Abstract The present work is aimed to produce γ-valerolactone (GVL) from ethyl levulinate hydrogenation over non-noble metal cobalt catalysts at atmospheric pressure in continuous process. Various supported (SBA-15, SiO2, Al2O3, ZrO2, and TiO2) cobalt catalysts were prepared by wet impregnation method and characterized by XRD, N2 physisorption, SEM, TEM, NH3-TPD, H2-TPR and H2-pulse chemisorption techniques. The yield of GVL follows the trend Co/SBA-15 > Co/SiO2 > Co/Al2O3 > Co/ZrO2 > Co/TiO2 similar to trend in active Co metal surface area. The catalytic activity of the supported Co catalyst is strongly influenced by the dispersion and particle size of the Co.

中文翻译：

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常压连续法在负载型 Co 催化剂上选择性加氢生物质乙酰丙酸乙酯为 γ-戊内酯

摘要 本工作的目的是在常压下，在非贵金属钴催化剂上，乙酰丙酸乙酯加氢连续生产γ-戊内酯（GVL）。采用湿法浸渍法制备了各种负载型（SBA-15、SiO2、Al2O3、ZrO2 和 TiO2）钴催化剂，并通过 XRD、N2 物理吸附、SEM、TEM、NH3-TPD、H2-TPR 和 H2-脉冲化学吸附技术进行了表征。GVL 的产率遵循 Co/SBA-15 > Co/SiO2 > Co/Al2O3 > Co/ZrO2 > Co/TiO2 的趋势，类似于活性 Co 金属表面积的趋势。负载型 Co 催化剂的催化活性受 Co 的分散性和粒径的强烈影响。