Table 3. Comparison of Sulfur Capacity of Different Types of SO2 Adsorbents.
| types | SO2 adsorbents | adsorption temperature (°C) | concentration of SO2 (ppm) | gas flow (mL min–1) | sulfur capacity (mg g–1) | refs |
|---|---|---|---|---|---|---|
| activated carbon | PAC | 75 | 1700 | 500 | 82.58 | (57) |
| AC-400/AC-900 | 150 | 2000 | 300 | 30 | (13) | |
| MWY30T | 25 | 700 | 130 | 27.66 | (58) | |
| supported ionic liquid | [EMIM][OAc]-39.7% | 25 | 1395 | 30 | 65.92 | (27) |
| [C2min][Ac] | 25 | 15 | 54.8 | (59) | ||
| C3O1Mim-SiO2-0.1/1 | 25 | 110 | (60) | |||
| TMGL-SiO2-1/1 | 30 | 2160 | 150 | (56) | ||
| TAIL/SiO2 | 30 | 1000 | 1000 | 124 | this work |