Overview
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ABSTRACT
Microreactors, miniature continuous flow reactors, are used by the chemical industry to replace large farms by microstructures units (reactors, separators, heat exchangers, mixers, ...) connecting efficiency. safety and mobility.They enter the design of more effective synthesis processes. After a description of processes intensification and its principles, the article describes examples of microreactors and fine chemistry applications.
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Read the articleAUTHORS
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Clarisse MARIET: Research engineer - Direction de l'Énergie Nucléaire (DEN), Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, Gif sur Yvette, France
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Christine DALMAZZONE: Research engineer - Applied Physics, Chemistry and Mechanics Department - IFP Énergies nouvelles (IFPEN), Rueil-Malmaison, France
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Marie MARSIGLIA: Research engineer - Applied Physics, Chemistry and Mechanics Department - IFP Énergies nouvelles (IFPEN), Rueil-Malmaison, France
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Emmanuel MIGNARD: Research Manager - CNRS, Bordeaux University, Solvay, LOF, UMR 5258, Pessac, France
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Axel VANSTEENE: Doctoral student - Direction de l'Énergie Nucléaire (DEN), Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, Gif sur Yvette, France
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Laurent VIO: Research engineer - Direction de l'Énergie Nucléaire (DEN), Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, Gif sur Yvette, France
INTRODUCTION
The impact on the environment, in terms of waste and energy consumption, has become a major issue under the pressure of European regulations, in particular with the entry into force of REACH, the regulation on the Registration, Evaluation and Authorization of Chemicals. All this in an increasingly tough market, where production costs are becoming a determining factor. To meet these challenges and speed up research, research teams and industry are turning to microreactors. They are used to test different synthesis routes in parallel, experimental conditions or the determination of kinetic or physico-chemical data, with appreciable time savings.
But this new tool also opens up industrial prospects. Syntheses that were previously forbidden or difficult are now possible. Pharmaceutical laboratories are beginning to equip themselves, although this will take time, as the integration of microreactors at industrial level requires a complete overhaul of the entire process. The switch to microreactors is a cultural change. Thanks to their parallelization, they will enable us to move more quickly from a research and development (R&D) process to an industrial scale.
The article
Traditionally, chemical reactions take place in large vessels, producing large quantities of substances simultaneously. These bulky reactors have a number of drawbacks. It is difficult to achieve uniform mixing or a constant temperature, and the process has to be stopped regularly to empty the tank. What's more, chemical reactions are often developed on a laboratory scale, but several problems arise...
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KEYWORDS
miniaturization | screening | oil tank | industrial microreactor
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Unit operations. Chemical reaction engineering
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Microreactors: tools for intensifying chemistry
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