设计和验证高吞吐量减少催化分化方法的设计和验证
Jacob K Kenny1,2,3, Sasha R Neefe1,3, David G Brandner1,3
1Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.
JACS Au
|June 28, 2024
概括
一种新的高通量还原性催化分化 (HTP-RCF) 方法使得每次实验可以进行240次反应,显著提高了宁脱聚合选效率. 这一进步加速了对生物质样本的分析,以优化单体和石油产量.
科学领域:
- 生物质转化和生物能源
- 催化和反应工程 催化和反应工程
- 绿色化学 绿色化学
背景情况:
- 降解催化分化 (RCF) 是有效的素提取和脱聚合.
- 在批量反应器中,传统的基板级RCF的吞吐量低 (每天1-6个反应),限制了研究进展.
- 高压反应需要专门的设备,这给可扩展性带来了挑战.
研究的目的:
- 开发一种高吞吐量RCF (HTP-RCF) 方法,以提高实验吞吐量.
- 为了选无RCF的溶剂混合物和催化剂载荷.
- 建立低材料负载的高效分析方法.
主要方法:
- 开发了一个模块化的HTP-RCF系统,使用哈斯特洛伊反应板中的1毫升井,每次实验可进行240次反应.
- 选的溶剂混合物 (例如,异醇/甲醇) 和树生物质的催化剂加载.
- 实施并行过,洗,干燥和1HNMR光谱用于样本分析.
主要成果:
- 确定了一种1:1的异醇/甲醇溶剂系统,产生最佳的单体和4-基替代单体选择性.
- 在更大的75毫升批量反应堆中,验证的HTP-RCF结果具有相同的单体产量.
- 选了50个交换草样本,显示了单体产量 (21-36%),S/G比率 (0.41-0.93) 和油产量 (40-75%) 的广泛变化.
结论:
- 该HTP-RCF系统显著提高了选红素脱聚合条件的吞吐量.
- 开发的分析管道有效地处理低材料样本,以快速表征.
- 这种方法可以加速发现最佳的催化剂和反应条件,以实现生物质的价值化.
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