ANYL 62 |
| Droplet-based microreactors possessing the advantages of adjustable size-confinement and recyclable capability have been widely used in various chemical reactions. The realization of microractor in supercritical carbon dioxide without using surfactants is advantageous from the green chemistry viewpoint. The surfactant-free microreactor is simple and could be theoretically studied using the interfacial tension between the solvent pool (droplet) and the surroundings (supercritical fluid). We used the Parachor model and the Young-Laplace equation to study the spherical droplet formed in the supercritical fluid. Brownian coagulation and breakage of formed droplets was simulated by Monte-Carlo method. Finally, the droplet size distribution at different temperature and pressure was obtained. The simulation result agrees well with experimental result of previous supercritical fluid extraction study. The microreactor concept extends the solubilization model (the solid curve in the Figure) to droplet transportation model, which was related to the density of supercritical fluid only.
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General Papers
7:00 PM-9:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster
Division of Analytical Chemistry |
