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Combustion characteristics and kinetics of anthracite with added chlorine
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Combustion characteristics and kinetics of anthracite with added chlorine
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Journal Article
Combustion characteristics and kinetics of anthracite with added chlorine
2017
Overview
The combustion process of Yangquan anthracite(YQ) with the addition of 0.045wt%, 0.211wt%, 1.026wt%, and 2.982wt% chlorine was investigated using a thermogravimetric method from an ambient temperature to 1173 K in an air atmosphere. Results show that the YQ combustion characteristics are not significantly affected by an increase in chlorine content. Data acquired for combustion conversion are then further processed for kinetic analysis. Average apparent activation energies determined using the model-free method(specifically the KAS method) are 103.025, 110.250, 99.906, and 110.641 k J/mol, respectively, and the optimal kinetic model for describing the combustion process of chlorine-containing YQ is the nucleation kinetic model, as determined by the z(α) master plot method. The mechanism function of the nucleation kinetic model is then employed to estimate the pre-exponential factor, by making use of the compensation effect. The kinetic models to describe chlorine-containing YQ combustion are thus obtained through advanced determination of the optimal mechanism function, average apparent activation energy, and the pre-exponential factor.
Publisher
University of Science and Technology Beijing,Springer Nature B.V,School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China,State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China%School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China%State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
