Method of incorporating alcohol into fuels having a high aromatic compound content

摘要

The method allows to incorporate an alcohol or a mixture of alcohols into fuels by minimizing the energy expenditure linked with the prior production of the alcohol or of the mixture of alcohols. One or more bases of the fuel, to which an oxygen-containing compound or a mixture of oxygen-containing compounds have possibly been added, are used to extract the alcohol or the alcohol mixture contained in aqueous solutions produced by biomass fermentation processes. After adjusting the temperature of the aqueous solution stream and of the stream containing one or more bases of the fuel through exchangers, these streams are fed into an extractor. The extract leaving the extractor is then dried and/or an oxygen-containing compound or a mixture of oxygen-containing compounds is added thereto. The raffinate leaving the extractor is sent to a water treating plant or recycled. The stream of dried fuel to which an oxygen-containing compound or a mixture of oxygen-containing compounds has possibly been added is sent to be stored. The water leaving the drying stage is sent to a water treating plant or recycled.

主权项

1. A method of incorporating alcohol or mixtures of alcohols into a fuel having an aromatic compound content of at least 70 wt. % that is a reformate gasoline cut, a pyrolysis gasoline cut or an LCO type diesel fuel, said method comprising:
liquid-liquid extraction of the alcohol or the alcohol mixture by at least one or more fuels, by directly contacting an aqueous phase containing the alcohol or the alcohol mixture and a hydrocarbon phase comprising said fuel, and drying the fuel enriched in alcohol or alcohol mixture.