Table 3. Fitting Results of Isothermal Adsorption Constantsa.
| sample number | sample size | a (cm3·g–1) | b (MPa–1) | R2 |
|---|---|---|---|---|
| CZ-200 | 200 mesh | 43.1071 | 1.0686 | 0.9892 |
| CZ-60 | 60–80 mesh | 44.6449 | 1.1292 | 0.9927 |
| CZ-C | columnar | 50.7840 | 9.0967 | 0.9990 |
| WY-200 | 200 mesh | 50.7870 | 3.0702 | 0.9743 |
| WY-60 | 60–80 mesh | 40.7916 | 2.6598 | 0.9848 |
| WY-C | columnar | 42.2262 | 4.6748 | 0.9719 |
| YJL-200 | 200 mesh | 63.8162 | 7.8625 | 0.9927 |
| YJL-60 | 60–80 mesh | 41.6039 | 6.1419 | 0.9830 |
| YJL-C | columnar | 32.5195 | 5.5979 | 0.8040 |
Note: a, the Langmuir volume (cm3·g–1); b, the reciprocal of Langmuir pressure (MPa–1).