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. 2020 Jul 17;5(29):18432–18440. doi: 10.1021/acsomega.0c02293

Table 2. Adsorption Constants of Tunliu Samples under Different Confining Pressures.

  a (cm3/g)
 b (MPa–1)
confining pressure (MPa) CH4 CO2 CH4 CO2
8 8.13 19.42 0.48 0.92
12 8.40 19.77 0.40 0.80
16 8.54 19.79 0.34 0.71
20 8.59 19.84 0.33 0.69
a

Abbreviations: aCO2 and aCH4 are the maximum adsorption capacities of VCO2 and VCH4 (cm3/g), and bCO2 and bCH4 are the adsorption equilibrium constants of CO2 and CH4 (1/MPa).