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Cooling Crystallization with Complex Temperature Profiles on a Quasi-Continuous and Modular Plant. Processes (Basel) 2022. [DOI: 10.3390/pr10061047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Volatile markets and increasing demands for quality and fast availability of specialty chemical products have motivated the rise of small-scale, integrated, and modular continuous processing plants. As a significant unit operation used for product isolation and purification, cooling crystallization is part of this trend. Here, the small-scale and integrated quasi-continuous filter belt crystallizer (QCFBC) combines cooling crystallization, solid-liquid separation, and drying on a single apparatus. This contribution shows the general working principle, different operation modes, and possibilities of temperature control with the modular setup. For precise temperature control in cooling crystallization, Peltier elements show promising results in a systematic study of different operation parameters. Sucrose/water was used as a model substance system. The results confirm that seed crystal properties are the most important parameter in crystallization processes. Additionally, an oscillating temperature profile has a narrowing effect on the crystal size distribution (CSD). The integrated, small-scale, and modular setup of the QCFBC offers high degrees of flexibility, process control, and adaptability to cope with future market demands.
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Schmalenberg M, Mensing L, Lindemann S, Krell T, Kockmann N. Miniaturized draft tube baffle crystallizer for continuous cooling crystallization. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.12.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Sonnenschein J, Wohlgemuth K. Archimedes tube crystallizer: Design and characterization for small-scale continuous crystallization. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.12.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Schmalenberg M, Krell T, Mathias C, Kockmann N. Continuous Miniaturized Draft Tube Baffle Crystallizer with Particle Screw for Supportive Suspension Discharge. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mira Schmalenberg
- BCI Equipment Design, TU Dortmund University, Emil-Figge-Straße 68, 44227 Dortmund, Germany
| | - Tobias Krell
- BCI Equipment Design, TU Dortmund University, Emil-Figge-Straße 68, 44227 Dortmund, Germany
| | - Christopher Mathias
- BCI Equipment Design, TU Dortmund University, Emil-Figge-Straße 68, 44227 Dortmund, Germany
| | - Norbert Kockmann
- BCI Equipment Design, TU Dortmund University, Emil-Figge-Straße 68, 44227 Dortmund, Germany
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