选择性催化化纤维素成,使用基于Ru的催化剂
Ceren Orak1, Aycan Sapmaz1, Aslı Yüksel1,2
1Department of Chemical Engineering, İzmir Institute of Technology, İzmir, Turkey.
Turkish journal of chemistry
|December 25, 2023
概括
这项研究探讨了从纤维素和葡萄糖等可再生能源中生产sorbitol,这是一个关键的平台化学物质,使用热水液化和以为基础的催化剂. Ru/AC证明了从纤维素中获得的酸盐产量最高.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 绿色化学 绿色化学
- 催化剂是一种催化剂.
背景情况:
- 比醇是一种来自可再生资源的有价值的平台化学物质.
- 水热液化 (HTL) 是生产平台化学品的一个有前途的方法.
- 开发高效的催化剂对于选择性酸盐生产至关重要.
研究的目的:
- 为了研究纤维素和葡萄糖的水热液化,用于生产酸盐.
- 为了评估各种基催化剂 (Ru/SiO2,Ru/AC,Ru/SBA-15,Ru/SBA-15-SO3) 的性能.
- 提出一种反应途径,用于酸盐的形成.
主要方法:
- 在亚临界条件下的纤维素和葡萄糖的热水液化.
- 使用了四种不同的以为基础的催化剂.
- 使用气体染色学质谱法 (GC-MS) 分析反应产物.
主要成果:
- 最高的纤维素转化率 (90%) 是通过Ru/SBA-15-SO3.3实现的.
- 使用Ru/AC.获得的纤维素 (6.2%) 产生的酸醇产量最高.
- 几乎完全的葡萄糖转化 (99.9%) 与所有测试的催化剂.
- 从葡萄糖 (3.8%) 中观察到的酸醇产量最高.
结论:
- 基于的催化剂是有效的sorbitol生产通过热水液化.
- 催化剂的选择显著影响不同原料的比醇产量.
- 通过GC-MS分析,能够阐明比醇形成的反应途径.
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