Abstract
In this study, we present a simple and fast method for the measurement of gas solubility in different liquids. Gas solubility measurements were carried out in a microcontactor using microdispersions to enhance mass transfer. The gas−liquid microcontactor, with a 5 μm pore size microfiltration membrane as the dispersion medium, was used to measure the gas solubility of six typical gas−liquid systems. The gas−liquid systems reached vapor−liquid equilibrium within 2 s, much less time than the 24 h required by the widely used static method of measurement. The obtained gas solubility data agree well with those obtained using the static method. The results produced using this measurement method were also highly reproducible, and relative measurement errors were less than 10% at the optimized operating conditions. The present method can potentially be very useful for the accurate and rapid measurement of gas solubility in many areas including gas−liquid reactions and solvent-based CO2 capture.
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