Chemical microchannel

Most microchannel work to date has focused on low-volume production of specialty and fine chemicals. However, a few pioneering firms and research... 

Medium- to large-scale microchannel processes offer tremendous economically promising advantages in the chemical and energy process industries, and many such demonstrations are underway. Moving from one charuiel to tens of thousands... 

Kreutzer, M.T. et al. (2005) Multiphase monolith reactors chemical reaction engineering of segmented flow in microchannels. 7th International Conference on Gas-Liquid and Gas-Liquid-Solid, 2005,... 

We prepared microchannel reactor employing stainless steel sheet 400tan thick patterned microchannel by a wet chemical etching. The microchannel shape and dimension were decided by computer simulation of flow distribution and pressure drop of the reactants in the microchaimel sheet. Two different types of patterned plates with mirror image were prepared [5]. The plate has 21 straight microchannels which are 550/an wide, 230/an deep and 34mi long as revealed in Fig. 1(b). 

Tonkovich, A. L. Y, Call, C. J., Jimenez, D. M., Wegeng, R. S., Drost, M. K., MicroChannel heat exchangers for chemical reactors, in Proceedings of the AIChE Symposium Heat Transfer,... 

P., Detailed characterization of various porous alumina based catalyst coatings within microchannels and their testingfor methanol steam reforming, Chem. Eng. Res. Des., special issue on Chemical Reaction Engineering (2003) submitted for publication. 

M. A., Towards integration of chemical detection for liquid phase microchannel reactors, in Proceedings of the 4th International Conference on MicroreacUon Technology, IMRET 4, 5-9 March 2000, pp. 461 66, AIChE Topical Conf. Proc., Atlanta, GA (2000). 

Tonkovich, A.L., Kuhlmann, D., Rogers, A. et al. (2005) MicroChannel Technology Scale-up to Commercial Capacity. Chemical Engineering Research and Design, 83(A6), 634—639. 

Desorption chemical ionisation (DCI) Fourier transform (FTMS) MicroChannel plate... 

Initially, the reactor was to be built using silicon wafers, 92 but more recent efforts have focused on a stainless steel reactor. The reformer, 7.5 x 4.5 x 11.0 cm (371 cm ), houses up to 15 stainless steel plates (0.5 mm thick) with chemically etched microchannels and heating cartridges. Conventional and laser micromachining techniques were used to fabricate the reformer body. The microchannel dimensions are 0.05 x 0.035 x 5.0 cm . The reactor inlet was carefully designed to allow uniform flow conditions. ... 

Dada, E. and Lawal, A. (2007) US DOE Chemicals Industry of the future. Success Stories, http //wwwl.eere. energy.gov/industry/chemicals/pdfs/ microchannel h202 highlight.pdf. 

One way to achieve miniaturization using this solution-based procedure is through incorporation of the system into a microchannel. Microchannels are particularly attractive for sensing purposes because they provide a convenient platform for rapid analysis and detection, as has been shown both for biological samples [67] and, more recently, for chemical analytes [68— 70]. Furthermore, it eliminates problems such as solvent evaporation in the preparation of the monolayer and in the analysis, as well as pollution or contamination. 

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