Method for separating benzothiophene compounds from hydrocarbon mixture containing them, and hydrocarbon mixture obtained by said method

The present invention relates to the separation of benzothiophene compounds from a mixture of hydrocarbons comprising them, for example from a fuel, such as gas oil. The importance of such a separation has increased in recent years as a result of the introduction or the envisaged application of various laws across the whole world targeted at lowering the level of sulfur-comprising products in gas oil. A method for separating at least a benzothiophene compound from a hydrocarbon mixture is disclosed. The method includes contacting the mixture of a fraction obtained therefrom with a reagent including an acceptor complexing agent , to obtain a donor-acceptor complex between the acceptor complexing agent and the benzothiophene compound; and separating the complex from the mixture, or from the fraction, to obtain a fraction depleted or purified in the benzothiophene compound.