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International Journal of Coal Science & Technology
Scopus
ISSN 2095-8293 · SpringerOpen · 675 articles in the index
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Journal Article
Toxicity of respirable coal dust: An overview of origin, chemistry, mechanisms, and possible remedies
Abstract The prevalence of coal workers’ pneumoconiosis (CWP) has been on the rise among U.S. coal miners since the early 2000s and is most pronounced in central Appalachia. Such adverse effects on human health are partly linked to the toxicity of respirable coal mine dust particles. In this…
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Journal Article
Hydrous pyrolysis of intact coal samples: A combined organic geochemical, petrographic and SEM investigation on artificial maturation
Abstract Coals are known to be source rocks for natural gas, but also for liquid petroleum. Laboratory experiments under controlled physical and chemical conditions can help to understand maturation and hydrocarbon generation in these rocks. Whole-rock cuboids of two bituminous coal samples (0.60%…
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Journal Article
Study on instability evolution mechanism of intermediate bridge retaining slope
Abstract Excavation is one of the key factors inducing slope instability in open-pit mines, particularly for intermediate bridge-supported slopes subjected to dual excavation disturbances. Improper handling of such conditions may lead to large-scale landslides. Therefore, it is essential to…
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Journal Article
Experimental study and machine learning modeling of organic-nano-aged Saudi Arabian Basalt: An implication to gas geo-storage
Abstract Understanding the wettability of carbon dioxide (CO2) and the interfacial properties between reservoir rocks and fluids is crucial for the effective geological carbon sequestration (GCS). The most accurate way to measure these properties is the laboratory experiments under simulated…
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Journal Article
Sandbox test setups for evaluating the performance of borehole heat exchangers: a review
Abstract Geothermal energy has been increasingly gaining attention with the global transition to sustainable energy. One critical component of utilizing geothermal energy is the borehole heat exchanger (BHE), which can extract thermal energy from or inject it into the ground. Sandbox tests are…
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Journal Article
How flow velocity affects the conductivity of propped coal fracture: New insights
Abstract The conductivity of propped fracture in coal exerts a profound effect on the transport of coalbed methane (CBM) from low-permeable coal seams with hydraulic fracturing stimulation. Understanding the conductivity dynamics caused by flow velocity is crucial to the accurate prediction of CBM…
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Journal Article
Application of ionic liquids in CO2 capture, sequestration, and conversion: A comprehensive review
Abstract The substantial rise in greenhouse gas emissions, especially carbon dioxide (CO2), is causing global warming, sea level rise, and climate change. This situation has prompted a search for effective and environmentally friendly carbon capture, utilization, and storage (CCUS) methods, which…
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Journal Article
From wood to huminite: Molecular structural transformations
Abstract The formation of coal has always been a topic of interest for coal geologists and plays an important role in the enrichment of coal and coal-associated resources, such as critical elements and coalbed methane. In this study, wood, peat, lignite and xylite samples were collected to study…
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Journal Article
Evolution behavior of active phase of oil-soluble iron catalysts during direct liquefaction of Shangwan coal
Abstract Oil-soluble catalyst is a promising alternative to non-oil-soluble catalyst due to excellent dispensability in coal-oil slurry and relatively high activity. To reveal evolution behavior of active phase of the oil-soluble Fe-based catalysts in direct liquefaction of Shangwan coal, three…
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Journal Article
Mineralogy and geochemistry of the late Permian super-high-organic-sulfur coal from the Naliang mine, Xian’an coalfield in Guangxi province, China, with emphasis on the enrichment of the critical elemental assemblage of V-Se-Mo-U
Abstract Super-high-organic-sulfur (SHOS) coals are limited in their utilization because they are rich in sulfur and other toxic trace elements. SHOS coals are generally rich in V, Se, Mo, U, Re, rare earth elements and yttrium (REY). This paper investigates the causes of elemental enrichment in…
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Journal Article
A comprehensive study on huff-n-puff oil recovery in tight sedimentary tuff oil reservoirs
Abstract Huff-n-puff (HnP) is currently an important means to enhance the oil recovery of tight oil reservoirs. In this study, taking tight sedimentary tuff oil reservoirs in Santanghu Basin, China as an example, the oil production law, pore utilization characteristics, and influencing factors of…
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Journal Article
Research on quantitative characterization method of regional stress field in coal seams based on microseismic and computed tomography (MS-CT): A case study
Abstract The growing burial depth increases the potential risk of ground stress-induced coal and rock dynamic disasters in coal mining. This study attempts to use microseismic and computed tomography (MS-CT) to quantitatively characterize the stress field in coal seam areas. A comprehensive…
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Journal Article
Investigation on the creep induced slip of open-pit mine with weak layers
Abstract The long-term creep-induced instability of slopes containing weak layers posed significant safety risks in open-pit mining operations. A key scientific difficulty lies in understanding the coupled mechanisms of excavation-induced stress redistribution and internal time-dependent…
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Journal Article
Coalbed methane (CBM) well performance: A new methodology combining IPR and VLP analysis
Abstract Unlike conventional gas reservoirs where gas saturation exists at its maximum value initially, coalbed methane (CBM) reservoirs are unique in a way that gas saturation in reservoir starts from zero and builds up to reach a peak value as the adsorbed gas in the coal matrix desorbs into the…
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Journal Article
In-situ SAXS study on deformation behavior of nanopores during CO2 adsorption in cyclically water-immersed coal based on multifractal theory
Abstract The multifractal characteristics of coal nanopore structure have important implications for the occurrence and migration of coalbed methane. Based on the in-situ adsorption device, this paper introduced the multifractal theory into the in-situ small angle X-ray scattering (SAXS) method…
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Journal Article
Advancing water-conducting fracture zone height prediction in coal mining via hybrid XGBoost models with interpretability analysis
Abstract The height of the water-conducting fracture zone (WCFZH) is a crucial indicator for assessing mining-induced damage in coal mines. Accurate and interpretable prediction of WCFZH is essential for disaster prevention and safe mining. Therefore, this paper combines extreme gradient boosting…
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Journal Article
Effects of water intrusion on fracture characteristics of hard coal
Abstract Aquifer water can cause serious geological hazards by catastrophically rushing into underground space. The water seepage can increase the moisture content and pore pressure of coal/rock, which can change mechanical behaviour of coal/rock subject to tectonic and abutment stress…
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Journal Article
Review on ammonia/coal co-combustion fundamental and technology in thermal power generation
Abstract Ammonia, as a carbon-free fuel, promises a significant cut of CO2 emissions from power sectors, especially in coal-fired power plants. Direct combustion of ammonia in existing boiler systems is hindered owing to low flame temperature, decreased flame velocity, low reactivity, and elevated…
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Journal Article
A quantitative framework for evaluating overburden disturbance and surface subsidence induced by coal seam mining
Abstract Coal seam mining inevitably causes varying degrees of disturbance to the overlying strata and surface environment, necessitating the establishment of a scientific and systematic quantitative assessment framework for overburden disturbance. This study introduces a comprehensive methodology…