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 language | English |
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Title of host publication | European 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 |
Publisher | Elsevier Science |
Number of pages | 6 |
ISBN (Print) | 044451368X |
Publication status | Published - 2003 |
Event | European Symposium on Computer Aided Process Engineering - Duration: 1 Jan 2005 → … |
Conference
Conference | European Symposium on Computer Aided Process Engineering |
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Period | 1/01/05 → … |