Table 5.
Selected properties of the chemically activated carbons.
| Material | Slurry pH | T (°C) | Ash (%) |
Fixed Carbon (%) |
Elemental Composition (%) a |
SBET (m2/g) |
Vmicrob (cm3/g) |
Vmesoc (cm3/g) |
||
|---|---|---|---|---|---|---|---|---|---|---|
| C | N | S | ||||||||
| K2CO3-AC | 5.5 | 650 | 13.1 (0.5) | 55.0 (1.3) | 61.1 (0.6) | 5.8 (0.3) | 0.2 (0.1) | 583 | 0.235 | 0.189 |
| 850 | 43.4 (0.8) | 28.9 (1.0) | 34.9 (1.0) | 0.5 (0.1) | 0.1 (0.1) | 832 | 0.290 | 0.268 | ||
| KOH-AC | 6.6 | 650 | 18.0 (0.5) | 52.0 (1.4) | 60.9 (2.7) | 7.4 (0.2) | 0.7 (0.1) | 402 | 0.162 | 0.079 |
| 850 | 10.9 (0.4) | 67.2 (1.7) | 81.0 (3.8) | 1.3 (0.1) | 0.1 (0.1) | 968 | 0.354 | 0.271 | ||
| FeCl3-AC | 5.1 | 650 | 37.6 (0.7) | 23.8 (0.5) | 39.9 (0.1) | 4.8 (0.2) | 0.1 (0.1) | 443 | 0.179 | 0.098 |
| 850 | 58.4 (1.2) | 7.5 (0.3) | 28.9 (0.2) | 1.8 (0.1) | 0.2 (0.1) | 411 | 0.136 | 0.146 | ||
| ZnCl2-AC | 5.7 | 650 | 9.4 (0.3) | 65.9 (1.3) | 66.4 (0.1) | 6.9 (0.2) | 0.3 (0.1) | 661 | 0.249 | 0.145 |
| 850 | 18.6 (0.6) | 50.1 (1.6) | 57.6 (3.0) | 5.3 (0.2) | 0.6 (0.1) | 1030 | 0.398 | 0.204 | ||
a Composition data in wt % o.d.b. b Volume of micropores. c Volume of mesopores.