
Strugała-Wilczek
, A.
, and Stańczyk
, K.
, 2016
, “Leaching Behaviour of Metals From Post-Underground Coal Gasification Cavity Residues in Water Differing in Mineralization
,” Fuel
, 173
, pp. 106
–114
. 10.1016/j.fuel.2016.01.04626.
Samdani
, G.
, Aghalayam
, P.
, Ganesh
, A.
, Sapru
, R. K.
, Lohar
, B. L.
, and Mahajani
, S.
, 2016
, “A Process Model for Underground Coal Gasification—Part-I: Cavity Growth
,” Fuel
, 181
, pp. 690
–703
. 10.1016/j.fuel.2016.05.02027.
Suponik
, T.
, and Lutynski
, M.
, 2013
, “In-Situ Treatment of Groundwater Contaminated With Underground Coal Gasification Products
,” Arch. Min. Sci.
, 58
(4
), pp. 1263
–1278
. 10.2478/amsc-2013-008728.
Liu
, S.-Q.
, Li
, J.-G.
, Mei
, M.
, and Dong
, D.-L.
, 2007
, “Groundwater Pollution From Underground Coal Gasification
,” J. China Univ. Min. Technol.
, 17
(4
), pp. 467
–472
. 10.1016/S1006-1266(07)60127-829.
Liu
, S.
, Niu
, M.
, Yan
, Y.
, Jin
, X.
, He
, Y.
, Gao
, B.
, Wang
, Z.
, and Li
, J.
, 2018
, “Research on Radial Expansion Detection of Coal Underground Gasification Gasification Face
,” J. China Coal Soc.
, 43
(7
), pp. 2044
–2051
(in Chinese)
.30.
Abdel-Hadi
, E. A. A.
, and Hsu
, T. R.
, 1987
, “Computer Modeling of Fixed Bed Underground Coal Gasification Using the Permeation Method
,” ASME J. Energy Resour. Technol.
, 109
(1
), pp. 11
–20
. 10.1115/1.323131631.
Jowkar
, A.
, Sereshki
, F.
, and Najafi
, M.
, 2018
, “A New Model for Evaluation of Cavity Shape and Volume During Underground Coal Gasification Process
,” Energy
, 148
, pp. 756
–765
. 10.1016/j.energy.2018.01.18832.
Prabu
, V.
, and Jayanti
, S.
, 2011
, “Simulation of Cavity Formation in Underground Coal Gasification Using Bore Hole Combustion Experiments
,” Energy
, 36
(10
), pp. 5854
–5864
. 10.1016/j.energy.2011.08.03733.
Najafi
, M.
, Jalali
, S. M. E.
, KhaloKakaie
, R.
, and Forouhandeh
, F.
, 2015
, “Prediction of Cavity Growth Rate During Underground Coal Gasification Using Multiple Regression Analysis
,” Int. J. Coal Sci. Technol.
, 2
(4
), pp. 318
–324
. 10.1007/s40789-015-0095-934.
Daggupati
, S.
, Mandapati
, R. N.
, Mahajani
, S. M.
, Ganesh
, A.
, Mathur
, D. K.
, Sharma
, R. K.
, and Aghalayam
, P.
, 2010
, “Laboratory Studies on Combustion Cavity Growth in Lignite Coal Blocks in the Context of Underground Coal Gasification
,” Energy
, 35
(6
), pp. 2374
–2386
. 10.1016/j.energy.2010.02.01535.
Li
, Q.
, Yao
, Y.
, Sun
, W.
, and Li
, Z.
, 2008
, “Effect of High Temperature on Cement Mortar Strength and Mechanism Analysis
,” J. Build. Mater.
, 11
(6
), pp. 699
–703
(in Chinese).36.
Feng
, J.
, 2009
, “Experimental Study on Degradation and Damage Process of Cement-Based Materials at High Temperature and Microscopic View
,” Doctor
, China University of Mining and Technology
, Beijing
.37.
Chen
, Q.
, Guo
, Q.
, and Yu
, L.
, 2007
, “Model and Experimental Study on Coal Seam Expansion in Underground Coal Gasification and Combustion Area
,” J. Shandong Jianzhu Univ.
, 22
(6
), pp. 490
–495
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