Table 6. Yield and Some Properties of Activated Carbons Obtained by Chemical Activation with ZnCl2.
carbon precursor | yielda (wt %) | ash (wt %) | BET surface area (m2g–1) | micropore area (m2g–1) | micropore volume (cm3g–1) | % of Smicro in SBET |
---|---|---|---|---|---|---|
PYR-300 | 39.2 | 23.5 | 1059 | 791 | 0.350 | 74.6 |
ePYR-300 | 45.7 | 26.5 | 605 | 393 | 0.182 | 64.9 |
HC-220-60 | 39.1 | 5.7 | 1142 | 421 | 0.203 | 36.9 |
eHC-220-60 | 51.6 | 16.2 | 1224 | 391 | 0.188 | 31.9 |
Calculated based on char weight.