Abstract: A process for producing a base for a fuel from a C2 ethanol feedstock, by a first stage for oligomerization of the feedstock into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbons, and contains a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that contains a metal precursor of titanium, zirconium, hafnium, nickel and/or iron, a second stage for oligomerization of a portion of the effluent that is obtained from stage a), into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbon atoms, and containing a C10-C24 fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system.

Abstract: This invention describes a process for the production of bases for fuels (such as diesel and/or kerosene) from a C2 ethanol feedstock, whereby said process comprises at least a first stage for oligomerization of said feedstock into at least one hydrocarbon effluent that comprises a mixture of olefins that for the most part have between 4 and 30 carbons, whereby said olefin mixture comprises a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that comprises at least one metal precursor that is selected from among the group that is formed by titanium, zirconium, hafnium, nickel and iron, taken by themselves or in a mixture, a second stage for oligomerization of at least a portion of the effluent that is obtained from stage a), into at least one hydrocarbon effluent that comprises a mixture of olefins that for the most part have between 4 and 30 carbon atoms, with said olefin mixture comprising a C10-C24 fraction that has a mean linearity that