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Displacement sorption of CO2 and CH4 on low rank hard coal, within a low gas pressure range |
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Displacement sorption of CO2 and CH4 on low rank hard coal, within a low gas pressure range Authors: G. Ceglarska-Stefańska, K. Zarebska, K. Aleksandrowicz
The study of the sorption/desorption kinetics and equilibrium states of single CO2 and CH4 gases, mutually displacing an earlier sorbed one, as well as the studies of coal dilatation/contraction accompanying the sorption processes under low gas pressures are presented in this paper. he aim of the work was to find the correlation between the properties of the hard coal and the progress of the process of methane liberation. Based on the results obtained it seems worth stressing that there exists a need to carry out parallel sorption/dilatation investigations during structural studies of hard coals. Moreover, the results of the sorption investigations may be used for the analysis of the stress in exploited rock masses.
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2011