PYROLYSIS OIL TREATMENT PROCESS INCLUDING A SERIES OF HYDROTREATMENT - HYDROCRACKING FOLLOWED BY HOT SEPARATION

Abstract

Process for treating a feedstock comprising a pyrolysis oil of plastic and / or tires and / or solid recovered fuels comprising: b) hydrogenation of said feedstock and part of the liquid effluent from the separation step e1) to obtain a hydrogenated effluent, c) hydrotreating said hydrogenated effluent to obtain a hydrotreated effluent, d) hydrocracking said hydrotreated effluent to obtain a hydrocraced effluent, e1) separation of the hydrocraced effluent carried out at high temperature and high pressure to obtain a gaseous effluent and a liquid effluent, part of which is recycled upstream of step b), e2) a separation / washing step carried out at low temperature and high pressure fed by the gaseous effluent and optionally the other part of the liquid effluent from step e1) and an aqueous solution, to obtain a hydrocarbon effluent free of impurities.