An Fe modified USY catalyst was built for ethanolysis of furfuryl alcohol to ethyl levulinate. Characterization results confirmed that Fe species was existed in the form of Fe₂O₃, and Fe/USY is modified by Fe₂O₃ in two aspects, viz., the strong acidic sites were sharply reduced, and also a large number of weak acid sites were generated. The first aspect effectively suppressed the oligomerization reaction of furfuryl alcohol and formation of diethyl ether, while the enhanced weak acid sites guaranteed activity of the catalyst. Finally, a 90.6% yield of ethyl levulinate was obtained under optimization conditions for four successive runs.

中文翻译：

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Fe改性USY催化剂对生物质糠醇的乙酸酯化反应。

建立了铁改性的USY催化剂，用于糠醇乙醇化为乙酰丙酸乙酯。表征结果证实，Fe以Fe ₂ O ₃的形式存在，Fe / USY被Fe ₂ O ₃修饰有两个方面，即强酸性部位急剧减少，并且大量弱酸性部位被还原。产生酸位。第一方面有效地抑制了糠醇的低聚反应和二乙醚的形成，而增强的弱酸位点保证了催化剂的活性。最终，在优化条件下连续四次运行获得了90.6％的乙酰丙酸乙酯收率。