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竹材催化转化制备5-羟甲基糠醛的研究进展

Catalytic Conversion of Bamboo for 5-Hydroxymethyl Furfural Production: A Review

  • 摘要: 5-羟甲基糠醛(HMF)是一种重要的平台化合物, 是制取生物液体燃料和其它许多重要精细化工品的前驱体, 由生物质制备HMF是生物质资源综合利用的研究热点之一。竹子具有生长快、成材周期短、产量高、一次种植即可连年持续利用的优点, 而且竹材中含有大量的纤维素, 纤维素水解可以转化得到葡萄糖, 而葡萄糖经脱水反应可以制备HMF。因此, 以竹材为原料催化转化制备HMF具有原料资源丰富和技术路线绿色可行的优势。为了实现竹材到HMF的高效转化, 催化体系的设计和选择是关键因素。本文对近年来利用竹材催化转化制备HMF的研究进行了综述, 主要从竹材的原料组成及特性出发, 首先对竹材的化学组成和微观结构进行分析, 再进一步阐述催化转化机理。特别是对均相催化剂、非均相催化剂和其他催化剂等不同催化剂类型对催化竹材转化制备HMF的影响机制进行了详细分析, 同时也对溶剂体系的选择进行了探讨。最后, 结合发展趋势, 指出了其未来发展方向, 为竹材制备HMF技术的发展与工业应用探索提供建设性意见。

     

    Abstract: 5-Hydroxymethyl furfural(HMF) was a kind of important platform chemical compound, which was a precursor for producing liquid biofuel and many other important fine chemicals. The synthesis of HMF from biomass was one of the hot topics in the comprehensive utilization of biomass resources. Bamboo has the advantages of fast growth, short mature period, high yield and continuous use for years after once planting, and it contains a mass of cellulose. Glucose could be obtained from hydrolysis of the nature abundant cellulose, and HMF could be prepared by dehydration of glucose. Therefore, the catalytic conversion of bamboo to produce HMF had the advantages of abundant raw materials resources and green feasible technical route. In order to realize the efficient conversion of bamboo to HMF, the design and selection of catalytic system were the key factors. In this paper, the research on the preparation of HMF by catalytic conversion of bamboo in recent years was reviewed. Starting from the composition and characteristics of bamboo raw materials, the chemical composition and microstructure of bamboo were analyzed firstly, and then, the catalytic conversion mechanism was further elaborated. In particular, the influence mechanism on the preparation of HMF from bamboo by homogeneous catalyst, heterogeneous catalyst and other catalysts was analyzed in detail. The choice of solvent system was also discussed. Finally, combined with the development trend, the future development direction of its technology was proposed, which provided constructive suggestions for the development and industrial application of bamboo-based HMF technology.

     

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