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在多功能深度欧特溶剂系统中,对纤维素的大气单分离和催化转化
Qiaolong Zhai1, Jie Li1, Kangze Miao1
1Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China.
International journal of biological macromolecules
|December 15, 2024
概括
这项研究介绍了一种使用深度性溶剂 (DES) 的单工艺,以高效地提升纤维素蛋白的价值. 该方法在温和条件下产生类单体,furfural和葡萄糖,促进生物提炼.
科学领域:
- 绿色化学 绿色化学
- 生物精炼是生物精炼的一种方式.
- 催化剂是一种催化剂.
背景情况:
- 纤维素生物质是一种丰富的可再生资源.
- 有效地将纤维素酸转化为有价值的化学物质仍然是一个挑战.
- 素,半纤维素和纤维素的价值化需要选择性和综合性过程.
研究的目的:
- 开发一种"一子"的三阶段工艺,用于基纤维素的价值化.
- 为了利用多功能深度温化溶剂 (DES) 进行生物质溶解和催化转化.
- 在温和的条件下从树脂纤维素生产类单体,furfural和葡萄糖.
主要方法:
- 使用由胆化物 (ChCl),乙烯糖醇 (EG) 和质子酸组成的DES开发了一种"一"三阶段工艺.
- 第1阶段:素和半纤维素的溶解,通过EG移植保存纤维素.
- 第二阶段:使用Ru/C催化剂对素进行催化解聚合. 第三阶段:催化水解半纤维素糖到.
主要成果:
- 该DES溶解了70%以上的木质素和78%的半纤维素,同时保留了纤维素以达到80%以上的葡萄糖产量.
- 催化性素脱聚化产生了13.8%的没有外部的G/S-和G/S-烯单体.
- 在优化条件下,从半纤维素糖中获得了36.4%的furfural产量.
结论:
- 开发的"一子"工艺使得在温和条件下高效和选择性基纤维素价值化成为可能.
- 多功能DES在生物质溶解和随后的催化转化中发挥着关键作用.
- 这种方法为生物提炼和生产有价值的化学品提供了一个可持续的途径.
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