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  • Impact of Metal Ridging on the Fluidization Characteristics of FCC Catalyst.

    Author(s)
    Whitcombe, JM
    Agranovski, IE
    Braddock, RD
    Griffith University Author(s)
    Braddock, Roger D.
    Agranovski, Igor E.
    Year published
    2002
    Metadata
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    Abstract
    Minimum fluidization and bubbling velocities were used to compare the fluidity of FCC catalyst sourced from various refineries. It was found that fluidity characteristics of the catalyst of the same original type change after some period of use in the FCCU. Under closer examination using Scanning Electron Microscopy (SEM), large surface ridging of metal contaminates, was identified on the used catalyst. Mild bubbling attrition tests were conducted, and it was found that all of the catalyst experienced an increase in fluidity. Using total levels of iron, it was discovered that it is the quantity of metal ridging that is ...
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    Minimum fluidization and bubbling velocities were used to compare the fluidity of FCC catalyst sourced from various refineries. It was found that fluidity characteristics of the catalyst of the same original type change after some period of use in the FCCU. Under closer examination using Scanning Electron Microscopy (SEM), large surface ridging of metal contaminates, was identified on the used catalyst. Mild bubbling attrition tests were conducted, and it was found that all of the catalyst experienced an increase in fluidity. Using total levels of iron, it was discovered that it is the quantity of metal ridging that is important and not the total levels of metals which influence fluidizing characteristics. This work provides insight into what causes changes to fluidizing characteristics inside an operation FCCU.
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    Journal Title
    Chemical Engineering & Technology
    Volume
    25
    Publisher URI
    https://onlinelibrary.wiley.com/doi/10.1002/1521-4125%2820021008%2925%3A10%3C981%3A%3AAID-CEAT981%3E3.0.CO%3B2-F
    DOI
    https://doi.org/10.1002/1521-4125(20021008)25:10<981::AID-CEAT981>3.0.CO;2-F
    Copyright Statement
    © 2002 John Wiley & Sons, Ltd. Self-archiving of the author-manuscript version is not yet supported by this publisher. Please refer to the journal link for access to the definitive, published version or contact the author for more information.
    Subject
    Chemical engineering
    Mechanical engineering
    Publication URI
    http://hdl.handle.net/10072/6708
    Collection
    • Journal articles

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