NOVELTY - Separating a mixture of ethane and ethylene from vapocracking effluent containing hydrogen, methane, ethylene, ethane, acetylene, methacetylene, propadiene, propene and at least 4C hydrocarbons comprises passing through an adsorption column, hydrogenating, distilling, distilling again and recycling the recovered solvent.    USE - For separating ethylene and ethane in vapocracking effluent.    ADVANTAGE - The process is highly selective and the production of dienes and compounds with triple bonds is prevented.    DETAILED DESCRIPTION - Separating a mixture of ethane and ethylene from vapocracking effluent containing hydrogen, methane, ethylene, ethane, acetylene, methacetylene, propadiene, propene and at least 4C hydrocarbons comprises adsorbing a charge using a cooled solvent phase and an adsorption column(s) to give a gas phase containing H2 and CH4 and a solvent phase containing ethylene, ethane, acetylene, methacetylene, propadiene, propene and at least 4C hydrocarbons, hydrogenating the liquid phase in a catalyzed hydrogenation zone(s) to give a (partially) hydrogenated liquid phase not containing acetylene, circulating this liquid phase in a first distillation column(s) to recover a gas phase that is condensed to give a vapor phase and a liquid phase containing 2C hydrocarbons and a solvent phase containing at least 3C hydrocarbons, passing the solvent phase through a second distillation column to recover a 3+C hydrocarbon fraction and a regenerated solvent phase, cooling the solvent and reintroducing in to the adsorption column.    An INDEPENDENT CLAIM is included for the apparatus used comprising an adsorption columns, a charge entry point, a column head, a cooling device, a gas exit, a liquid phase exit, a hydrogenation effluent exit, two distillation columns with a cooling device, gas exits, condensation and exit device and recycling device.    DESCRIPTION OF DRAWING(S) - The drawing shows an apparatus for separating ethane and ethylene from vapocracking effluent.