Advances in Condensed Matter Physics / 2014 / Article / Tab 4

Research Article

Hydrogen Production by Supercritical Water Gasification of Biomass with Homogeneous and Heterogeneous Catalyst

Table 4

Experimental results for different homogeneous catalysts.

Catalyst Gas yield (mmol/g feedstock)CGE (%)Gas composition (%)
H2COCH4CO2H2COCH4CO2

Noncatalytic2.862.191.716.4823.1621.60 16.54 12.92 48.94
LiOH5.231.301.342.7211.9649.39 12.28 12.65 25.68
Na2CO33.141.431.425.4218.4627.52 12.53 12.45 47.50
NaOH3.510.781.634.8216.1332.68 7.26 15.18 44.88
K2CO35.641.082.555.0919.4439.28 7.52 17.76 35.45
KOH7.000.922.984.2218.1246.30 6.08 19.71 27.91
Ca(OH)26.661.881.813.3715.7548.54 13.70 13.19 24.56
ZnCl25.221.062.137.7224.3332.36 6.57 13.21 47.86

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.