Table 3 Production and element composition of the bio-coals.

BiomassBio-coal yield
(%)
C (%)H (%)N (%)S (%)O* (%)Mass energy
density
(MJ kg−1)
Rice husk45.264.825.881.110.7727.4225.4
Saw dust37.270.405.850.160.6222.9728.0
Wheat33.969.826.051.280.5122.3428.2
Bagasse41.867.655.710.230.3726.0426.3
Soybean34.367.136.481.550.4424.4027.6

*By difference.