Results 1 to 10 of about 272 (156)
Monitoring the gasification area and its behavior in underground coal gasification by acoustic emission technique instead of temperature measurement [PDF]
Scientific Reports, 2023 Underground Coal Gasification (UCG) requires monitoring of the gasification area because the gasification process is invisible and the reaction temperature exceeds 1000 °C.
Akihiro Hamanaka +8 more
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Frontiers in Energy Research, 2023 Although coal mining has played a substantial role in world’s development as a critical fuel source for at least 25 years, its value is partly offset by the massive environmental issues it presents during combustion.
Paitoon Tontiwachwuthikul +2 more
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Energies, 2021 One of the most important issues during UCG process is wastewater production and treatment. Condensed gasification wastewater is contaminated by many hazardous compounds. The composition of the generated UCG-derived wastewater may vary depending on the type of gasified coal and conditions of the gasification process.
Katarzyna Stolecka-Antczak +2 more
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Gas production strategy of underground coal gasification based on multiple gas sources. [PDF]
ScientificWorldJournal, 2014 To lower stability requirement of gas production in UCG (underground coal gasification), create better space and opportunities of development for UCG, an emerging sunrise industry, in its initial stage, and reduce the emission of blast furnace gas, converter gas, and coke oven gas, this paper, for the first time, puts forward a new mode of utilization ...
Tianhong D +3 more
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Energies, 2017 Underground coal gasification (UCG) is a technique to recover coal energy without mining by converting coal into a valuable gas. Model UCG experiments on a laboratory scale were carried out under a low flow rate (6~12 L/min) and a high flow rate (15~30 L/
Akihiro Hamanaka, Fa-Qiang Su
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Effects of water injection on reaction temperature and hydrogen production in horizontal co-axial underground coal gasification [PDF]
Scientific ReportsUnderground coal gasification (UCG) is process of directly recovering energy as combustible gases such as hydrogen and carbon monoxide by combusting unmined coal resources in situ. During UCG process, the temperature in the gasification zone can exceed 1,
Rika Iriguchi +8 more
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Underground coal gasification (UCG): A new trend of supply-side economics of fossil fuels
Natural Gas Industry B, 2016 China has a huge demand for energy. Under the present energy structure of rich coal, lean oil, less gas, limited and low-rising rate renewable energy, discussion focus is now on the high-efficient mining of coal as well as its clean-and-low-carbon use.
exaly +3 more sources
Key technologies and prospect for in-situ gasification mining of deep coal resources
矿业科学学报, 2021 China has rich reserves of deep coal resources, and underground coal gasification can transform coal into gas and transport it to the ground, which is an important way for in-situ fluidized mining of deep coal.This article introduces the development ...
Liu Shuqin, Chang Zhibing, Liu Jinchang
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Analysis of recovery rate for underground coal gasification based on strength and permeability
Meitan xuebao, 2023 The medium and deep underground coal gasification (UCG) is a new technology of coal utilization, and there is still lack of criterions to evaluate recovery rate.
Pengcheng HAO +7 more
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Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research
Energies, 2023 The underground coal gasification (UCG) technology converts coal into product gas and provides the option of environmentally and economically attractive coal mining. Obtained syngas can be used for heating, electricity, or chemical production.
Ján Kačur +3 more
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