Sorption properties of hard coals with regard to gases present in the mine atmosphere
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DOI: 10.1007/s12583-016-0716-2
Abstract: In this study, the sorption capacities of hard coals with reference to gases present in the mine atmosphere: carbon dioxide, methane, ethane, ethene, propane, propene, carbon monoxide and hydrogen were examined. For laboratory tests, 4… read more here.
Keywords: gases present; carbon; present mine; mine atmosphere ... See more keywords
Insight into the macromolecular structural differences between hard coal and deformed soft coal
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DOI: 10.1016/j.fuel.2019.02.070
Abstract: Abstract Coalification and tectonic deformation have significant influence on the macromolecular structure of coal. In this paper, Fourier transform infrared (FTIR) spectral and X-ray photoelectron spectrometer (XPS) measurements were conducted on soft and hard coals… read more here.
Keywords: tectonic deformation; hard coals; aromatic rings; soft hard ... See more keywords