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Process intensification of H2O2 extraction using gas-liquid-liquid microdispersion system

机译：气-液-液微分散系统萃取H2O2的工艺强化

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A gas-liquid-liquid microdispersion system was specially designed to realize a microbubble-agitated extraction process for the intensification of extraction with high phase ratio. The process with the phase ratio larger than 50 for H2O2 extraction was taken as a typical case. A microstructured system with 5 μm pore size microfiltration membranes as the dispersion medium was developed to generate the gas-liquid-liquid microdispersion system. Considering three different microdispersion modes, the most efficient mode was suggested with lower addition of gas, by which the Murphree efficiency could reach higher than 90% and the overall volume mass transfer coefficient could range in 0.2-21.9 s~(-1) 10-30 times greater than the extraction process without gas addition. A unified mathematical model in the form of K_oa = 0.8We~(0.6)φ~(0.6) was developed to predict the mass transfer in liquid-liquid microdispersion extraction process with/without gas addition.
机译：专门设计了一种气-液-液微分散系统，以实现微气泡搅拌萃取工艺，以高相比强化萃取。以H2O2萃取的相比大于50的过程为典型情况。开发了一种以5μm孔径微滤膜为分散介质的微结构体系，以生成气-液-液微分散体系。考虑到三种不同的微分散模式，建议采用最有效的模式，添加较少的气体，通过该模式，Murphree效率可以达到90％以上，总的体积传质系数可以在0.2-21.9 s〜（-1）10-比不添加气体的萃取过程大30倍。建立了K_oa = 0.8We〜（0.6）φ〜（0.6）形式的统一数学模型，以预测加/不加气体时液-液微分散萃取过程中的传质。

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