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RSS FeedsEnergies, Vol. 11, Pages 2735: The Influence of Temperature on the Expansion of a Hard Coal-Gas System (Energies)


13 october 2018 16:00:15

Energies, Vol. 11, Pages 2735: The Influence of Temperature on the Expansion of a Hard Coal-Gas System (Energies)

This paper presents experimental results of the sorption-dilatometric kinetics of methane and carbon dioxide on a sample of hard coal from one of the coal mines in the Upper Silesian Coal Basin. The experiment included isothermal and non-isothermal-isobaric stages. For the isothermal stage, it was found that, up to a certain point (about 8 dm3/kg), the sample’s expansion was linearly related to the amount of gas absorbed. Studies on dilatometric kinetics under constant pressure, with a reduction in temperature, indicate that a dominant share of the heat-expanding properties of carbonaceous material influences changes in the size of the sample in the coal-gas system. It was also found that the sample expansion, due to temperature change, was 2.25‰, for the sample in both the vacuum and the non-adsorbing gas atmosphere. Digg Facebook Google StumbleUpon Twitter
51 viewsCategory: Biophysics, Biotechnology, Physics
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