Comparison of micromixer with conventional static mixer for use in fast compeititive reactions

James Palmer; Lixiao Zeng; Roy Penney

doi:10.1117/12.443064

28 September 2001 Comparison of micromixer with conventional static mixer for use in fast compeititive reactions

James Palmer, Lixiao Zeng, Roy Penney

Proceedings Volume 4560, Microfluidics and BioMEMS; (2001) https://doi.org/10.1117/12.443064
Event: Micromachining and Microfabrication, 2001, San Francisco, CA, United States

Abstract

The product distribution of fast-competitive reactions is a function of the speed at which the mixing of the two reactants occurs. Micro-fluidic mixers (micromixers) are touted as one area that micro-fluidic devices have fundamental advantages over traditional chemical processing equipment. Micromixers must demonstrate a significant advantage over the best current processing equipment if micromixers are to be implemented in current applications by the very conservative chemical industry. In this study, the mixing performance of a small diameter mixing tee was compared to the mixing performance of a commercial static mixer. In both studies, the hydrolysis of dimethoxypropane was measured quantitatively using gas chromatography. To date, a 177 micron mixing tee and 254 micron mixing tee have been tested and compared with a 1/4 inch and 1/8 inch commercial static mixer. At constant Reynolds numbers, the 254 micron micro-mixer is superior to the 1/4 inch static mixer and the 177 micron micro-mixer is superior to the 1/8 inch static mixer. Reynolds numbers of only 1180 and 410 have been obtained for the 254 micron and 177 micron mixing tee to date. Changes are being implemented to allow operation of higher Reynolds numbers with even smaller diameter mixing tees fabricated from silicon.

Citation Download Citation

James Palmer, Lixiao Zeng, and Roy Penney "Comparison of micromixer with conventional static mixer for use in fast compeititive reactions", Proc. SPIE 4560, Microfluidics and BioMEMS, (28 September 2001); https://doi.org/10.1117/12.443064

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