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Co-firing of biomass with coals: part 2. thermogravimetric kinetic analysis of co-combustion of fir (abies bornmulleriana) wood with Beypazari lignite

Taş, Sinem and Yürüm, Yuda (2012) Co-firing of biomass with coals: part 2. thermogravimetric kinetic analysis of co-combustion of fir (abies bornmulleriana) wood with Beypazari lignite. Journal of Thermal Analysis and Calorimetry, 107 (1). pp. 293-298. ISSN 1388-6150

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Official URL: http://dx.doi.org/10.1007/s10973-010-1281-z

Abstract

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.

Item Type:Article
Uncontrolled Keywords:Combustion; Coal-wood blends; Thermogravimetric analysis; Non-isothermal kinetics
Subjects:T Technology > TP Chemical technology > TP0155-156 Chemical engineering
ID Code:17840
Deposited By:Yuda Yürüm
Deposited On:01 Jan 2012 21:54
Last Modified:30 Jan 2012 10:48

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