Advanced Underground Coal Gasification Technology for Efficient Production of Synthetic Gaseous Fuels
Article Sidebar
Main Article Content
Abstract
The study presents a comprehensive assessment of a novel underground coal gasification technology designed to improve both economic efficiency and environmental performance relative to traditional coal extraction and surface gasification methods. Experiments were conducted using a thermochemical modeling installation, a high-temperature steam generator, and a catalytic conversion unit. Results demonstrated that the process allowed precise regulation of the gas composition by adjusting the oxygen content, temperature, and pressure of the injected medium. Under optimized steam-oxygen injection, the produced syngas achieved a calorific value of up to 10.6 MJ/m³, with hydrogen concentrations exceeding 42%. Subsequent catalytic methanation yielded substitute natural gas with a calorific value of 32.5-34.2 MJ/m³ and a methane content of up to 91%. The gas yield per ton of coal ranged from 1700 to 2300 m³, depending on the coal type. The calculated production cost of the synthetic gas was 52–56 USD per 1000 m³, significantly lower than that of comparable surface technologies. The findings confirm that this approach enables effective in situ conversion of low-grade coal reserves into a valuable gaseous fuel while reducing costs and enhancing energy security.
Article Details
Section
This work is licensed under a Creative Commons Attribution 4.0 International License.
THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/
References
Kreinin EV, Belov AV, Zorya AY. Perspectives of Chemical Processing of Underground Coal Gasification Gas to Synthetic Liquid Fuel. Gazokhimiya 2009; 9:18–20.
Brigida V, Golik VI, Voitovich EV, Kukartsev VV, Gozbenko VE, Konyukhov VY, Oparina TA. Technogenic Reservoirs Resources of Mine Methane When Implementing the Circular Waste Management Concept. Resources 2024; 13:33.
Ruban AD. Underground Coal Gasification – A New Stage of Technological and Investment Development. Mining Informational and Analytical Bulletin 2007; 2.
Zaalishvili VB, Melkov DA, Martyushev NV, Klyuev RV, Kukartsev VV, Konyukhov VY, Kononenko RV, Gendon AL, Oparina TA. Radon Emanation and Dynamic Processes in Highly Dispersive Media. Geosciences 2024; 14:102.
Klimenko AY. Early Ideas in Underground Coal Gasification and Their Evolution. Energies 2009; 2:456–476.
Fastykovsky AR, Martyushev NV, Musatova AI, Karlina AI. Feasibility Demonstration of Normative Models for Sheet-Rolling Shop Productivity. Message 2. Chernye Metally 2024; 2024(3):63–68.
Tynchenko V, Kravtsov K, Podanyov N, Fedorova A, Bezvorotnykh A. Automation for the Sustainable Development of Agriculture. BIO Web of Conferences 2024; 113:05010.
Gregg DW, Hill RW, Olness DU. Overview of the Soviet Effort in Underground Gasification of Coal. Lawrence Livermore Laboratory Report UCRL-52219 1976.
Tian H. Development of a Thermo-Mechanical Model for Rocks Exposed to High Temperatures during Underground Coal Gasification. Ph.D. Thesis, RWTH Aachen University 2013.
Malozyomov BV, Tynchenko VS, Kukartsev VA, Bashmur KA, Panfilova TA. Investigation of Properties of Laminar Antiferromagnetic Nanostructures. CIS Iron and Steel Review 2024; 27(1):84–90.
Zapar WM, Gaeid KS, Mokhlis HB, Al Smadi TA. Review of the Most Recent Work in Fault Tolerant Control of Power Plants 2018–2022. Tikrit Journal of Engineering Sciences 2023; 30(2):103–113.
Lazarenko SN, Mazakin VP, Trizno SK, Gavrilov IV. Underground Coal Gasification in Kuzbass: New Possibilities. Institute of Coal and Coal Chemistry, Siberian Branch of the RAS, Kemerovo 2006.
Sokolov AA, Fomenko VA, Aksenova MA, Malozyemov BV, Kerimzhanova MF. Development of a Methodology for Radon Pollution Studies Based on Algorithms Taking into Account the Influence of Constant Mountain Valley Winds. Applied Chemical Engineering 2024; 7(2):ACE-1865.
Tynchenko YA, Kukartsev VV, Gladkov AA, Panfilova TA. Assessment of Technical Water Quality in Mining Based on Machine Learning Methods. Sustainable Development of Mountain Territories 2024; 16(1):56–69.
Skafa PV. Underground Coal Gasification. Gosgortechizdat, Moscow 1960.
Suprun E, Tynchenko V, Khramkov V, Kovalev G, Soloveva T. The Use of Artificial Intelligence to Diagnose the Disease. BIO Web of Conferences 2024; 84:01008.
Russo YV, Kazak VN. Changes in Physical and Mechanical Properties of the Coal Seam Roof Under Underground Coal Gasification. Journal of Underground Coal Gasification 1958; 4:36–40.
Derbin Y, Walker J, Wanatowski D, Yao Y. Soviet Experience of Underground Coal Gasification Focusing on Surface Subsidence. Journal of Zhejiang University Science A 2015; 16:839–850.
Podgornyj Y, Skeeba V, Martynova T, Rozhnov E, Yulusov I. Synthesis of the Heddle Drive Mechanism. Obrabotka Metallov 2024; 26(1):80–98.
Takyi SA, Qian H, Raza M, Huang G. Current Status and Technology Development in Implementing Low-Carbon Energy on Underground Coal Gasification (UCG–CCUS/CCU). Frontiers in Energy Research 2023; 11:1051417.
Tang C, Chen Z, Bai X, Wang Z, Liu Y. Stability Evaluation Method of Gasification Coal Pillar Under Coupled Conditions. Science of The Total Environment 2024; 924:171665.
Strugała-Wilczek A, Cebulak S, Kotyrba A, Kapusta K, Wiatowski M. Treatment Effectiveness for Post-Process Underground Coal Gasification Wastewater. Journal of Environmental Management 2024; 360:121764.