Table 5.
Comparison of the long-term stability of the FS-coated PP membrane with those of previously reported membranes.
| Membrane | Inlet gas (gas flow rate) | Liquid absorbent (gas flow rate) | Liquid-to-gas ratio | Absorption temperature (K) | Long-term stability | Ref. |
|---|---|---|---|---|---|---|
| FS-coated PP | 15% CO2 in N2 (50 mL/min) | 30 wt% MEA (5 mL/min) | 0.1 | 313.15 | Decline 10% after 17 d | This study |
| PVDF-TDMS-1.5 | 19% CO2 in N2 (20 mL/min) | 1 M DEA (50 mL/min) | 2.5 | Not reported | Decline 17% after 17 d | [43] |
| Al2O3-FAS | 15% CO2 in N2 (50 mL/min) | 20 wt% MEA (10 mL/min) | 0.2 | 293.15 | Decline 15% after 3 d | [42] |
| PVDF + LDPE | 20% CO2 in N2 (150 mL/min) | 1 M MEA (50 mL/min) | 0.33 | Not reported | Decline 14% after 1 d | [44] |
| PVDF + DL-4% SiO2-80 | 19% CO2 in N2 (100 mL/min) | 1 M DEA (50 mL/min) | 0.5 | 293.15 | Decline 18% after 6 d | [45] |
| PP | 20% CO2 in N2 (200 mL/min) | 1 M MEA (17 mL/min) | 0.08 | 293.15 | Decline 14% after 7 d | [14] |
| PVDF-PA | 19% CO2 in N2 (130 mL/min) | Water (70 mL/min) | 0.54 | 297.15 | Decline 17% after 2 d | [46] |