| IL | IL amount (mol) | pinitial (kPa) | pfinal (kPa) | CO2 absorbed (mol) | Absorption efficiency (mol/mol) |
| [bmim] [I] | 0.013 | 95.8 | 93.7 | 1.6 × 10−4 | 0.014 |
| [bmim] [ace] | 0.012 | 98.2 | 47.8 | 3.8 × 10−3 | 0.32 |