System and process for upgrading pyrolysis oil to light aromatics over mixed metal oxide catalyst

• Main Authors: SHAIKH SOHEL K, ALMALKI, FARHAD, A, ARMANA NOOR, ZHANG ZHONGLIN, SUN MIAO
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2023
• 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

A system for upgrading pyrolysis oil may include a pyrolysis upgrading unit having a mixed metal oxide catalyst and a separation unit operable to separate a used mixed metal oxide catalyst from a reaction effluent. A method for upgrading a pyrolysis oil can include contacting the pyrolysis oil with hydrogen under reaction conditions in the presence of a mixed metal oxide catalyst to produce a reaction effluent. The pyrolysis oil may include a polycyclic aromatic compound. The mixed metal oxide catalyst may include a plurality of catalyst particles, and each of the plurality of catalyst particles has a plurality of metal oxides. Contacting the pyrolysis oil with hydrogen under reaction conditions in the presence of a mixed metal oxide catalyst can convert at least a portion of the polycyclic aromatic compounds in the pyrolysis oil to light aromatic compounds. 用于改质热解油的系统可以包括具有混合金属氧化物催化剂的热解改质单元和可操作用于从反应流出物中分离用过的混合金属氧化物催化剂的分离单元。用于改质热解油的方法可以包括在混合金属氧化物催化剂存在下在反应条件下使热解油与氢气接触以产生反应流出物。热解油可以包括多环芳族化合物。混合金属氧化物催化剂可以包括多个催化剂