Efficient Conversion of Cellulose to 5‐Hydroxymethylfurfural in NaHSO4/ZrO2/H2O‐THF Biphasic System,ChemistrySelect

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Efficient Conversion of Cellulose to 5‐Hydroxymethylfurfural in NaHSO4/ZrO2/H2O‐THF Biphasic System
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-11-21 , DOI: 10.1002/slct.201802029
Xiaowei Fang _{1,

2,

3,

4} , Ze Wang _{1,

2} , Bo Yuan _{1,

2,

3} , Wenli Song _{1,

2} , Songgeng Li _{1,

2} , Weigang Lin _{1,

2,

4}

Affiliation

5‐hydroxymethylfurfural (HMF) is an important bio‐based platform chemical for liquid fuel production. Herein, efficient conversion of cellulose to HMF in NaHSO₄/ZrO₂/H₂O‐THF biphasic system was investigated with a high HMF yield up to 86.5%. In the co‐catalytic system, H⁺ ions given from NaHSO₄ was promotive to all steps of the cellulose‐to‐HMF conversion; abundant alkaline sites of ZrO₂ was particularly favorable to the glucose‐to‐fructose isomerization. The accelerated conversion of glucose as well as the fast extraction of HMF from aqueous phase to tetrahydrofuran (THF) phase, favored the inhibition of humins which was generated from condensation between glucose and HMF. Only a trace amount of humins over ZrO₂ was detected after reaction, which guaranteed the reusability of ZrO₂ in six running experiments without any post‐treatment. The good reusability of ZrO₂, the low ‐cost of NaHSO₄, and the biomass‐derived THF were advantageous for potential industrial application.

中文翻译：

在NaHSO4 / ZrO2 / H2O-THF双相系统中将纤维素有效转化为5-羟甲基糠醛

5-羟甲基糠醛（HMF）是用于液体燃料生产的重要的生物基平台化学品。本文研究了在NaHSO ₄ / ZrO ₂ / H ₂ O-THF双相系统中纤维素向HMF的有效转化，HMF收率高达86.5％。在助催化体系中，NaHSO _4产生的H ⁺离子促进了纤维素向HMF转化的所有步骤。ZrO _2的丰富碱性位特别有利于葡萄糖到果糖的异构化。葡萄糖的加速转化以及HMF从水相到四氢呋喃（THF）相的快速萃取，有利于抑制由葡萄糖和HMF缩合产生的腐殖质。反应后仅检测到ZrO _2上的微量腐殖质，这确保了六个运行实验中ZrO ₂的可重复使用性，而无需任何后处理。ZrO ₂的良好可重复使用性，NaHSO ₄的低成本以及生物质衍生的THF有利于潜在的工业应用。

更新日期：2018-11-21

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