Lignin is one of the renewable natural aromatic polymers, the use of lignin as a raw material for the preparation of high value-added chemicals and fuels is regarded as a promising strategy for lignin valorization, and hydrogenolysis is one of the more common and effective way for lignin depolymerization. Hence, this paper reviews the present status, advantages and disadvantages of catalytic hydrogenolysis of lignin from two aspects of the solvent system and catalyst system. Solvents have been found to have a huge impact on the hydrogenolysis process and product distribution of lignin, the repolymerization of active intermediates is the main reason for char formation. It is proposed that the influence of different lignin structures should be fully considered in the catalyst design process, and the mechanism study of the hydrogenolysis process should focus on real lignin rather than model compounds. Finally, the challenges and prospects in this field are proposed.

木质素是一种可再生的天然芳香族聚合物，以木质素为原料制备高附加值化学品和燃料被认为是一种有前景的木质素升值策略，而氢解是较为常见和有效的方法之一。用于木质素解聚。因此，本文从溶剂体系和催化剂体系两个方面对木质素催化氢解的现状、优缺点进行了综述。已发现溶剂对木质素的氢解过程和产物分布有巨大影响，活性中间体的再聚合是形成炭的主要原因。提出在催化剂设计过程中应充分考虑不同木质素结构的影响，氢解过程的机理研究应侧重于真正的木质素而不是模型化合物。最后，提出了该领域的挑战和前景。