Abstract The use of lignocellulosic biomass in the chemical industry can significantly contribute to respect the various international agreements on climate change. One of the most promising platform molecules issued from the lignocellulosic biomass hydrolysis is γ-valerolactone (GVL). GVL can be upgraded to valuable chemicals and produced by the hydrogenation of alkyl levulinates. Although these reactions are widely studied, seldom research focused on the solvent effect. To fill this gap, the effect of three different reaction mixtures with an excess of butyl levulinate (BL), of butanol and GVL was studied on the kinetics of BL hydrogenation to GVL over Ru/C. PC-SAFT shows that the solubility of hydrogen is not constant during the reaction progress, and it was taken into account. To allow a fair comparison, kinetic models were developed using Bayesian statistics for each reaction mixture. The best performances were obtained when the reaction mixture has an excess of GVL.

中文翻译：

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溶剂对乙酰丙酸正丁酯加氢生成γ-戊内酯动力学的影响

摘要 在化学工业中使用木质纤维素生物质可以极大地促进遵守有关气候变化的各种国际协议。从木质纤维素生物质水解产生的最有前途的平台分子之一是γ-戊内酯（GVL）。GVL 可以升级为有价值的化学品，并通过乙酰丙酸烷基酯的氢化生产。尽管这些反应被广泛研究，但很少有研究集中在溶剂效应上。为了填补这一空白，研究了含有过量乙酰丙酸丁酯 (BL)、丁醇和 GVL 的三种不同反应混合物对 Ru/C 上 BL 氢化成 GVL 动力学的影响。PC-SAFT 表明在反应过程中氢的溶解度不是恒定的，因此被考虑在内。为了公平比较，使用贝叶斯统计为每个反应混合物开发动力学模型。当反应混合物具有过量的 GVL 时获得最佳性能。