Solids handling for intensified process technology

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Solids handling for intensified process technology ( solids-handling-intensified-process-technology )

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IbD PU Deliverable 3.1 sizes (approximately 0.2 μm) were found to be favoured at high supersaturation ratios of 4483 (0.1 M) with conversion to product in the range of 30-40%. A continuous flow microreactor with an internal diameter of 0.8 mm and a length of 200 cm was used in the study of Appalakutti et al. (2015) for process intensification of copper chromite nanoparticle production. In their research, the particle size of the production in the microreactor was found to be smaller (in the range 192-300 nm) than in the other co-precipitation methods. In addition to a higher heat transfer coefficient than the conventional reactor, the microreactor also reduced the duration of the calcination process in the synthesis process. Regular co- precipitation methods took 6 hours to form particles with another 1 hour for hot drying to produce copper chromite, while the microreactor only required 1 hour of heating followed by 2 hours calcination duration. Kundu et al. (2011) was the first to use a continuous flow microreactor with Candida Antarctica Lipase B (CAL B) immobilized solid beads (macroporous polymethyl methacrylate) filled in the micro-channels for a solid-supported enzyme-catalyzed polymerization reaction Figure 51. A novel versatile microreactor with a uniform heating stage which enabled changes in the reaction conditions and faster product formation was designed and used to perform heterogeneous reactions in continuous mode. The microreactor was made of aluminum and covered with Kapton film. Based on their study, the microreactor operating in continuous flow mode could be extended to other enzyme-based systems. Figure 51. Schematic and photograph of the microreactor setup in the study (Kundu et al., 2011). 6.2 Catalytic plate reactor The catalytic plate reactor (CPR) offers a route for direct heat supply from an exothermic reaction to an endothermic reaction, which is vital in intensifying many important chemical 50

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