Triple-channel microreactor

As a result of the increased illumination as well as the increased gas-liquid contact area per unit volume, the triple-channel microreactor exhibited better performance compared to the batch reactor, or even compared to a typical dual-channel microreactor [138,139]. Moreover, the scaleup process using the microreactor revealed higher productivity than the batch reactor, which would be valuable for the practical applications in a broad range of gas-liquid chemical reactions. 

The excellent performance of a triplesoft-lithography technique was demonstrated by carrying out photosensitized oxygenations of a-terpinene, citronellol, and allyl alcohols [137]. The reaction solution containing the reactant and a photosensitizer was delivered through the middle channel, whereas the outer two channels were used for oxygen supply. 

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