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This work assesses the solids circulation rate in a circulating fluidized bed cold model based on measuring the particles mean residence time (τ). The tracking method detects fluid-dynamically similar ferromagnetic tracer particles, and is based on inductance changes of a coil due to changes in the concentration of ferromagnetic particles in its core. A section of the model was selected to perform...
The redistribution of solids in a counter‐current circulating fluidized bed (CFB) by effect of ring‐type internals was investigated in a downscaled cold‐flow model. The system consists of two interconnected CFB reactors, in which the primary reactor operates like a common riser while the secondary reactor operates in counter‐current. The unit works without circulation rate control devices and the...
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