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Ethanol dehydration via azeotropic distillation with gasoline fraction mixtures as entrainers: A pilot-scale study with industrially produced bioethanol and naphta
- Gomis, Vicente, Pedraza, Ricardo, Saquete, María Dolores, Font, Alicia, García-Cano, Jorge
- Fuel processing technology 2015 v.140 pp. 198-204
- bioethanol, catalytic cracking, cyclohexanes, distillation, ethanol, gasoline, hexane, iso-octanes, toluene, vehicles (equipment), water content
- Various hydrocarbons (n-hexane, cyclohexane, toluene, isooctane) and mixtures of them (binary, ternary or quaternary), as well as two different types of industrially produced naphtha (one obtained by direct distillation and the other from a catalytic cracking process), have been tested as candidate entrainers to dehydrate ethanol. The tests were carried out in an azeotropic distillation column on a semi pilot plant. The results show that it is possible to dehydrate bioethanol using naphtha as entrainer, obtaining as a result a fuel blend with negligible water content and ready for immediate use in motor vehicles.