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Influence of Shear Flow on the Crystallization of Organic Melt Emulsions – A Rheo‐Nuclear Magnetic Resonance Investigation

Kaysan, Gina; Spiegel, Burkard; Guthausen, Gisela; Kind, Matthias

Abstract:
There is a need to better understand the influence of shear flow on the crystallization of a molten oil phase in an oil/water emulsion due to its high relevance for industrial processes. The present study focuses on the influence of laminar shear flow on the crystallization kinetics of polydisperse n ‐hexadecane‐in‐water emulsions. The investigation was carried out by rheo‐nuclear magnetic resonance (NMR) spectroscopy in a Taylor‐Couette geometry. An accelerating impact of the shear rate on the overall crystallization kinetics was verified. This effect stems from an increase of the collision frequency of already crystallized droplets with not yet crystallized droplets. Nevertheless, the collision efficiency decreased with higher shear rate.

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Verlagsausgabe §
DOI: 10.5445/IR/1000120316
Veröffentlicht am 19.06.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Engler-Bunte-Institut (EBI)
Institut für Mechanische Verfahrenstechnik und Mechanik (MVM)
Institut für Thermische Verfahrenstechnik (TVT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 0930-7516, 1521-4125
KITopen-ID: 1000120316
Erschienen in Chemical engineering & technology
Verlag Wiley
Seiten ceat.202000193
Vorab online veröffentlicht am 27.05.2020
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Web of Science
Scopus
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