Distillation Studies in a High-Gravity Contactor
| Autor: | Hsiang-Ju Lin, 林幸如 |
|---|---|
| Rok vydání: | 2002 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 90 In conventional process, an azeotropic mixture was separated by extractive distillation, azeotropic distillation, or by alternating the pressures of two consecutive distillation columns. The disadvantage of the above processes is of extensive energy consumption. The goal of this study is on the feasible application of a rotating packed bed, named as Higee (high gravity) to separate an azeotropic mixture. A Higee apparatus was set up in our laboratory for experimental purpose. The ethanol-water azeotrope was the mixture being studied. The experimental results showed that a Higee is similar to a distillation column so that the composition of the light component in vapor phase can be increased and affected by the rotor speed. Different rotor speed, feed composition, vapor and liquid flow rate into apparatus were tried in experiments to observe the effect on the outlet compositions of vapor and liquid. Finally, cupric chloride and potassium acetate was added to the liquid phase and observed that these two salts will affect the azeotropic composition of ethanol and water mixture. Furthermore, it was observed that the azeotropic point could be removed if saturated potassium acetate was added. This indicates that the application of Higee to separate ethanol-water azeotrope is feasible. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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