Innovative Aspects of Underground Coal Gasification Technology in Mine Conditions
V. Falshtynskyi1, P. Saik1, V. Lozynskyi1, R. Dychkovskyi1, M. Petlovanyi1
1National Mining University, Dnipro, Ukraine
Min. miner. depos. 2018, 12(2):68-75
Full text (PDF)
Purpose.Development of innovative approaches in technological and technical solutions improvement for coal seam gasification.
Methods. Carrying-out of native and world experience in the coal reserves development by underground gasification technology analysis, analytical studies on the heat and mass balance gasification process parameters determining and determination of the rock massif stress-deformed state around the gas gasifiers, and its technical and economic indicators operation.
Findings. The analytical calculations of the rocks stress-deformed state for the Western Donbas mines conditions have revealed that the maximum length of the gasification pillar should not be more than 580 m. The innovative technological schemes of gas gasifiers sites preparation work are proposed in two constructions: with roses and drill injected blast activators. The energy indicators of the gas gasifiers work, the period of release into the gasification mode during reverse operations and fuel gases discharge during different combustion face advance and the injected blast composition are determined. Introduction of gas gasifiers’ constructions with drill injected blast activators are recommended for the numerous advantages.
Originality. The dependence of the gasification pillar length change on the technical and economic parameters of the gasification station operation was established; the dependence of the gasification operation on the gasification mode and exhaust gases discharge, depending on the injected blast composition and the rate of the combustion face advance.
Practical implications. The rational parameters of bed preparation at mine gasification, as well as energy and technological parameters of this process are substantiated. New technological schemes for coal reserves working out with gasification have been developed, which will allow additionally to use non-commercial and abandoned mine reserves and extend the mining enterprises duration.
Keywords: underground coal gasification, combustion face, gasifier, exhaust gases, heat and mass balance
Blinderman, M.S., Saulov, D.N., & Klimenko, A.Y. (2008). Forward and Reverse Combustion Linking in Underground Coal Gasification. Energy, 33(3), 446-454.
Blinderman, M.S. (2017). Application of the Exergy UCG Technology in International UCG Projects. IOP Conference Series: Earth and Environmental Science, (76), 012009.
Bondarenko, V.I., Griadushchiy, Y.B., Dychkovskiy, R.O., Korz, P.P., & Koval, O.I. (2007). Advanced Experience and Direction of Mining of Thin Coal Seams in Ukraine. Technical, Technological and Economical Aspects of Thin-Seams Coal Mining, International Mining Forum, 2007, 2-7.
Bondarenko, V., Svietkina, O., & Sai, K. (2017). Study of the Formation Mechanism of Gas Hydrates of Methane in the Presence of Surface-Active Substances. Eastern-European Journal of Enterprise Technologies, 5(6(89)), 48-55.
Borshchevska, Y. (2015). Path to Sustainability. Troubled Gra-dualism of the Unfinished Coal Mining Reform in Ukraine. Journal of Security and Sustainability Issues, 4(4), 323-343.
Dubiński, J., & Turek, M. (2016). Mining Problems of Underground Coal Gasification – Reflections Based on Expe-rience Gained in Experiment Conducted in Katowicki Holding Węglowy S.A. Wieczorek Coal Mine. Mining Science, (23), 7-20.
Dychkovskyi, R.O., Lozynskyi, V.H., Saik, P.B., Petlovanyi, M.V., Malanchuk, Ye.Z., & Malanchuk, Z.R. (2018). Modeling of the Disjunctive Geological Fault Influence on the Exploitation Wells Stability during Underground Coal Gasification. Archives of Civil and Mechanical Engineering, 18(4).
Falshtynskyy, V., Dychkovskyy, R., Lozynskyy, V., & Saik, P. (2012). New Method for Justification the Technological Parameters of Coal Gasification in the Test Setting. Geomechanical Processes during Underground Mining, 201-208.
Falshtyns’kyy, V., Dychkovs’kyy, R., Lozyns’kyy, V., & Saik, P. (2013). Justification of the Gasification Channel Length in Underground Gas Generator. Annual Scientific-Technical Collection – Mining of Mineral Deposits, 125-132.
Falshtynskyi, V.S., Dychkovskyi, R.O., Saik, P.B., Lozynskyi, V.H., & Cabana, E.C. (2017). Formation of Thermal Fields by the Energy-Chemical Complex of Coal Gasification. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 36-42.
Gladii, A. (2017). Armed Conflict in Donbas in the Years 2014/2015 – Internal Split or the Ukrainian-Russian War? Eventual Models for the Further Development of the Conflict. Przeglad Strategiczny, (10), 95-118.
Jiang, L., Chen, Z., & Ali, S.M.F. (2017). Modelling of Reverse Combustion Linking in Underground Coal Gasification. Fuel, (207), 302-311.
Kharlamova, G., Chernyak, O., & Nate, S. (2016). Renewable Energy and Security for Ukraine: Challenge or Smart Way? Journal of International Studies, 9(1), 88-115.
Langan, W.T., & & Friggens, G.R. (1991). Overview of Advanced Coal Combustion and Conversion Clean Coal Technology Demonstration Program. American Society of Mechanical Engineers, 1-7.
Li, Y., Liang, X., & Liang, J. (2007). An Overview of the Chinese UCG Program. Data Science Journal, (6), S460-S466.
Lozynskyi, V.H., Dychkovskyi, R.O., Falshtynskyi, V.S., & Saik, P.B. (2015). Revisiting Possibility to Cross Disjunctive Geological Faults by Underground Gasifier. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (4), 22-28.
Lozynskyi, V., Saik, P., Petlovanyi, M., Sai, K., & Malanchyk, Ye. (2018). Analytical Research of the Stress-Deformed State in the Rock Massif around Faulting. International Journal of Engineering Research in Africa, (35), 77-88.
Mocek, P., Pieszczek, M., Świądrowski, J., Kapusta, K., Wiatowski, M., & Stańczyk, K. (2016). Pilot-Scale Underground Coal Gasification (UCG) Experiment in an Opera-ting Mine “Wieczorek” in Poland. Energy, (111), 313-321.
Nieć, M., Sermet, E., Chećko, J., & Górecki, J. (2017). Evaluation of Coal Resources for Underground Gasification in Poland. Selection of Possible UCG Sites. Fuel, (208), 193-202.
Petenko, I.V., & Maidukova, S.S. (2014). Problemy ren-tabelnosti vuhilnoi produkcii. Coal of Ukraine, 18-27.
Saik, P., Falshtynskyi, V., Dychkovskyi, R., & Lozynskyi, V. (2015). Revisiting the Preservation of Uniformity Advance of Combustible Face. Mining of Mineral Deposits, 9(4), 487-492.
Saik, P.B., Dychkovskyi, R.O., Lozynskyi, V.H., Malanchuk, Z.R., & Malanchuk, Ye.Z. (2016). Revisiting the Underground Gasification of Coal Reserves from Contiguous Seams. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (6), 60-66.
Snihur, V., Malashkevych, D., & Vvedenska, T. (2016). Tendencies of Coal Industry Development in Ukraine. Mining of Mineral Deposits, 10(2), 1-8.
Vivcharenko, O. (2012). Development of Coal Industry of Ukraine in the Context of Contemporary Challenges. Geomechanical Processes during Underground Mining, 1-5.
Wang, G.X., Wang, Z.T., Feng, B., Rudolph, V., & Jiao, J.L. (2009). Semi-Industrial Tests on Enhanced Underground Coal Gasification at Zhong-Liang-Shan Coal Mine. Asia-Pacific Journal of Chemical Engineering, 4(5), 771-779.
Wiatowski, M., Kapusta, K., Świądrowski, J., Cybulski, K., Ludwik-Pardała, M., Grabowski, J., & Stańczyk, K. (2015). Technological Aspects of Underground Coal Gasification in the Experimental “Barbara” Mine. Fuel, (159), 454-462.
Xin, L., Wang, Z., Wang, G., Nie, W., Zhou, G., Cheng, W., & Xie, J. (2017). Technological Aspects for Underground Coal Gasification in Steeply Inclined Thin Coal Seams at Zhongliangshan Coal Mine in China. Fuel, (191), 486-494.
Yang, L. (2003). Clean Coal Technology – Study on the Pilot Project Experiment of Underground Coal Gasification. Energy, 28(14), 1445-1460.