Abstract
Spout-fluid beds find a widespread application in the process industry for efficient
contacting of large particles with a gas. Since the spout-fluid bed configuration allows
for the introduction of a liquid, spout-fluid beds are used for both coating and
granulation applications, for example in the fertilizer industry. In this application, the
spout-fluid bed has the advantage of producing strong granules over a wide range of
particle sizes. However, the particle size distribution obtained in spout-fluid beds can
be relatively wide resulting in large recycling requirements.
The objective of this thesis is to improve the control over the particle size distribution
resulting from spout-fluid bed granulation by gaining insight into the underlying
fundamental processes. As detailed experiments in operating granulators are virtually
impossible, it was decided to adopt a modeling approach. Since the flow behavior
inside the spout-fluid bed was considered to be most critical, the modeling efforts
were focused on the hydrodynamics.
Original language | English |
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Awarding Institution |
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Supervisors/Advisors |
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Award date | 19 May 2006 |
Place of Publication | Enschede |
Publisher | |
Print ISBNs | 978-90-365-2371-4 |
Publication status | Published - 19 May 2006 |
Keywords
- IR-69326