Chips Reactor

This class of hybrid components comprises chip micro-reactor devices, as described in Section 4.1.3, connected to conventional tubing. This may be H PLC tubing which sometimes has as small internals as micro channels themselves. The main function of the tubing is to provide longer residence times. Sometimes, flow through the tube produces characteristic flow patterns such as in slug-flow tube reactors. Chip-tube micro reactors are typical examples of multi-scale architecture (assembly of components of hybrid origin). 

Salimi-Moosavi, H., Tang, X, Harrison, D. )., Electroosmotic pumping of organic solvents and reagents in microfabricated reactor chips,... 

Figure 21. MicroChannel reactor chip. (Reprinted with permission from ref 34. Copyright 2003 Elsevier.)...

Researchers at the Chinese Academy of Sciences are developing a scalable methanol autothermal reforming (ATR) reactor. The microchannel reactor will be composed of multiple reactor chips (Figure 21). with each chip able to process enough methanol for approximately 100 We hydrogen. Both aluminum and stainless steel were evaluated for use as the chip... 

Fig. 2 Electrokinetically driven on-chip reaction in a CE-based system. Postseparation labeling of amino acids with OPA. Sample contained 200 /jlM each of phenylalanine and valine, and 10 ijlM of hydrolyzed dansyl chloride. The postcolumn reactor chip design is shown in the inset. [Reproduced from Electrophoresis 18 1733 (1997), with permission.]...

Yamamoto, T., Shimizu, Y., Ueda, T., et al. (2011) Apphcation of micro-reactor chip technique for millisecond quenching of deuterium incorporation into 70S ribosomal protein complex. International Journal of Mass Spectrometry, 302 (1-3), 132-138. 

Figure 8.9 Packed bed MSR. (a) Top silicon layer illustrating fluid manifold to 10 parallel fixed bed reaction channels, (b) Photomicrograph of multichannel reactor chip. (Adapted with permission from Ref. [20]. Copyright (2001) American Chemical Society.)...

The dehydration of 1-hexanol to 1-hexene, using a sulfated zirconia catalyst (zirconia treated with sulfuric add) [1, 2], can be performed in a microflow reactor [3]. 1-Hexanol is pumped through the reactor chip at a flow rate of 3 pLmin" at 155 °C. The conversion of 1-hexanol to 1-hexene is on average between 85 and 95% (Scheme 11.1). This conversion efficiency is extremely good compared with the 30% yield expected for the industrial process. The reaction can also be applied to ethanol. Only trace amounts of ethanol are detected, with most of the feedstock being converted to ethylene (68%), ethane (16%) and methane (15%). 

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