Metastable control of cooling crystallisation

Linh T. T. Vu, Jim Hourigan, Robert W. Sleigh, H. Ming Ang, Moses O. Tade

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    The paper studies the metastable control of cooling slow- and fast-growth crystalline compounds, which have: low solubility at 25°C, high solubility parameters and a detectable metastable zone. Nyvlt's and alternative methods are applied to measure the metastable limits. An optimal control problem is developed in GAMS and solved for the optimal cooling temperature set points. Various cooling and seeding strategies are implemented in a laboratory-scale crystalliser to compare the yields and Crystal Size Distributions (CSD). For both compounds, slow cooling with initial fine seeds is the optimal crystallisation strategy in batches, which can achieve the highest yield and the narrowest range of particle size. The successful laboratory-scale results will lead to further pilot- and industrial-scale investigations.
    Original languageEnglish
    Title of host publicationEuropean Symposium on Computer Aided Process Engineering 13 : 36th European Symposium of the Working Party on Computer Aided Process Engineering : ESCAPE-13, 1-4 June, 2003, Lappeenranta, Finland
    PublisherElsevier Science
    Number of pages6
    ISBN (Print)044451368X
    Publication statusPublished - 2003
    EventEuropean Symposium on Computer Aided Process Engineering -
    Duration: 1 Jan 2005 → …

    Conference

    ConferenceEuropean Symposium on Computer Aided Process Engineering
    Period1/01/05 → …

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