非均相催化剂催化5-羟甲基糠醛氢解制备2,5-二甲基呋喃研究进展

随着化石能源的日益短缺，清洁可再生生物质资源的利用，尤其是制备高品质生物燃料逐渐成为研究热点。2,5-二甲基呋喃（DMF）具有优良的物理化学性质，被认为是最有前途的液体生物燃料之一，可通过生物质平台分子5-羟甲基糠醛（HMF）选择性氢解制备。HMF化学性质非常活泼，可以转化成多种下游产品，因此设计制备高选择性催化剂对于靶向合成DMF至关重要。本文依据贵金属和非贵金属对催化剂进行分类，详细综述了非均相催化剂在HMF氢解制备DMF反应中的研究新进展；针对目前研究中存在的局限性和问题，提出了催化剂和反应体系的研究方向。此外，指出以生物质为原料直接制备DMF及建立有效的分离技术是实现DMF工业化生产的重要途径。

Research progress of the heterogeneous catalysts for 2,5-dimethylfuran synthesis via hydrogenolysis of 5-hydroxymethylfufural

With the increasing shortage of fossil energy, the utilization of clean and renewable biomass resources, especially the preparation of high-quality biofuels has become a research hotspot. 2,5-Dimethylfuran (DMF) is regarded as one of the most promising liquid biofuels due to its excellent physical and chemical properties. DMF can be synthesized by selective hydrogenolysis of 5-hydroxymethylfurfural (HMF). However, HMF is chemically active and can be converted into various downstream products, so it is critical to develop catalysts with high selectivity for DMF production. In this review, recent advances of noble and non-noble metal-based catalysts are reviewed in detail for the hydrogenolysis of HMF to DMF. The limitations and problems in current researches, potential research trends of the catalysts and reaction systems were proposed. In addition, it is pointed out that the direct preparation of DMF from biomass and the establishment of effective separation technology are important for realizing the industrial production of DMF.