PROCESS FOR TREATING PLASTIC PYROLYSIS OIL INCLUDING HYDROCRACKING IN TWO STEPS

• Main Authors: WEISS, Wilfried, BONNARDOT, Jérôme, RIBAS SANGÜESA, Iñigo
• Format: Patent
• Language: English; French; German
• Published: 18.09.2024
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The present invention relates to a process for treating a plastics pyrolysis oil, comprising:a) the selective hydrogenation of said feedstock to obtain a hydrogenated effluent;b) hydrotreatment of said hydrogenated effluent to obtain a hydrotreatment effluent;c) a first step of hydrocracking of said hydrotreated effluent to obtain a first hydrocracked effluent;d) separation of the hydrocracked effluent in the presence of an aqueous stream, to obtain a gaseous effluent, an aqueous liquid effluent and a hydrocarbon-based liquid effluent;e) fractionation of the hydrocarbon-based liquid effluent to obtain at least one gas stream and at least one naphtha cut and a heavier cut;f) a second step of hydrocracking of the heavier cut to obtain a second hydrocracked effluent;g) recycling of at least a portion of said second hydrocracked effluent into the separation step d).