Jet Colliding and Mixing Efficiency.

Christophe Allemann,Gianni De Luca,Massimo Varisco,Richard-Emmanuel Estes

doi:10.2533/chimia.2021.1054

Abstract

Two experimental methods, the Nile Red dye extraction and the Williamson ether synthesis in biphasic conditions, were used to characterize the mixing performance of a new cheap impinging jet colliding mixer from Gjosa and to compare it to other commercial micromixers (Caterpillar CPMM-R300, T-mixer, LTF MR-MX and LTF MR-MS). The Nile Red method shows that the Caterpillar mixer is the best one. Excellent results are also achieved with two Gjosa mixers in series. These results are not reflected in the Williamson ether synthesis, where the best mixer is the Gjosa one.

Highlights

Two experimental methods, the Nile Red dye extraction and the Williamson ether synthesis in biphasic conditions, were used to characterize the mixing performance of a new cheap impinging jet colliding mixer from Gjosa and to compare it to other commercial micromixers (Caterpillar CPMM-R300, T-mixer, LTF MR-MX and LTF MR-MS)
Since no chemical reaction is involved in this method, it is possible to exactly follow the mass transfer without concerns about reaction kinetics.[11]
The mixing efficiencies of T-mixers, LTF MR-MX and MR-MS,[14] Caterpillar CPMM-R300[6] are compared with the new impinging jet colliding mixers developed by Gjosa[15] (Fig. 3). 2

Summary

Introduction

The Nile Red dye extraction and the Williamson ether synthesis in biphasic conditions, were used to characterize the mixing performance of a new cheap impinging jet colliding mixer from Gjosa and to compare it to other commercial micromixers (Caterpillar CPMM-R300, T-mixer, LTF MR-MX and LTF MR-MS). Several methods can be used like the Nile Red (Fig.1). We are using two biphasic methods to characterize the mixing provided by several static mixers: the Nile Red extraction[10] and the Williamson ether synthesis of 3 (Scheme 1).[12,13] The mixing efficiencies of T-mixers, LTF MR-MX and MR-MS,[14] Caterpillar CPMM-R300[6] are compared with the new impinging jet colliding mixers developed by Gjosa[15] (Fig. 3).

Results

Conclusion