高效的5-基甲基的生产从果糖在S,N-化素碳固体酸的生产
Ziji Deng1, Jun Xu2, Shiyun Zhu3
1State Key Laboratory of Advanced Papermaking and Paper-based Materials, Plant Fiber Materials Science Research Center, South China University of Technology, Guangzhou 510640, China.
International journal of biological macromolecules
|April 18, 2025
概括
环保的基于木质素的碳固体酸 (LBCS) 有效地将果糖转化为5-基甲基 (HMF). 这种可持续的催化剂提供了高产量和稳定性,取代了污染的液体酸.
科学领域:
- 催化剂是一种催化剂.
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 传统的液酸催化用于5-基甲基 (HMF) 生产,给环境和设备带来了挑战.
- 开发可持续和高效的替代品对于生物质价值化至关重要.
研究的目的:
- 合成和评估一种新型的基于木质素的碳固体酸 (LBCS),与硫 (S) 和 (N) 元素一起配合.
- 调查LBCS用于将果糖转化为HMF的催化性能.
- 建立LBCS作为液酸催化剂的环保替代品.
主要方法:
- 基于的碳固体酸 (LBCS) 用硫酸和硫酸通过冰模板合成,然后碳化,激活和硫化.
- 合成的LBCS因其S,N含量和总酸度而具有特征.
- 在使用LBCS催化剂的DMSO/水系统中,将果糖转化为HMF进行了优化.
主要成果:
- 在LBCS催化剂中,S (3.75%) 和N (3.35%) 含量较高,总酸度为8.123 mmol/g.
- 优化条件导致>99%的果糖转化和91.91%的HMF产量.
- 催化剂表现出很好的可重复使用性,在5个循环后没有显著的停用.
结论:
- 合成的S,N联合化LBCS是一种高效和稳定的固体酸催化剂,用于将果糖转化为HMF.
- 这种方法提供了一种可持续和环保的HMF生产方法,利用木质生物质资源.
- 液体酸催化剂提供了传统液体酸催化剂的可行替代品,减少了污染和设备需求.
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