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http://hdl.handle.net/1942/34565
Title: | Characterization method for mass mixing in batch reactors based on temperature profiles | Authors: | CAMPS, Lennart Groth, Urs MOENS, Luc Kuhn, Simon BRAEKEN, Leen THOMASSEN, Leen |
Issue Date: | 2020 | Publisher: | Source: | Chemical engineering research & design, 156 , p. 300 -310 | Abstract: | Measuring mass mixing in batch reactors is of great interest to prevent yield losses during scale-up of reactions. In this work, we present a novel tool to accomplish this: the heat pulse method. This is a thermal-based technique consisting of a local heat pulse, applied electrically or by a hot liquid injection, during 10 s at a power of 5-15 W and subsequent measurement of temperature increase at locations of interest. The 95% mixing time from corrected and smoothed temperature profile characterizes heat mixing. A heat mixing model identifies the contributions of thermal conduction and convection and hereby relates local heat and mass mixing in a 800 mL in a 1 L batch reactor with a 45 degrees 4 blade downward pitched turbine. The heat pulse method is applicable on different reactors, solvent independent and non-destructive. Experiments are repeatable and mixing at reactive circumstances can be mimicked. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. | Document URI: | http://hdl.handle.net/1942/34565 | ISSN: | 0263-8762 | e-ISSN: | 1744-3563 | DOI: | 10.1016/j.cherd.2020.02.004 | ISI #: | WOS:000528192600027 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Camps_manuscript.pdf | Peer-reviewed author version | 956.23 kB | Adobe PDF | View/Open |
1-s2.0-S0263876220300617-main.pdf Restricted Access | Published version | 1.01 MB | Adobe PDF | View/Open Request a copy |
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