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Korean Journal of Chemical Engineering, Vol.34, No.12, 3092-3101, 2017
A reaction kinetic study of CO2 gasification of petroleum coke, coals and mixture
Characteristics of Char-CO2 gasification were compared in the temperature range of 1,100-1,400
°C using a thermogravimetric analyzer (TGA) for petroleum coke, coal chars and mixed fuels (Petroleum coke/coal ratios: 0, 0.25, 0.5, 0.75, 1). The results showed that reaction time decreased with increasing gasification temperature, BET surface area and alkali index of coal. Mixed fuels composed of petroleum coke/coal exhibited reduced activation energies. Modified volumetric reaction model and shrinking core model might be suitably matched with experimental data depending on coal type and petroleum coke/coal ratio. Rate equations were suggested by selecting gas-solid reaction rate models for each sample that could simulate CO2 gasification behavior.
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[Cited By]
- Liu Y, Guan Y, Zhang K, Korean Journal of Chemical Engineering, 35(4), 859, 2018
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