PAPER TITLE :COMPARATIVE THERMAL HEATING BEHAVIOUR OF SELECTED LIGNOCELLULOSIC BIOMASS AND THEIR MODEL CONSTITUEN

JOURNAL Of SUSTAINABLE TECHNOLOGY | VOLUME 1 NUMBER 5 2014

Paper Details

  • Author(s) : 1LASODE, O.A., *2BALOGUN, A.O. and 3MCDONALD, A.G.
  • Abstract:

Hardwood (Albizia pedicellaris and Terminalia ivorensis) and non-woody (Sorghum
bicolor) biomass resources from Nigeria and biomass model constituents (xylan, glucommannan,
cellulose, and lignin) were subjected to isothermal heating at 275 and 297°C using a
Thermogravimetric analyser (TGA). Xylan, a hardwood hemicellulose, had a higher mass loss of
68% at 275°C, while lignin was the least degraded at both temperatures. The rate of decomposition
for all the biomass samples for the initial 20 min run into the TGA were similar as temperature was
ramped from ambient to isothermal temperature. At isothermal heating, the thermal decomposition
profile was influenced by variation in biomass composition. Temperature also played a major role
as there was an increase in weight loss at an isothermal temperature of 297°C.