酸催化水热预处理与酸性/性深度欧特溶剂提取之间的合效应用于小麦草分离
Na Pan1, Baiheng Jiang1, Jinguang Hu2
1College of Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China.
Bioresource technology
|July 28, 2023
概括
温和的热水预处理 (HP) 和性深度溶解剂 (DES) 有效地分成小麦. 这种两步过程最大限度地提高了纤维素回收和木质素的去除,以提高生物质的加工.
科学领域:
- 生物质的分化生物质的分化
- 绿色化学 绿色化学
- 纤维素的价值化 纤维素的价值化
背景情况:
- 纤维素分离是生物质价值化中的关键.
- 热水预处理 (HP) 和深度环热溶剂 (DES) 是新兴的技术.
- 优化顺序的HP和DES处理对于高效的分化至关重要.
研究的目的:
- 为了比较轻度HP和两种类型的DES对小麦碎的协同效应.
- 为了评估木质素和碳水化合物去除和纤维素回收.
- 评估富含纤维素的部分对进一步应用的潜力.
主要方法:
- 小麦被用p-toluenesulfonic酸催化剂进行轻度的热水预处理.
- 然后,预处理的生物质被处理为基于酸性胆化的DES或基于性胆氧化的DES.
- 量化了红素去除,半纤维素去除和纤维素回收.
主要成果:
- 使用0.3%p-TsOH的HP实现了接近100%的半纤维素去除和99.2%的纤维素回收.
- 性胆氧化 (DES) 与HP具有优越的合效应,达到75.6%的红素去除率,而酸性DES的去除率为31.2%.
- 性DES通过增强醇基组的胀和脱质化促进了素溶解.
结论:
- 轻度HP和性胆氧化DES的组合对于小麦草分成非常有效.
- 这种两步的方法可以提高纤维素的回收和木质素的去除,从而产生富含纤维素的部分,具有更大的加工潜力.
- 性DES显示出对可持续的纤维素酸纤维素分离有希望.
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