METHODS AND CATALYSTS FOR DEOXYGENATING BIOMASS-DERIVED PYROLYSIS OIL

• Main Authors: BRANDVOLD, TIMOTHY A, TRAYNOR, THOMAS, ABRAHAMIAN, JENNIFER F
• Format: Patent
• Language: English; French
• Published: 06.12.2012
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CRACKING HYDROCARBON OILS; FUELS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

Embodiments of methods and catalysts for deoxygenating a biomass-derived pyrolysis oil are provided. The method comprises the step of contacting the biomass-derived pyrolysis oil with a first deoxygenating catalyst in the presence of hydrogen at first predetermined hydroprocessing conditions to form a first low-oxygen biomass-derived pyrolysis oil effluent. The first deoxygenating catalyst comprises a neutral catalyst support, nickel, cobalt, and molybdenum. The first deoxygenating catalyst comprises nickel in an amount calculated as an oxide of from 0.1 to 1.5 wt. %. Des modes de réalisation de procédés et catalyseurs de désoxygénation d'une huile de pyrolyse issue de biomasse font l'objet de l'invention. Le procédé comprend l'étape consistant à mettre en contact l'huile de pyrolyse issue de la biomasse avec un premier catalyseur de désoxygénation en présence d'hydrogène à de premières conditions d'hydrotraitement prédéterminées pour former un premier effluent d'huile de pyrolyse issu de biomasse à faible teneur en oxygène. Le premier catalyseur de désoxygénation comprend un support de catalyseur neutre, du nickel, du cobalt et du molybdène. Le premier catalyseur de désoxygénation comprend du nickel dans une quantité calculée en tant qu'oxyde de 0,1 à 1,5 % en poids.