Abstract
The hydrodynamic and gas mixing characteristics have been determined in a FCC regenerator (0.48 m I.D.x3.4 m high) with FCC particles. Solids holdup in the dense bed decreases with increasing gas velocity, but it increases in the freeboard region. The bubble/void fraction increases with an increase along the bed height at a given gas velocity and increases with increasing gas velocity at a constant bed height. Backmixed tracer gas at the wall region is higher than that at the center region of the bed. The gas backmixing coefficient decreases with increasing gas velocity.
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Namkung, W., Kim, S.W. & Kim, S.D. Hydrodynamic characteristics of a FCC regenerator. Korean J. Chem. Eng. 20, 110–115 (2003). https://doi.org/10.1007/BF02697194
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DOI: https://doi.org/10.1007/BF02697194