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The Relevance of Macerals in the Combustion of a Coal Char in the Chemical Kinetic Regime

机译:The Relevance of Macerals in the Combustion of a Coal Char in the Chemical Kinetic Regime

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The combustion of fine char particles obtained by devolatilization of a bituminous coal has been investigated by means of a TGA apparatus. The coal tested belongs to a class of coals showing a notably high content of macerals of inertinite group compared to those of vitrinite group. Carbon conversion rate vs burn off profiles have been obtained at temperatures ranging from 380 to 460#xB0;C and oxygen partial pressures in the interval 0.21 to 1 bar. Under conditions tested combustion took place in the chemical kinetic controlled regime. Kinetic parameters have been obtained by regression analysis of experimental data.

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