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Highly Selective Conversion of Furfural to Furfural Alcohol or Levulinate Ester in One Pot over ZrO2@SBA-15 and Its Kinetic Behavior
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-03-31 , DOI: 10.1021/acssuschemeng.9b07512 Junhua Zhang 1 , Yao Liu 1 , Shibo Yang 1 , Junnan Wei 2 , Liang He 1 , Lincai Peng 1 , Xing Tang 2 , Yonghao Ni 3
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-03-31 , DOI: 10.1021/acssuschemeng.9b07512 Junhua Zhang 1 , Yao Liu 1 , Shibo Yang 1 , Junnan Wei 2 , Liang He 1 , Lincai Peng 1 , Xing Tang 2 , Yonghao Ni 3
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Biorefinery for the purpose of producing biofuels, chemicals, and materials has received much attention. Furfural alcohol (FOL) and levulinate ester (LE) are important biomass-derived platform chemicals, and they are produced from sugar-based furfural (FAL). Unfortunately, the two products are often obtained separately in different reaction systems, which is undesirable; furthermore, it is of significant practical interest to control their selectivity so that the desired product can be accumulated in high yields. Herein, we present an efficient method for the highly selective conversion of FAL to FOL or isopropyl levulinate (IPL) in a one pot system using isopropanol as the hydrogen source and ZrO2@SBA-15 as a bifunctional catalyst with both Lewis acid and Brønsted acid sites. Under optimized reaction conditions, high yields of FOL and IPL in up to 90.4% and 87.2%, respectively, were obtained. Based on the experimental results, a kinetic model describing the catalytic conversion of FAL into FOL and IPL process has been established, which has a good correlation (R2 > 0.92) between the measured and predicted data. The developed kinetics can provide an effective tool to monitor the process and tailor the process conditions to obtain the desired product.
中文翻译：
ZrO 2 @ SBA-15上一锅中糠醛向糠醛醇或糠醛酸酯的高选择性转化及其动力学行为
以生产生物燃料，化学物质和材料为目的的生物精炼受到了广泛的关注。糠醛醇（FOL）和乙酰丙酸酯（LE）是重要的生物质衍生平台化学品，由糖基糠醛（FAL）制成。不幸的是，两种产物通常是在不同的反应体系中分别获得的，这是不希望的。此外，控制它们的选择性以使所需产物能够以高收率积累是非常重要的实践意义。在这里，我们提出了一种在使用异丙醇作为氢源和ZrO 2的单锅系统中将FAL高度选择性转化为FOL或乙酰丙酸异丙酯（IPL）的有效方法。SBA-15作为具有路易斯酸和布朗斯台德酸位的双功能催化剂。在优化的反应条件下，FOL和IPL的产率分别高达90.4％和87.2％。根据实验结果，建立了描述FAL催化转化为FOL和IPL过程的动力学模型，该模型在实测数据和预测数据之间具有良好的相关性（R 2 > 0.92）。所开发的动力学可以提供有效的工具来监控过程并调整过程条件以获得所需的产品。
更新日期：2020-03-31
中文翻译：
ZrO 2 @ SBA-15上一锅中糠醛向糠醛醇或糠醛酸酯的高选择性转化及其动力学行为
以生产生物燃料，化学物质和材料为目的的生物精炼受到了广泛的关注。糠醛醇（FOL）和乙酰丙酸酯（LE）是重要的生物质衍生平台化学品，由糖基糠醛（FAL）制成。不幸的是，两种产物通常是在不同的反应体系中分别获得的，这是不希望的。此外，控制它们的选择性以使所需产物能够以高收率积累是非常重要的实践意义。在这里，我们提出了一种在使用异丙醇作为氢源和ZrO 2的单锅系统中将FAL高度选择性转化为FOL或乙酰丙酸异丙酯（IPL）的有效方法。SBA-15作为具有路易斯酸和布朗斯台德酸位的双功能催化剂。在优化的反应条件下，FOL和IPL的产率分别高达90.4％和87.2％。根据实验结果，建立了描述FAL催化转化为FOL和IPL过程的动力学模型，该模型在实测数据和预测数据之间具有良好的相关性（R 2 > 0.92）。所开发的动力学可以提供有效的工具来监控过程并调整过程条件以获得所需的产品。
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