Isosteric adsorption heat of CO2 and CH4 and IAST selectivities of PS-derived carbons.
| Sample | Q st kJ mol−1 | IAST selectivity (@298 K, 1 bar) | |||
|---|---|---|---|---|---|
| CO2 | CH4 | CO2/N2 | CO2/CH4 | CH4/N2 | |
| (15 : 85) | (10 : 90) | (50 : 50) | |||
| PSK-1-550 | 35.4 | 31.3 | 32.7 | 7.1 | 4.6 |
| PSK-2-650 | 33.2 | 28.0 | 23.2 | 4.7 | 4.8 |
| PSK-3-750 | 31.8 | 24.0 | 13.5 | 3.2 | 4.1 |