Thermogravimetric Analysis of Different Biomass Materials and the Primary Biomass Components

Abstract:

Thermogravimetric analysis (TGA) was employed to study the pyrolysis and combustion characteristics of three primary biomass components (cellulose, xylan and lignin) and seven different biomass materials under both of nitrogen and air atmosphere. Based on the experimental results, the pyrolysis and combustion kinetics were calculated. The results indicated that the three primary biomass components exhibited different decomposition characteristics and pyrolysis kinetics. Xylan was the least thermal stable component, while the lignin would form much more solid residues than the cellulose and xylan under the nitrogen atmosphere. Moreover, the pyrolytic devolatilization process of the cellulose had high activation energy, so was the char combustion process of the lignin. The seven biomass materials showed similar pyrolysis characteristics, and poplar wood exhibited high activation energy values in both of pyrolysis and combustion processes.

• Periodical: Applied Mechanics and Materials (Volumes 260-261)
• Pages: 187-191
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.260-261.187
• Online since: December 2012
• Authors: Ya Bo Li, Xu Ming Zhang, Lei Qiang Zhao, Qiang Lu, Chang Qing Dong
• Keywords: Biomass, Kinetic Calculation, Thermogravimetric Analysis (TGA)

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