Gas-liquid-liquid segmented flow and mass transfer in a meandering microchannel

来源 :The 14th International Conference on Microreactivity Technol | 被引量 : 0次 | 上传用户:ellen0807523254
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  Gas-liquid-liquid systems are widely encountered in various reaction systems with biphasic catalysis,such as hydrogenation,hydroformylation and carbonylation.These systems usually require large surface area between immiscible phases to obtain necessary heat or mass transfer rate and controllable dispersion of phases to ensure stable operation and production.Conventional reactors(e.g.,tanks,columns)can hardly fulfill these requirements,hence leading to low efficiency and high energy-consuming,especially when the reactions are highly exothermic and explosive.In microchannel reactors,gas-liquid-liquid system obtains far better dispersion due to the domination of surface forces between immiscible phases,which enable much easier manipulation of gas bubbles or liquid droplets.Therefore,understanding the three phase dispersion mechanism and mass transfer characteristics is of great importance.
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