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  • Catalyst fracture due to thermal shock in fluidized catalytic cracker units

    Author(s)
    Whitcombe, JM
    Agranovski, IE
    Braddock, RD
    Gandola, F
    Hammond, AP
    Griffith University Author(s)
    Braddock, Roger D.
    Agranovski, Igor E.
    Year published
    2004
    Metadata
    Show full item record
    Abstract
    The formation of fines in a fluidized catalytic cracker unit (FCCU) due to catalyst attrition and fracture is a major source of catalyst loss. In addition to standard attrition tests described in the literature, the possibility that thermal conditions could lead to catalyst fracture and fines production has been explored. Samples of fresh and used (equilibrium or e-cat) type catalysts were heated up to 600àand mixed with cold samples to determine the impact of thermal shock on particle stability. It was found that significant fracture occurs under these conditions, leading to loss of larger catalyst particles in the bed and ...
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    The formation of fines in a fluidized catalytic cracker unit (FCCU) due to catalyst attrition and fracture is a major source of catalyst loss. In addition to standard attrition tests described in the literature, the possibility that thermal conditions could lead to catalyst fracture and fines production has been explored. Samples of fresh and used (equilibrium or e-cat) type catalysts were heated up to 600àand mixed with cold samples to determine the impact of thermal shock on particle stability. It was found that significant fracture occurs under these conditions, leading to loss of larger catalyst particles in the bed and significant gain in the amount of fine particles. Agglomeration of particles was also evident, in some cases leading to an increase in the quantity of larger particles appearing to be present in the catalyst sample.
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    Journal Title
    Chemical Engineering Communications
    Volume
    191
    Issue
    11
    Publisher URI
    http://www.tandf.co.uk/journals/titles/00986445.html
    DOI
    https://doi.org/10.1080/00986440490464165
    Copyright Statement
    © 2004 Taylor & Francis : The author-version of this article will be available for download [12-18 months] after publication : Use hypertext link for access to the publisher's version.
    Subject
    Chemical engineering
    History, heritage and archaeology
    Publication URI
    http://hdl.handle.net/10072/5218
    Collection
    • Journal articles

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