This is the supporting information for the paper: "Modeling the competition between polymorphic phases: highlights on the effect of Ostwald Ripening". Appendix A is the derivation of equation ( 18). Appendix B explains the demonstration of equation ( 23) from equation ( 22).
The major complication of membrane contactors for gas absorption processes is the gradual wetting of the membrane which increases the mass transfer resistance and annihilates process intensification performances. Two standard membrane materials (microporous PP and PTFE) are compared to two novel composite hollow fiber materials: a dense skin layer on the liquid side prevents wetting (a PMP and a Teflon-AF dense skin coated on a PP fiber). The contactors were tested over 1000 h for CO 2 absorption in a 30% MEA solution. The stability of the CO 2 capture efficiency over time and the overall mass transfer performances are presented and discussed. A noticeable wetting protection effect of the dense skin membranes is obtained. A large decrease of the capture efficiency is observed with PP, and a slight decrease only is obtained with PTFE. The potentialities of the different fibers for process intensification purposes on long time use is discussed.
Static mixers provide enhanced mixing via a motionless element inside a rigid pipe, and are widely used for continuous mixing and blending in industry. This study focuses on the emulsification of a silicon oil-in-water system stabilized by a surfactant through SMX+ ® static mixers involving no mass transfer between the two phases. The experiments covered a large domain of dispersed fraction from dilute conditions (5 %vol.) up to concentrated ones (60 %vol.) close to phase inversion and three different viscosities from 20 to 350 mPa s with transitional or turbulent flow regimes. The number of static mixers was studied until a constant drop size distribution monitored at line with a video probe was obtained. With the considered flow rates, only the five first SMX+ elements were necessary to achieve a complete drop breakup and coalescence equilibrium, the following ones only causing a supplementary pressure drop. The influence of the number of SMX+ and energy dissipation rate was found to be of first order
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