Co-firing of biomass with coals Part 2. Thermogravimetric kinetic analysis of co-combustion of fir (Abies bornmulleriana) wood with Beypazari lignite

• Published in: Journal of thermal analysis and calorimetry Vol. 107; no. 1; pp. 293 - 298
• Main Authors: Tas, Sinem, Yurum, Yuda
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 2012; Springer
• Subjects: Analysis; Analytical Chemistry; Applied sciences; Chemistry; Chemistry and Materials Science; Combustion; Combustion. Flame; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Inorganic Chemistry; Lignite; Measurement Science and Instrumentation; Miscellaneous; Physical Chemistry; Polymer Sciences; Theoretical studies. Data and constants. Metering; Coal–wood blends; Combustion; Thermogravimetric analysis; Non-isothermal kinetics; Wood; Thermogravimetry; Biomass; Lignite; Abies; Gymnospermae; Coal; Non isothermal condition; Co-combustion; Coal-wood blends; Coniferales; Spermatophyta; Thermal analysis; Kinetics
• ISSN: 1388-6150; 1588-2926; 1572-8943
• DOI: 10.1007/s10973-010-1281-z

The combustion of coal and coal/fir (
Abies bornmulleriana
) wood blends at the proper ratio (20, 40, 50 wt%) was investigated with thermogravimetric analysis (TG). The influence of biomass blends on thermal and kinetic behavior of coal was studied under non-isothermal conditions. The activation energy of the samples was evaluated with the Ozawa–Flynn–Wall model which compares the combustion of these biowastes with coal under non-isothermal conditions. Our research found that blending influences activation energy of coal; moreover, activation energy related to 50 wt% blend was more similar to pure wood combustion than to coal combustion. Therefore, the activation energy profile shifted from 80.6 to 169.3 kJ/mol. The average reaction order of the samples ranged from 0.13 to 0.35.