Catalytic transfer hydrogenation of furfural to furfuryl alcohol is considered to be a very important industrial process. In this work, non-noble Cu supported on MgO-Al₂O₃ catalysts have been prepared by co-precipitation and have shown excellent catalytic performance for conversion of furfural to furfuryl alcohol in near-critical iso-propanol. The effects of the Cu state (reduction degree and dispersion) and loading in Cu/MgO-Al₂O₃, acidity of catalysts have been investigated by X-ray diffraction (XRD), coupled plasma optical emission spectrometry (ICP-OES), N₂ adsorption and desorption (N₂-BET) and temperature-programmed desorption of ammonia (NH₃-TPD), which have led to high activity for producing furfuryl alcohol. The results have shown that the selectivity of furfuryl alcohol has been influenced by the Cu state, Lewis acidity, reaction temperature and reaction time. The mechanisms, Lewis acid- and metal mediated hydrogenation, have shown that a desirable balance of Cu loading and Lewis acidity of catalyst has influenced the activity significantly. Almost 100% furfural conversion, with 89.3% furfuryl alcohol yield has been obtained. Cycling tests have shown that the prepared catalysts have been stable, where recycling the catalysts at least four times has not shown any reduction in activity.

糠醛的催化转移氢化为糠醇被认为是非常重要的工业过程。在这项工作中，通过共沉淀制备了负载在MgO-Al ₂ O ₃催化剂上的非贵金属Cu ，并显示出在近临界异丙醇中将糠醛转化为糠醇的出色催化性能。通过X射线衍射（XRD），耦合等离子体发射光谱法（ICP-OES）研究了Cu状态（还原度和分散度）和Cu / MgO-Al ₂ O ₃中负载量，催化剂酸度的影响， N ₂吸附和解吸（N ₂ -BET）和程序升温的氨（NH ₃-TPD），导致产生高活性的糠醇。结果表明，糠醇的选择性受到铜态，路易斯酸度，反应温度和反应时间的影响。路易斯酸和金属介导的加氢机理表明，铜负载量和催化剂路易斯酸度之间的理想平衡已显着影响了活性。已经获得了几乎100％的糠醛转化率和89.3％的糠醇产率。循环测试表明所制备的催化剂是稳定的，其中将催化剂循环至少四次并未显示出活性的任何降低。