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.