Comparison of Selected Procedures for Generating Activated Carbon. . .
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Table 1
Indicator values for the 21 method included in the evaluation
Indicators
№
Method
Method
1: TempA, ◦
C
2: Yield, %
3: Surf, m 2
/g
4: MoA
1
M1
Laine et al. 1989
−400
45
1180
1
2
M2a
Lopez et al. 1996
−800
15
620
1
3
M2b
Lopez et al. 1996 Chemical activation with H3P04 (40%).
−450
40
1450
1
4
M2c
Lopez et al. 1996 Chemical activation with ZnCl2 (25%).
−450
40
1550
1
5
M3a
Laine and Yunes 1992 Physical activation (with CO
2 at 800 ◦
C 3–4 h.)
−800
20
751
1
6
M3b
Laine and Yunes 1992 C3: Chemical activation (with H
3 PO
4 30 wt% acid)
−500
30
1360
1
7
M4a
Pastor-Villegas et al.1994 Activation: Air
−750
60
439
2
8
M4b
Pastor-Villegas et al. 1994 Activation: CO
2
−950
60
650
1
9
M4c
Pastor-Villegas et al. 1994 Activation: H
2 O
−950
60
759
2
10
M5a
Phan et al. 2006 Activation: CO
2
−950
7
912
1
11
M5b
Phan et al. 2006 Chemical activation: H
3 PO
4
−900
33
959
1
12
M6a
Giraldo and Moreno-Piraján 2008 Chemical activation using 50% HNO
3
−900
46
868
1
13
M6b
Giraldo and Moreno-Piraján 2008 Chemical activation using 50% HNO
3
−900
46
967
1
14
M7a
Hayashi et al. 2000a Chemical activation: ZnCl
2
−500
60
1000
1
15
M7b
Hayashi et al. 2000a Chemical activation: H
3 PO
4
−500
60
700
1
16
M7c
Hayashi et al. 2000a Chemical activation: KOH
−500
65
250
1
17
M8a
Hsu and Teng 2000 Chemical activation: ZnCl
2
−600
69
960
1
18
M8b
Hsu and Teng 2000 Chemical activation: H
3 PO
4
−600
80
770
1
19
M8c
Hsu and Teng 2000 Chemical activation: KOH
−600
45
1800
1
20
M9
Teng and Wang 2000 Physical activation: 900 ◦
C KOH impregnation
−900
12
2220
1
21
M10
Abit et al. 2019 Activation with H
2 O at 800 ◦
C, 60 min.
−800
28
542
2