A transparent micro-device to study mass transfer and thermodynamics in two-phase flows at high pressure

Abstract : Concentration data and mass transfer coefficients between supercritical CO2 and water in microfluidic capillaries are still scarce in the literature, although they are a big asset for the understanding of green chemical processes using water and supercritical CO2. In this study, a transparent, inexpensive and pressure resistant microsystem is developed to investigate mass transfer of a two-phase flow of water and CO2 under high-pressure (P > 70 bar). It is based on microcapillary technology [1] and allows 2D axisymmetric modelling.
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Thomas Deleau, Jean‐jacques Letourneau, Séverine Camy, Fabienne Espitalier, J. Aubin, et al.. A transparent micro-device to study mass transfer and thermodynamics in two-phase flows at high pressure. 12th International Symposium on Supercritical Fluids, INTERNATIONAL SOCIETY FOR THE ADVANCEMENT OF SUPERCRITICAL FLUIDS, Apr 2018, Antibes-Juan-Les-Pins, France. 8 p. ⟨hal-01858138⟩

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