稳定且耐水的生物质衍生5-基甲基 (HMF) 和levulinic 酸的深度乳化溶剂
Grazia Isa C Righetti1, Sara Rozas2,3, Maria Enrica Di Pietro1
1Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, 20133 Milano, Italy.
ACS sustainable chemistry & engineering
|February 27, 2026
概括
由5-甲 (HMF) 和酸 (LEV) 形成的新型液相作为可持续溶剂起作用. 这种生物衍生系统增强了从生物质中提取HMF,为生物炼油厂提供了更绿色的替代方案.
科学领域:
- 绿色化学和可持续的过程
- 生物质价值化和生物精炼
- 化学工程和材料科学 化学工程和材料科学
背景情况:
- 可持续的生物质利用需要更绿色的开采系统.
- 5-基甲基 (HMF) 和酸 (LEV) 是重要的生物衍生平台分子,通常在生物质加工过程中共同生产.
- 这些分子的高效和环保的回收方法对于生物炼油厂的发展至关重要.
研究的目的:
- 研究HMF和LEV之间自发形成稳定的液相.
- 描述这个HMF-LEV液相的物理化学特性和行为.
- 评估其作为生物提炼中HMF提取的可持续溶剂的潜力.
主要方法:
- 差分扫描热量计 (DSC) 用于热分析.
- 热力学建模以了解相位行为.
- 核磁共振 (NMR) 光谱学,分子动力学 (MD) 和密度功能理论 (DFT) 用于结构和动态分析.
主要成果:
- 在广泛的组成范围内形成HMF和LEV的稳定液相,在x_HMF = 0.39 (258 K) 附近表现出优化行为.
- 这种HMF-LEV混合物表现出类似于深度环氧溶剂 (DES) 的特性,即使含水量低,也保持液态.
- HMF和LEV之间的键驱动非理想的混合;水增强了优性成分的结构.
结论:
- HMF-LEV液相可以在生物质替代物中*in situ*生成,显著提高了HMF提取效率.
- 这种系统消除了对额外有机提取剂的需求,提供了溶剂最小化的回收路径.
- 在HMF-LEV系统是一个有前途的,生物衍生液体平台,用于资源高效的生物炼油厂计划.
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