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  • Hydrodynamic Simulation of Cyclone Separators

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    Author(s)
    Utikar, R.
    Darmawan, N.
    Tade, M.
    Li, Q
    Evans, G.
    Glenny, M.
    Pareek, V.
    Griffith University Author(s)
    Li, Qin
    Year published
    2010
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    Abstract
    Cyclone separators are commonly used for separating dispersed solid particles from gas phase. These devices have simple construction; are relatively inexpensive to fabricate and operate with moderate pressure losses. Therefore, they are widely used in many engineering processes such as dryers, reactors, advanced coal utilization such as pressurized and circulating fluidized bed combustion and particularly for removal of catalyst from gases in petroleum refinery such as in fluid catalytic cracker (FCC). Despite its simple operation, the fluid dynamics and flow structures in a cyclone separator are very complex. The driving ...
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    Cyclone separators are commonly used for separating dispersed solid particles from gas phase. These devices have simple construction; are relatively inexpensive to fabricate and operate with moderate pressure losses. Therefore, they are widely used in many engineering processes such as dryers, reactors, advanced coal utilization such as pressurized and circulating fluidized bed combustion and particularly for removal of catalyst from gases in petroleum refinery such as in fluid catalytic cracker (FCC). Despite its simple operation, the fluid dynamics and flow structures in a cyclone separator are very complex. The driving force for particle separation in a cyclone separator is the strong swirling turbulent flow. The gas and the solid particles enter through a tangential inlet at the upper part of the cyclone. The tangential inlet produces a swirling motion of gas, which pushes the particles to the cyclone wall and then both phases swirl down over the cyclone wall. The solid particles leave the cyclone through a duct at the base of the apex of the inverted cone while the gas swirls upward in the middle of the cone and leaves the cyclone from the vortex finder. The swirling motion provides a centrifugal force to the particles while turbulence disperses the particles in the gas phase which increases the possibility of the particle entrainment. Therefore, the performance of a cyclone separator is determined by the turbulence characteristics and particle-particle interaction.
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    Book Title
    Computational Fluid Dynamics
    Publisher URI
    http://dx.doi.org/10.5772/45638
    DOI
    https://doi.org/10.5772/7106
    Copyright Statement
    Copyright 2010 The Author(s). This is an open-access file distributed under the terms of the under CC BY 3.0 license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
    Subject
    Powder and Particle Technology
    Publication URI
    http://hdl.handle.net/10072/61651
    Collection
    • Book chapters

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