Evaluation of Carbonisation Gas from Coal and Woody Biomass and Reduction Rate of Carbon Composite Pellets

Table 5

Comparison of activation energies for various carbonaceous materials.

Carbonaceous material	Activation energy Ea (kJ/mol)
Graphite	217 [16]
Bintyo char	182 [16]
Bamboo char	181 [16]
Coke	200 [16]
Glassy carbon	211 [16]
Activated carbon	149 [16]
Semicharcoal at Tc,max = 823 K	138
Semicharcoal at Tc,max = 1073 K	139
Semicharcoal at Tc,max = 1273 K	162
Semichar at Tc,max = 1073 K	174
Coke	219

Present work (by gasification experiments), where the semicharcoal was obtained from Japanese cypress and semichar from Newcastle blend coal (Table 1), and the analyses of the coke are shown in Table 6.