Ternary phase diagrams for gasoline-water-alcohol mixtures |
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| Affiliation: | 1. TU Dortmund University, Department of Biochemical and Chemical Engineering, Laboratory of Fluid Separations, Emil-Figge-Straße 70, D-44227 Dortmund, Germany;2. Lodz University of Technology, Faculty of Process and Environmental Engineering, Department of Environmental Engineering, Wólczañska 213, 90-924 Lódz, Poland |
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| Abstract: | The ternary phase diagrams for gasoline-water-alcohol (where the alcohol is methanol, ethanol, 1-propanol, 1-butanol or a ‘SASOL alcohol substitute’) mixtures have been determined over the whole composition range at temperatures between 2 °C and 40 °C. The result shows that the miscibility of water in these blends is strongly dependent on the type of alcohol present. Furthermore the tie-line results show the composition of the separated water-rich phase are also strongly dependent on the type of alcohol. It is believed that these results have a bearing on the carburettor corrosion problems experienced when using gasoline-SASOL alcohol substitute blends. |
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