ArticleACS omega2025
Effects of Oil Leaching on the Physicochemical Structure of Coal.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
Funding
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Abstract
To investigate the variation in the gas adsorption performance of oil-impregnated coal under crude oil intrusion conditions, infrared spectroscopy experiments, combined with the author's research, analyzed the main active functional groups of raw coal and oil-impregnated coal and calculated the pore fractal dimensions of both. This study aims to elucidate the mechanism by which crude oil intrusion affects the gas adsorption performance. The total hydroxyl functional group content of oil-impregnated coal exhibited an average increase of 22.87% compared to the original coal, while the percentage decreased by 15.38%. The total content and percentage of aliphatic hydrocarbons and oxygenated functional groups increased significantly, whereas the total content and percentage of aromatics showed a minimal change. The aromaticity of oil-impregnated coal decreased, the content of aliphatic hydrocarbons increased, the length of its aliphatic chains increased, the number of branched chains decreased, the degree of aromatic cyclization was high, and the content of C=O increased. The dimensional shape
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