Abstract
Coal devolatilization is numerically investigated by drop tube furnace and a coal pyrolysis model (Fragmentation and Diffusion Model). The fractal characteristics of coal and char pores are investigated. Gas diffusion and secondary reactions in fractal pores are considered in the numerical simulations of coal devolatilization, and the results show that the fractal dimension is increased firstly and then decreased later with increased coal conversions during devolatilization. The mechanisms of effects of fractal pores on coal devolatilization are analyzed.
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Acknowledgements
The work is financially supported from National Natural Science Foundation of China (No.50976055) and China Special Funds for Major State Basic Research Projects (No.2006CB200305).
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Chen, Y., Wang, X., Cao, L., He, R. (2013). Effects of Fractal Pore on Coal Devolatilization. In: Qi, H., Zhao, B. (eds) Cleaner Combustion and Sustainable World. ISCC 2011. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30445-3_26
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DOI: https://doi.org/10.1007/978-3-642-30445-3_26
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