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Reactivities of three chars with CO 2 and steam were examined using a Thermogravimetric Analyzer (TGA). Similarities and differences between kinetics of char–CO 2 gasification and char–steam gasification have been discussed. As a result, for both reactions, the measured gasification rate increases with temperature and decreases as the particle size increases. And the initial rate of...
CO 2 gasification with different coals and a petroleum coke from China were performed in a thermogravimetric analyzer (TGA). Initial gasification rates of these sample chars were measured at different gasification temperatures (850–1300°C) and four particle sizes (<40, ∼100, ∼250, and ∼500μm). An nth-order model was used to describe the gasification kinetics. It is found that the measured...
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