Abstract：Guaiacol is a typical lignin-derived model compound. Catalytic hydrodeoxygenation (HDO) of guaiacol to cyclohexanol, which is a nylon precursor, is an effective strategy for lignin valorization. The RuNi bimetallic catalyst supported on γ-Al2O3 was prepared by a deposit precipitation-potential replacement method. The experimental results proved that 0.5Ru5Ni/γ-Al2O3 could achieve more than 80% cyclohexanol yield under a mild condition (180 ℃, 1 MPa H2, 3 h). The space time yield of RuNi bimetallic catalyst increased 57 times and 28 times, respectively, compared with Ni and Ru monometallic catalysts. There was little decrease in activity of 0.5Ru5Ni/γ-Al2O3 catalyst after repeated use for 5 times, implying the excellent stability. This work could be used as reference for the design of HDO bimetal composite catalyst for high efficiency catalysis of guaiacol.
CHENG Wei,SONG Chuqiao,ZHAO Shufang et al. γ-Al2O3 Supported RuNi Bimetallic Catalyst for Hydrodeoxygenation of Guaiacol to Cyclohexanol[J]. Chemical Reaction Engineering and Technology, 2025, 41(2): 253-261.
