Table 1. SO2 Absorption Capacity in the Three Functional ILs Aqueous Solutions.
| absorption capacity of SO2a |
|||
|---|---|---|---|
| entry | absorbents (mIL:mH2O = 1:1) | g SO2/g abs | mol SO2/mol IL |
| 1 | [MEA][Lac]+H2O | 0.067 | 0.32 |
| 2 | [TMG][Lac]+H2O | 0.089 | 0.57 |
| 3 | [N2222][Lac]+H2O | 0.103 | 0.71 |
Absorption conditions: temperature, 40.0 °C; SO2 concentration, 2.0%.