使用基于Ni-WO的催化剂"纤维素到乙烯糖醇"的定向解
Tong Su1, Daguo Wu1, Xinghua Zhang1
1Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University Nanjing 210096 People's Republic of China zhuangxz@seu.edu.cn.
RSC advances
|May 5, 2025
概括
研究人员开发了一种新的Ni-WO/SAPO-11催化剂,用于将纤维素转化为乙烯基醇. 优化反应条件显著增加了乙烯糖醇产量,为以石油为基础的生产提供了可持续的替代方案.
科学领域:
- 催化剂是一种催化剂.
- 可再生能源可再生能源是可再生能源.
- 绿色化学 绿色化学
背景情况:
- 纤维素是生物质的关键组成部分,是重要的可再生资源.
- 传统的乙烯基醇生产依赖于石油,这促使人们寻找可持续的替代品.
- 将纤维素有效转化为有价值的化学物质对于生物质利用至关重要.
研究的目的:
- 设计和优化用于纤维素转换的多功能Ni-WO/SAPO-11催化剂.
- 为了研究纤维素到乙烯糖醇合成的双重反应途径.
- 为了提高从纤维素生产乙烯糖醇的产量和效率.
主要方法:
- 一个多功能Ni-WO/SAPO-11催化剂的合成和表征.
- 优化催化剂处理参数和反应条件 (温度,还原温度).
- 使用XPS,TEM,TPD/TPR等技术分析反应产物,以了解催化机制.
主要成果:
- Ni-WO/SAPO-11催化剂通过水解,逆醇凝结和化有效地将纤维素转化为乙烯基醇.
- 乙烯基醇产量从4%增加到66.6%,温度从180°C上升到240°C.
- 500°C的还原温度优化了布伦斯特德酸度和W5+/W6+比率,增强了C-C裂变和乙烯糖醇产量.
结论:
- 优化的Ni-WO/SAPO-11催化剂在温和条件下能够有效地将纤维素直接化成乙烯糖醇.
- 催化剂的性能与其优化的酸度和散度有关.
- 这种催化系统促进了对纤维纤维素生物质的可持续利用,用于有价值的化学生产.
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