The present study analyzes the compositional lingo-cellulosic behaviour of different kinds of biomass. Five types of biomass were selected for this investigation: wheat straw, coconut husk, tea waste, coconut shell, and eucalyptus shell. This study found that only lignin content contributes to the heating value, then cellulose and hemicellulose. There is not a direct relationship between the heating value of biomass and the cellulose and hemicellulose content. However, because lignin has a 30% greater energy content than cellulose and hemicellulose, it directly impacts the biomass's heating value. Because lignin is the most stable and complex of the three biomass components, its concentration is thought to be the most important determining factor in the thermo-chemical process. All the samples exhibit three distinct peaks, namely, moisture loss at 70 °C, hemicellulose degradation at 300 °C, and maximal breakdown of the piece at 365 °C, as determined by DTG analysis.