Table 3.
Summary of the selected carbonaceous adsorbents for C2H4/C2H6 separation.
| Sample ID | Uptake (mmol g−1) | Qst (kJ mmol−1) | Selectivity SC2H4/C2H6 | Ref. | ||
|---|---|---|---|---|---|---|
| C2H4 | C2H6 | C2H4 | C2H6 | |||
| CMK-3a | 2.9 | 3.1 | 20 | 19 | 0.94c | [32] |
| 4CuCl/CMK-3a | 3.2 | 1.7 | 53 | 15 | 1.88c | |
| 8CuCl/CMK-3a | 3.6 | 1.3 | 66 | 13 | 2.77c | |
| MC-S-Ag-3b | 3.4 | 2.6 | — | — | 2.4d | [94] |
| CuCl(6.0)/ACa | 2.7 | 0.8 | — | — | 52d | [95] |
| CuCl(8.0)/ACa | 2.6 | 0.7 | — | — | 69.4d | |
| beta-ZTC-O 2.2a | 4.9 | 7.3 | 17 | 24 | 1.5e | [96] |
| EMT-ZTCa | 4.1 | 5.9 | 24 | 25 | 1.6e | |
| FAU-ZTCa | 4.0 | 5.0 | 28 | 25 | 1.7e | |
| 25CPDA@A-ACsb | 5.9 | 7.2 | — | — | 2.75f | [30] |
| 50CPDA@A-ACsb | 6.3 | 7.1 | 32 | 35 | 3f | |
| 75CPDA@A-ACsb | 5.9 | 7.1 | — | — | 2.79f | |
| NAC-800b | 4.5 | 5.8 | 22 | 24 | 0.77e | [90] |
| ANPC-1-800b | 5.7 | 6.8 | 30 | 34 | 1.54e | [97] |
| MGA-700-4b | 6.0 | 7.3 | 24 | 29 | 6.76f | [98] |
| MGA-750-3b | 5.7 | 7.0 | 22 | 28 | 6.44f | |
| C-PDA-3b | 5.1 | 6.6 | 22 | 22 | 1.83e | [99] |
Gas uptake at a303 K and 100 kPa and b298 K and 100 kPa. cUptake ratio of C2H4/C2H6 as separation selectivity; IAST predicted selectivity for separation of C2H4/C2H6 with mole ratios of d50/50; IAST predicted reverse selectivity for separation of C2H4/C2H6 with mole ratios of e50/50 and f15/1.