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Frede TA, Hofe NV, Reuß RJ, Kemmerling N, Kock T, Herbstritt F, Kockmann N. Design and characterization of a flow reaction calorimeter based on FlowPlate® Lab and Peltier elements. REACT CHEM ENG 2023. [DOI: 10.1039/d2re00565d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Microscale flow reaction calorimeter based on commercially available hastelloy C-22 microreactor for isoperibolic and isothermal operation mode.
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Affiliation(s)
- Timothy A. Frede
- Laboratory of Equipment Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Nils vom Hofe
- Laboratory of Equipment Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Rafael Jasper Reuß
- Laboratory of Equipment Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Niklas Kemmerling
- Laboratory of Equipment Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Tobias Kock
- Laboratory of Equipment Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Frank Herbstritt
- Ehrfeld Mikrotechnik GmbH, Mikroforum Ring 1, 55234 Wendelsheim, Germany
| | - Norbert Kockmann
- Laboratory of Equipment Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
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Measuring Kinetics in Flow Using Isoperibolic Flow Calorimetry. REACTIONS 2022. [DOI: 10.3390/reactions3040035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Continuous flow calorimeters are a promising tool in process development and safety engineering, particularly for flow chemistry applications. An isoperibolic flow calorimeter is presented for the characterization of exothermic reactions. The calorimeter is adapted to commercially available plate microreactors made of glass and uses Seebeck elements to quantify the heat of reaction. For automation of calibration procedures and calorimetric measurements, the device is connected to a lab automation system. Reaction enthalpy of exothermic reactions is determined via an energy balance of the entire calorimeter. Characterization of reaction kinetics is carried out via a local balancing of the individual Seebeck elements without changing the experimental setup, while using the previous measurements and additional ones at higher flow rates. The calorimeter and the associated measurement procedures were tested with the oxidation of sodium thiosulfate using hydrogen peroxide. Reaction enthalpy was determined to be 594.3 ± 0.7 kJ mol−1, which is within the range of literature values.
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Frede TA, Maier MC, Kockmann N, Gruber-Woelfler H. Advances in Continuous Flow Calorimetry. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00437] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Timothy Aljoscha Frede
- Department of Biochemical and Chemical Engineering, TU Dortmund University, 44227 Dortmund, Germany
| | - Manuel C. Maier
- Institute of Process and Particle Engineering, Graz University of Technology, 8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), 8010 Graz, Austria
| | - Norbert Kockmann
- Department of Biochemical and Chemical Engineering, TU Dortmund University, 44227 Dortmund, Germany
| | - Heidrun Gruber-Woelfler
- Institute of Process and Particle Engineering, Graz University of Technology, 8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), 8010 Graz, Austria
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