605
in Ni-SBA-15 catalyst increased conversion up to 85% for the first 28 h, and after
that it dropped to 80% at the end of reaction. The hydrogen selectivity of all the
catalysts was around 70–80% except Ni-SBA-15 and Co-Ni- SBA-15 (IMPG)
catalyst.
The effect of different Ni loading was investigated in SRG by Senseni et  al.
[100]. Glycerol conversion increased with the increase of Ni loading up to 15%.
Then glycerol conversion decreased. This was attributed to lower Ni dispersion or
bigger Ni crystal size at higher nickel loading [103]. However, H 2 selectivity did not
vary too much with the increase of Ni loading over the mesoporous γ-Al 2 O 3 support.
Table 6 Catalyst activity in SRG of different mesoporous supported catalysts
Catalysts
Metals
(wt%)
Temperature
(°C)
C 3 H 8 O 3
conversion (%)
H 2 selectivity/
yield (%)
References
1Ni-2Al 2 O 3 -
2ZrO 2
Ni (11.4) 600
93
72
[102]
1Ni-2SiO 2 -2ZrO 2 Ni (9.9)
600
73
70
[102]
Ni/SBA-16
Ni (10)
600
63
62
[102]
Ni/SBA-15
Ni (6.8)
600
46
52.6
[97]
Ni/Mg/SBA-15
Ni (6.7)
Mg (6.0)
600
97.5
53.2
[97]
Ni/Ca/SBA-15
Ni (6.5)
Ca (7.1)
600
98.4
53.0
[97]
Co/SBA-15
Co (7)
600
90
57.1
[98]
Co/Zr/SBA-15
Co (7)
Zr (8.5)
600
100
75.2
[98]
Co/Ce/SBA-15
Co (7)
Ce (8.5)
600
100
68.2
[98]
Co/La/SBA-15
Co (7)
La (8.5)
600
100
73.5
[98]
Co-SBA-15
Co (15)
650
85
75
[99]
Ni-SBA-15
Ni (15)
650
10
40
[99]
Co-MgO-SBA-15 Co (10)
Mg (5)
650
100
70
[99]
Ni-MgO-SBA-15 Ni (10)
Mg (5)
650
82
70
[99]
Co-Ni-SBA-15
Ni (5)
Co (10)
650
100
75
[99]
Co-Ni-SBA-15
(IMPG)
Ni (5)
Co (10)
650
100
52
[99]
Ni/Al 2 O 3
Ni (5)
650
87
96.25
[100]
Ni/Al 2 O 3
Ni (10)
650
90
98.5
[100]
Ni/Al 2 O 3
Ni (15)
650
95
100
[100]
Ni/Al 2 O 3
Ni (20)
650
88
98.75
[100]
Steam Reforming of Methanol, Ethanol and Glycerol over Catalysts with Mesoporous…