Solvent vapors absorption system reducing contaminations

A continuous process for improving the efficiency of solvent vapors absorption system, said solvent vapors absorption system including at least a scrubber and a medium vacuum stripper, and optionally a deep vacuum stripper, said continuous process comprising the following steps:

• a) providing a stream of air/solvent vapors resulting from one or more item(s) of a solvent extraction facility processing vegetable oleaginous material,
• b) providing a stream of a liquid circulating in said solvent vapors absorption system, said liquid being in different forms i.e., a partially desolventized liquid and a solvent laden liquid, and optionally a desolventized liquid
• c) providing a first and optionally a second stream of stripping medium,
• d) contacting counter-currently within said scrubber said stream of air/solvent vapors to said partially desolventized liquid stream or optionally to said desolventized liquid to obtain a stream of solvent laden liquid and a stream of desolventized air,
• e) contacting counter-currently within said medium vacuum stripper said stream of solvent laden liquid with said first stream of stripping steam to obtain a stream of partially desolventized liquid and a first stream of solvent and water vapors, wherein said first stream of solvent and water vapors is introduced in a dedicated vacuum condenser, which is independent from the rest of the solvent extraction plant, to obtain a condensate, the condensate being introduced in a reboiler to obtain a stream of wastewater and a stream of evaporated solvent vapors.