Projekt

CFD of continuous crystallization in a plug flow reactor

Udbyder

Vejleder

Sted

København og omegn

Some of the current major challenges in continuous industrial crystallization processes at production scale originate from the slow responses of controlled variables and from imperfect mixing due to the large size of the crystallization equipment. This gives rise to spatial variations of temperature, solute concentration and particle size distribution, and makes it difficult to control the different crystallization phenomena including nucleation, growth, attrition and agglomeration. This may result in a final product that does not fulfil the specified requirements of crystal size distribution, shape or yield.

As a solution to this, it has recently been suggested to carry out the crystallization in a continuous fashion, using a plug-flow reactor. Before this crystallization equipment can be constructed, the plug-flow reactor needs to be designed and process variables decided, including the impeller design, impeller speed etc. These decisions must be taken in such a way, that one gets the desired combination of radial mixing, plug-flow, and flow of solids (crystals).

In this project, one needs to develop a computational fluid dynamic (CFD) model in order to characterize the flow conditions and mixing behavior within the plug-flow reactor. While designing the reactor, knowledge of the flow patterns, particularly with respect to the type of impeller, will be essential in achieving more efficient mixing throughout the reactor. In the next step, the developed model will be used to evaluate different designs and configurations of the crystallizer. The analysis of the results should give a practical guideline to optimize the reactor and the process operating conditions which can be tested and implemented later on the physical lab unit. 

I samarbejde med

Tannaz Tajsoleiman (tantaj@kt.dtu.dk)

Forudsætninger

General knowledge about CFD / Good knowledge of transport phenomena / Knowledge of crystallization processes is considered as a plus

Søg i opslag
Kontakt

Virksomhed/organisation

DTU Kemiteknik

Navn

Krist V. Gernaey

Stilling

Professor

Mail

kvg@kt.dtu.dk

Vejleder-info

Kandidatuddannelsen i Kemisk og Biokemisk Teknologi

Vejleder

Krist V. Gernaey

ECTS-point

30 - 35

Type

Kandidatspeciale

OM DTU

DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet. 10.000 studerende uddanner sig her til fremtiden, og 5.700 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

Find os her

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby


45 25 25 25

dtu@dtu.dk

CVR-nr. 30 06 09 46

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