Selective Conversion of Inulin into 5-Hydroxymethylfurfural and Levulinic Acid in Micropacked Bed Reactors,Industrial & Engineering Chemistry Research

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Selective Conversion of Inulin into 5-Hydroxymethylfurfural and Levulinic Acid in Micropacked Bed Reactors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2024-07-22 , DOI: 10.1021/acs.iecr.4c01517
Ruixue Zhang ₁ , Weiyao Yang ₁ , Hongda Zhang ₁ , Le Sang ₁ , Zhiping Zhao ₁

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This work presents the efficient, safe, and continuous production of 5-hydroxymethylfurfural (HMF) and levulinic acid (LA) from inulin in micropacked bed reactors (μPBRs) over HND-580. Through optimization reaction conditions, the highly selective production of fructose and LA from aqueous inulin and HMF from an inulin DMSO-water mixed solution can be achieved with respect to other reactor technologies. The highest yields of 89% for fructose, 81% for HMF, and 84% for LA can be obtained within a reaction time of 7.26 min. Polysaccharide inulin is used as the reaction substrate, and the space-time yield (STY) of HMF and LA in μPBRs is at least an order higher than that in conventional batch reactors. Subsequently, an intrinsic kinetic model for inulin conversion is established. The most predicted values show good agreement with the experimental results with a relative error of ±20%.

中文翻译：

在微填充床反应器中菊粉选择性转化为 5-羟甲基糠醛和乙酰丙酸

这项工作展示了在微填充床反应器 (μPBR) 中通过 HND-580 从菊粉高效、安全、连续地生产 5-羟甲基糠醛 (HMF) 和乙酰丙酸 (LA)。通过优化反应条件，相对于其他反应器技术，可以实现从菊粉水溶液中高选择性生产果糖和LA，以及从菊粉DMSO-水混合溶液中高选择性生产HMF。在 7.26 分钟的反应时间内，果糖、HMF 和 LA 的最高收率分别为 89%、81% 和 84%。使用多糖菊粉作为反应底物，μPBR 中 HMF 和 LA 的时空产率（STY）比传统间歇式反应器至少高一个数量级。随后，建立了菊粉转化的内在动力学模型。大多数预测值与实验结果吻合较好，相对误差为±20%。

更新日期：2024-07-22

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