Table 2. Summary of the Cyclic Loading (the CO2 Loading Change before and after CO2 Desorption) and Desorption Efficiency of the 5.0 M MEA Solution with and without Different Catalysts at 99 °Ca.
| parameters | none | TiO2 | Fe2O3 | Al2O3 | AlOOH | MCM-41 | ZrO2 | HZSM-5 | TiO(OH)2 | FeOOH | ZrO(OH)2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| cyclic loading (mol/mol) | 0.148 | 0.203 | 0.209 | 0.218 | 0.220 | 0.224 | 0.225 | 0.238 | 0.257 | 0.265 | 0.272 |
| desorption efficiency (%) | 28 | 39 | 40 | 42 | 42 | 43 | 43 | 46 | 49 | 51 | 52 |
The weight ratio of the catalyst to MEA solution is 1 wt %.