469323 A Multiphase Semi-Flow Microreactor to Study the Influence of Water on Organometalic Catalysis
In the present study, the role of water was analyzed using a 3D Raman spectrum chemical map of the reaction progression and species transfer. Regarding the reaction progression, the microreactor was divided in several points, and the reaction yield was acquired and treated using MatLab. For the mass transfer, both phases were trapped in a semi-flow reactor, and the species transfer were measured using image analysis tools, such as ImageJ, and Raman spectroscopy. The mass transfer measurements were validated using benchmark cases: gas-liquid and liquid-liquid.
The reaction experimental results obtained were compared with batch and flow experiments from literature (also performed in aqueous medium). In one hand, microfluidic reaction intensification experiments have shown that the reaction is often limited by mass transfer at the mili-scale. In the other hand, mass transfer experiments (indirect measurement of the molecular diffusivity) have allowed us to understand were the reaction is performed and to define the role of water in a reaction/separation process.
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