Catalyst fracture due to thermal shock in fluidized catalytic cracker units

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Title Catalyst fracture due to thermal shock in fluidized catalytic cracker units
Author Whitcombe, Joshua Matthew; Agranovski, Igor E; Braddock, Roger David; Gandola, Franck; Hammond, A.P.
Journal Name Chemical Engineering Communications
Year Published 2004
Place of publication Abingdon, UK
Publisher Taylor & Francis Ltd
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 600°C and 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.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 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.
Volume 191
Issue Number 11
Page from 1401
Page to 1416
ISSN 0098-6445
Date Accessioned 2005-03-30
Language en_AU
Faculty Faculty of Environmental Sciences
Subject PRE2009-Science & Technology
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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