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Abstract
AbstractBackgroundSuccinic acid is a vital platform chemical derivable from lignocellulosic biomass. Various non‐noble metal catalysts were used to hydrogenate succinic acid and produce 1,4‐butanediol in this study. Among them, Co‐loaded SiO2 with a moderate mean pore size of 10 nm exhibited a superior catalytic performance.ResultsThe high catalytic activity of Co‐loaded SiO2, which was prepared by an impregnation method, was demonstrated in the hydrogenolysis of succinic acid to provide 1,4‐butanediol. The Co/SiO2 catalyst reduced at 400 °C and calcined at 300 °C existed in the form of Co2+ and Co0, exhibiting a high catalytic activity. The production of 1,4‐butanediol from succinic acid was significantly enhanced at a temperature of 200 °C and an H2 pressure exceeding 5 MPa. At 200 °C and 7 MPa H2 pressure, a 1,4‐butanediol selectivity of 67.8% and a full succinic acid conversion were obtained over Co/SiO2.ConclusionThe Co‐loaded SiO2 with a moderate mean pore size of 10 nm was conducive to the efficient generation of 1,4‐butanediol from succinic acid. The Co/SiO2 catalyst reduced at 400 °C existed in the form of Co0 and Co2+. It was suggested that the efficient synthesis of 1,4‐butanediol from succinic acid was facilitated by the cooperative action of Co0 and Co2+. © 2024 Society of Chemical Industry (SCI).
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