Research Article
Hydrogen Production by Supercritical Water Gasification of Biomass with Homogeneous and Heterogeneous Catalyst
Table 6
Experimental results for different heterogeneous catalysts.
| Catalyst |
Gas yield (mmol/g feedstock) | CGE (%) | Gas composition (%) |
H2 | CO | CH4 | CO2 | H2 | CO | CH4 | CO2 |
| Noncatalytic | 2.86 | 2.19 | 1.71 | 6.48 | 23.16 | 21.60 | 16.54 | 12.92 | 48.94 | R-Ni, RH3110 | 9.57 | 1.63 | 12.11 | 16.18 | 66.73 | 23.92 | 4.07 | 30.26 | 40.43 | R-Ni, RH4110 | 8.34 | 1.04 | 10.61 | 15.10 | 59.66 | 23.55 | 2.94 | 29.95 | 42.64 | R-Ni, RH5110 | 10.78 | 1.38 | 9.41 | 13.00 | 53.07 | 31.18 | 3.99 | 27.22 | 37.60 | Olivine | 4.18 | 0.88 | 1.94 | 7.61 | 23.25 | 28.61 | 6.02 | 13.28 | 52.09 | Dolomite | 3.94 | 1.33 | 1.96 | 3.62 | 15.42 | 36.31 | 12.26 | 18.06 | 33.36 |
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Catalyst, 1 g; feedstock, 1 g peanut shell + 0.3 g CMC; water density, 0.071 g/cm3; reaction time, 20 min; pressure, 22~24.0 MPa.
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