OPTIMIZED METHOD FOR PROCESSING PLASTIC PYROLYSIS OILS FOR IMPROVING THEIR USE

The present invention relates to a method for processing a plastic pyrolysis oil, comprising: a) a step of selective hydrogenation of the feedstock in the presence of at least hydrogen and at least one selective hydrogenation catalyst at a temperature of between 100 and 150 °C, a partial pressure of hydrogen of between 1.0 and 10.0 MPa absolute and an hourly volume rate of between 1.0 and 10.0 h-1, in order to obtain a hydrogen effluent; b) a step of hydroprocessing said hydrogen effluent in the presence of at least hydrogen and at least one hydroprocessing catalyst at a temperature of between 250 and 370 °C, a partial pressure of hydrogen between 1.0 and 10.0 MPa absolute and an hourly volume rate of between 0.1 and 10.0 h-1, in order to obtain a hydroprocessing effluent; c) a step of separating the hydroprocessing effluent in the presence of an aqueous flow at a temperature of between 50 and 370 °C in order to obtain at least one gaseous effluent, one aqueous liquid effluent and one liquid hydrocarbon effluent; e) a step of recycling at least a fraction of the obtained product.