2022
DOI: 10.1038/s41598-022-10752-5
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Quantitative analysis of heat release during coal oxygen-lean combustion in a O2/CO2/N2 atmosphere by TG-DTG-DSC

Abstract: Heat release of coal combustion in an oxygen-lean and multi-gas environment is a common phenomenon, coalfield fires caused by it can lead to serious environmental destruction and loss of coal resources. Simultaneous thermal analysis experiments for Bulianta (BLT, high-volatile bituminous coal) and Yuwu coal (YW, anthracite) in 21vol.%O2/79vol.%N2 and 15vol.%O2/5vol.%CO2/80vol.%N2 were carried out to study the law of heat release. Based on the TG-DTG-DSC curves, the combustion characteristic parameters were ana… Show more

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Cited by 3 publications
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“…At this temperature, calcite decomposed into CaO and released CO 2 . Additionally, the presence of the diffraction peak of anorthite was detected in the combustion product at 1000 • C. This observation could be attributed to the decomposition reaction of calcite during the coal gangue combustion process and its interaction with the silica laminate melt, resulting in the formation of anorthite [40,48]. Table 6 presents the contents of Ga and Ge in the combustion products across various particles.…”
Section: The Redistribution Characterizations Of Ga and Ge During Coa...mentioning
confidence: 92%
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“…At this temperature, calcite decomposed into CaO and released CO 2 . Additionally, the presence of the diffraction peak of anorthite was detected in the combustion product at 1000 • C. This observation could be attributed to the decomposition reaction of calcite during the coal gangue combustion process and its interaction with the silica laminate melt, resulting in the formation of anorthite [40,48]. Table 6 presents the contents of Ga and Ge in the combustion products across various particles.…”
Section: The Redistribution Characterizations Of Ga and Ge During Coa...mentioning
confidence: 92%
“…Calcite decomposes into calcium oxide and carbon dioxide during combustion, potentially affecting the alkalinity of combustion products. The presence of pyrite could influence the migration of sulfur elements in combustion products [39,40].…”
Section: Geochemical Characteristics Of Ga and Ge In Coal Ganguementioning
confidence: 99%
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