Abstract The production of 2,5-dimethylfuran (DMF) from 5-hydroxymethylfurfural (HMF) over different copper supported catalysts was investigated. An adequate metal dispersion and the nature of acid sites played a role in catalytic activity. Alumina containing catalysts showed the best performance in HMF hydrogenation and DMF production due to both higher acidity and copper particle size. Cu/Al2O3, Cu/Fe2O3-Al2O3, Cu/Nb2O5-Al2O3-623 and Cu/Nb2O5-Al2O3-773 showed a complete HMF conversion at 1 h of reaction and a DMF yield higher than 85% with a negligible quantity of ring-hydrogenation products (

中文翻译：

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载体对铜催化剂选择性 5-羟甲基糠醛加氢制 2,5-二甲基呋喃的影响

摘要 研究了以 5-羟甲基糠醛 (HMF) 在不同铜负载催化剂上制备 2,5-二甲基呋喃 (DMF) 的过程。适当的金属分散和酸性位点的性质在催化活性中起作用。由于较高的酸度和铜粒度，含氧化铝的催化剂在 HMF 加氢和 DMF 生产中表现出最佳性能。Cu/Al2O3、Cu/Fe2O3-Al2O3、Cu/Nb2O5-Al2O3-623 和 Cu/Nb2O5-Al2O3-773 在反应 1 小时时显示出完全的 HMF 转化，DMF 产率高于 85%，环的数量可以忽略不计加氢产物（