Table 3.
Permeation properties of selected Pebax membranes.
| Pebax Type | Additive | Additive Amount (wt%) | Test Conditions | CO2 Permeability (Barrer) |
CO2/N2 Selectivity (-) |
CO2/CH4 Selectivity (-) |
Ref. |
|---|---|---|---|---|---|---|---|
| 3000 | - | - | 25 °C, 6 bar | 39.7 | 23.3 | 13.2 | [35] |
| 1657 | 25 °C, 1 bar | 66.5 | 57.8 | 19.5 | [101] | ||
| 1657 | - | - | 25 °C, 10 bar | 65.71 | 81.9 | [94] | |
| 1657 | - | - | 30 °C, 2 bar | 106 | 41 | [84] | |
| 1657 | - | - | 30 °C, 1 bar Mixed CO2/CH4 (30/70 vol%) |
91 (Dry) 456 (Humid) |
17.2 (Dry) 20.9 (Humid) |
[99] | |
| 1657 | - | - | 30 °C, 2 bar Mixed CO2/CH4 (30/70 vol%) |
95 (Dry) 470 (Humid) |
17.4 (Dry) 20.5 (Humid) |
[87] | |
| 1657 | - | - | 30 °C, 2 bar Mixed CO2/CH4 (30/70 vol%) N2 as sweep gas |
90 (Dry) 490 (Humid) |
17.5 (Dry) 17 (Humid) |
[18] | |
| 1657 | - | - | 30 °C, 2 bar (dry) 30 °C, 2 bar (humidified) |
89 210 |
53 38 |
[83] | |
| 1657 | - | 35 °C, 5 bar | 104 | 38 | [97] | ||
| 1657 | - | - | 35 °C, 1 bar | 83 | 43 | [47] | |
| 1657 | PEG-MEA | 50 | 35 °C, 1 bar | 572 | 43 | [47] | |
| 1657 | Glycerol (Gl) | 15 | 25 °C, 10 bar | 50.42 (−23%) |
222.7 | [94] | |
| 1074 | - | - | 25 °C, 3 bar | 110.67 | 11.09 | [13] | |
| 1074 | - | - | 30 °C, 1.5 bar | 145.3 (single) 98.6 (mixed) |
19.4 (single) 33.3 (mixed) |
[58] | |
| 1074 | - | - | 30 °C, 1.5 bar | 145.3 | 19.2 | [61] | |
| 2533 | - | - | 35 °C, 1 bar | 364.61 | 23.80 | [48] | |
| 2533 | - | - | 35 °C, 5 bar | 298 | 24 | [105] |