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Co-firing of biomass with coals Part 1. Thermogravimetric kinetic analysis of combustion of fir (abies bornmulleriana) wood

Dumanlı, Ahu Gümrah and Taş, Sinem and Yürüm, Yuda (2011) Co-firing of biomass with coals Part 1. Thermogravimetric kinetic analysis of combustion of fir (abies bornmulleriana) wood. Journal of Thermal Analysis and Calorimetry, 103 (3). pp. 925-933. ISSN 1388-6150

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Official URL: http://dx.doi.org/10.1007/s10973-010-1126-9

Abstract

The chemical composition and reactivity of fir (Abies bornmulleriana) wood under non-isothermal thermogravimetric (TG) conditions were studied. Oxidation of the wood sample at temperatures near 600 A degrees C caused the loss of aliphatics from the structure of the wood and created a char heavily containing C-O functionalities and of highly aromatic character. On-line FTIR recordings of the combustion of wood indicated the oxidation of carbonaceous and hydrogen content of the wood and release of some hydrocarbons due to pyrolysis reactions that occurred during combustion of the wood. TG analysis was used to study combustion of fir wood. Non-isothermal TG data were used to evaluate the kinetics of the combustion of this carbonaceous material. The article reports application of Ozawa-Flynn-Wall model to deal with non-isothermal TG data for the evaluation of the activation energy corresponding to the combustion of the fir wood. The average activation energy related to fir wood combustion was 128.9 kJ/mol, and the average reaction order for the combustion of wood was calculated as 0.30.

Item Type:Article
Uncontrolled Keywords:Co-firing; Combustion; Thermogravimetric analysis; Non-isothermal kinetics; Activation energy of combustion
Subjects:T Technology > TP Chemical technology
ID Code:16418
Deposited By:Yuda Yürüm
Deposited On:22 Mar 2011 11:32
Last Modified:25 May 2011 14:15

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