Fig. 9.
The fluidization behavior of the pellets. a Only the surface of the pellet35 mass is fluidized (33°C, 270 mL/s). b Pellet31 is slugging (31°C, 320 mL/s). c Pellet40 is stuck in the bottom of the straight part of the chamber (38°C, 300 mL/s)
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