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- W203488997 abstract "This chapter discusses a study to investigate the effect of post carbonization heat treatment on the structure and reactivity of entrained flow reactor (EFR) chars. Three coals were used in this study and these had a wide range of rank to cover the range of reactivities found in EFR chars. Coal with particle size fraction (38–75 μm) was pyrolyzed in an EFR in a nitrogen atmosphere at 1000°C. Char combustion (burn out) studies were carried out in air at 1000°C. The reactivity of the chars in air at 500°C was measured using a Stanton Redcroft ST780 thermogravimetric instrument. Thermograms for each char had a rectilinear portion where maximum reactivity was observed. This part of the burn-off curves was used to calculate the reactivity parameter. The volatile matter content of the chars was determined by heat treating the sample in nitrogen and monitoring the weight-loss using the Stanton Redcroft ST780 thermogravimetric instrument. The post carbonization heat treatment of EFR chars produced at a nominal temperature of 1000°C resulted in loss of volatile matter." @default.
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- W203488997 date "1991-01-01" @default.
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- W203488997 title "COAL CHAR REACTIVITY AND BURN-OFF" @default.
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- W203488997 doi "https://doi.org/10.1016/b978-0-7506-0387-4.50071-1" @default.
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