PROCESS FOR UPGRADING A PYROLYSIS OIL, IN PARTICULAR IN A REFINERY

• Main Author: PREAU ALEXANDRE
• Format: Patent
• Language: English
• Published: 09.08.2012
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOUNDS THEREOF; CRACKING HYDROCARBON OILS; FUELS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; LUBRICANTS; METALLURGY; MINERAL WAXES; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; 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; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention relates to a process for upgrading a pyrolysis oil comprising the following steps: hydrodeoxygenation treatment (10) of the pyrolysis oil (12) and separation of the effluent (16) obtained into a light aqueous fraction (18) and a heavy organic fraction (20), or separation of the pyrolysis oil into an aqueous fraction and a lignin-rich fraction, pre-reforming (22) of said aqueous fraction (18) and treatment of the effluent (26) obtained in an SMR unit (28) in N order to produce hydrogen (34), hydrotreatment (40) and/or catalytic cracking and/or visbreaking of said heavy organic fraction (20).