Authors: | Schmalenberg, Mira Weick, Lena K. Kockmann, Norbert |
Title: | Nucleation in continuous flow cooling sonocrystallization for coiled capillary crystallizers |
Language (ISO): | en |
Abstract: | Nucleation in continuously operated capillary coiled cooling crystallizers is experimentally investigated under the influence of ultrasound. It was found that there is no sharp boundary but rather a transition zone for nucleation under sonication. For this purpose, a tube with an inner diameter of 1.6 mm and a length of 6 m was winded in a coiled flow inverter (CFI) design and immersed into a cooled ultrasonic bath (37 kHz). The CFI design was chosen for improved radial mixing and narrow residence time distribution, which is also investigated. Amino acid l-alanine dissolved in deionized water is employed in a supersaturation range of 1.10 to 1.46 under quiet and sonicated conditions. Nucleation is non-invasive detected using a flow cell equipped with a microscope and camera. |
Subject Headings: | Coiled flow inverter Continuous nucleation Cooling crystallization Minichannel Capillary flow Non-invasive nucleation detection Sonocrystallization |
Subject Headings (RSWK): | Wechselrichter Kühlungskristallisation Kapillarströmung |
URI: | http://hdl.handle.net/2003/40136 http://dx.doi.org/10.17877/DE290R-22011 |
Issue Date: | 2021-03-24 |
Rights link: | https://creativecommons.org/licenses/by/4.0/ |
Appears in Collections: | Arbeitsgruppe Apparatedesign |
Files in This Item:
File | Description | Size | Format | |
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Schmalenberg2021_Article_NucleationInContinuousFlowCool.pdf | 1.37 MB | Adobe PDF | View/Open |
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