Stabilization of acid-rich bio-oil by catalytic mild hydrotreating

نویسندگان

چکیده

Although liquid products derived from the pyrolysis of biomass are promising for production petroleum-like hydrocarbon fuels, catalytic burden hydrodeoxygenation must be reduced to achieve feasible upgrading processes. Herein, mild hydrotreating an acid-rich oil (bio-oil) with unusually high total acid number (588 mg KOH/g bio-oil) was performed stabilize low-quality bio-oil. Ru-added TiO2-supported transition metal catalysts stabilized bio-oil by reducing its acidity more compared what could achieved Ru-free catalysts; this process also leads lower loss organic compounds when using a Ru/TiO2 catalyst. Based on performance catalysts, including Ni, Co, and Cu, supported TiO2, tungstate-zirconia, or SiO2, bimetallic were prepared adding Ru catalysts. The Ru/Ni/TiO2 Ru/Co/TiO2 exhibited good decarboxylation activity removal carboxylic acids higher yield that provided Ru, which can deemed appropriate feedstocks needs suppress reactants. Using these concentration 319–323 yields 62–63 wt% at reaction temperatures 150–170 °C than temperature required direct conversion alcohols deoxygenates. improved metals attributed site densities along their hydrogenation activities.

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ژورنال

عنوان ژورنال: Environmental Pollution

سال: 2021

ISSN: ['1873-6424', '0269-7491']

DOI: https://doi.org/10.1016/j.envpol.2020.116180