Method and device for performing chemical reactions with the...

B - Operations – Transporting – 01 – F

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B01F 5/04 (2006.01) B01F 5/02 (2006.01) B01F 5/06 (2006.01) B01F 13/00 (2006.01) B01J 19/00 (2006.01) B01J 19/24 (2006.01) F28D 9/00 (2006.01) F28F 3/04 (2006.01)

Patent

CA 2189783

In the proposed reaction process, at least two educts (A, B) are divided by their respective assemblies of microchannels (1a, 1b) into spatially separated fluid filaments. These fluid filaments then enter a common mixing and reaction chamber (4). It is essential that the fluid filaments of the two educts (A, B) are allowed to enter the mixing/reaction chamber (4) as free jets (6a, 6b), each free jet (6a) of an educt (A) being led into the mixing/reation chamber (4) immediately adjacent to a free jet (6b) of a different educt (B). Adjacent free jets then mix by diffusion and/or turbulence. This system significantly accelerates the mixing process by comparison with conventional reactors, and, with rapid chemical reactions, largely prevents the formation of unwanted by-products and secondary products.

Selon le procédé présenté, procédé qui permet la réalisation de réactions, au moins deux éduits (A, B) sont divisés par leur ensemble respectif de microcanaux (1a, 1b) en filets fluidiques séparés dans l'espace. Ces filets fluidiques entrent ensuite dans une chambre commune (4) de mélange et de réaction. Il est essentiel que les filets fluidiques des deux éduits (A, B) puissent entrer la chambre (4) de mélange et de réaction sous la forme de jets libres (6a, 6b), chaque jet libre (6a) d'un éduit (A) étant amené dans la chambre (4) de mélange et de réaction, dans la zone de proximité immédiate d'un jet libre (6b) d'un éduit différent (B). Des jets libres adjacents se mélangent ensuite par diffusion et/ou turbulence. Un tel système accélère nettement le processus de mélange, si l'on compare avec des réacteurs classiques. De plus, étant donné la rapidité des réactions chimiques, la formation de sous-produits et de produits secondaires non désirés est empêchée dans une large mesure.

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