Selective Hydrodeoxygenation of Lignin‐Derived Phenolic Monomers to Cyclohexanol over Tungstated Zirconia Supported Ruthenium Catalysts

• DOI: 10.1002/cssc.202400644
• Publication Date: 2024-06-24T09:04:22Z
• Authors: Quan Gan; Weihao Zhou; Xueping Zhang; Yamei Lin; Shenlin Huang; Guo‐Ping Lu
• Keywords: Hydrodeoxygenation; Cyclohexanol; Guaiacol; Lignocellulosic Biomass

Abstract The selective hydrodeoxygenation (HDO) of lignin‐derived methoxyphenols to cyclohexanol is one the most significant transformation in biomass conversion since an important industrial raw material. This study has disclosed a series tungstated zirconia with different Zr/W ratio supported Ru catalysts (Ru/xZrW, x means molar ration Zr/W) for guaiacol cyclohexanol. Among these catalysts, Ru/16ZrW best catalytic activity, which can achieve 92 % yield under conditions 180 °C and 1 MPa H 2 pressure h (TOF 231 −1 ). Compared Ru/ZrO , smaller particles, more dispersed electron‐rich species, hydrogen spillover acid sites, are main reason its excellent performance on this reaction. Apart from guaiacol, other methoxy substitution phenols organosolv lignin also be converted into via reactions over catalyst.