从果糖中增强5-基甲基的产量,使用三甲基化基酸性深性溶剂:优化和酸性影响
Jiuhang Song1, Haotian Yuan1, Yinglin Mai1
1School of Chemical Engineering and Light Industry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China.
ChemPlusChem
|October 4, 2024
概括
这项研究引入了酸性深溶剂 (ADESs) 以有效地将果糖脱水为5-基甲基 (5-HMF). 这种新的方法实现了高产量和选择性,最大限度地减少了生物质转化不必要的副产品.
科学领域:
- 绿色化学和生物质转化
- 可持续的化学合成
- 平台化学生产平台 化学生产平台
背景情况:
- 5-基甲基 (5-HMF) 是一种重要的生物质衍生平台化学物质,将可再生原料连接到有价值的产品.
- 对于可持续的化学工业来说,5-HMF的高效和选择性合成至关重要.
- 传统方法往往遭受低产量,副产品的形成,和恶劣的反应条件.
研究的目的:
- 开发一种新高效的方法,从果糖中合成5-氧甲基 (5-HMF).
- 为了利用基于三乙化 (TEBAC) 的酸性深溶剂 (ADES) 进行果糖脱水.
- 为了优化反应条件以获得高的5-HMF产量和选择性,同时最大限度地减少副产品的形成.
主要方法:
- 通过使用基于新型三乙化 (TEBAC) 的酸性深溶解剂 (ADES) 的果糖脱水合成5-HMF.
- 优化反应参数,包括温度,时间,TEBAC:酸比率和果糖负载.
- 使用哈梅特酸度函数对ADES酸度进行分析,以将酸度与脱水效率相关联.
主要成果:
- 在90°C下4.5小时以2:3的TEBAC:酸比率和1重%的果糖负载达到97.77±3.20%的最大5-HMF产量.
- 76.67±0.33%和73.51±1.14%的高产量得到了更高的果糖负载 (10%和20%),证明了可扩展性.
- 开发的ADES系统显著抑制了酸 (LA) 和酸 (FA) 副产品的形成.
结论:
- 基于三乙化 (TEBAC) 的酸性深溶剂 (ADES) 为从果糖中生产5-HMF提供了高效和选择性的途径.
- DES的战略设计,控制债券捐赠者和接受者,是实现卓越性能的关键.
- 这种方法为工业生物质转化提供了一个有希望,可扩展和可持续的替代方案,减少了浪费.
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