TY - JOUR
T1 - Efficient catalytic transfer hydrogenation of raw bio-oil over various CuO catalysts
AU - Shao, Shanshan
AU - Wang, Weicheng
AU - Yang, Xinyu
AU - Ye, Zian
AU - Sun, Jiayuan
AU - Li, Xiaohua
N1 - Publisher Copyright:
© 2023
PY - 2023/12/1
Y1 - 2023/12/1
N2 - A novel method was proposed for biomass fast pyrolysis oil upgrading using catalytic transfer hydrogenation (CTH) based on various CuO catalysts with methanol as the hydrogen donor. The carbonyl compounds in the bio-oil were hydrogenated to synthesize alcohols using a hydrotalcite-like Cu2Al catalyst at 200℃ for 4 h. The maximum yield of alcohols reached 73.81%. Cu2Al is well applicable to large-scale application in bio-oil CTH for its excellent CTH performance, treating capacity up to 10 vol%, and stable alcohol production during the 5th reuse process. Given the huge range of molecular size of the complex chemical composition of bio-oil, the CTH of raw bio-oil using three catalysts (i.e., CuO/BC, CuO/Al2O3, and Cu2Al) was compared. The CTH performance (71.56%) of CuO/Al2O3 was significantly comparable to that of Cu2Al, and it is also a good choice. The main reason for this outcome was that the average pore size of the two catalysts was high (>5nm), which reduced the possibility of pore blockage during the reaction and improved stability. The reusability of CuO/BC was markedly lower for its small average pore size (∼2nm). Furthermore, the CTH of raw bio-oil over CuO catalyst was discussed in depth, such that a basis is laid for the upgrading and utilization of bio-oil.
AB - A novel method was proposed for biomass fast pyrolysis oil upgrading using catalytic transfer hydrogenation (CTH) based on various CuO catalysts with methanol as the hydrogen donor. The carbonyl compounds in the bio-oil were hydrogenated to synthesize alcohols using a hydrotalcite-like Cu2Al catalyst at 200℃ for 4 h. The maximum yield of alcohols reached 73.81%. Cu2Al is well applicable to large-scale application in bio-oil CTH for its excellent CTH performance, treating capacity up to 10 vol%, and stable alcohol production during the 5th reuse process. Given the huge range of molecular size of the complex chemical composition of bio-oil, the CTH of raw bio-oil using three catalysts (i.e., CuO/BC, CuO/Al2O3, and Cu2Al) was compared. The CTH performance (71.56%) of CuO/Al2O3 was significantly comparable to that of Cu2Al, and it is also a good choice. The main reason for this outcome was that the average pore size of the two catalysts was high (>5nm), which reduced the possibility of pore blockage during the reaction and improved stability. The reusability of CuO/BC was markedly lower for its small average pore size (∼2nm). Furthermore, the CTH of raw bio-oil over CuO catalyst was discussed in depth, such that a basis is laid for the upgrading and utilization of bio-oil.
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U2 - 10.1016/j.fuel.2023.129028
DO - 10.1016/j.fuel.2023.129028
M3 - Article
AN - SCOPUS:85164680546
SN - 0016-2361
VL - 353
JO - Fuel
JF - Fuel
M1 - 129028
ER -