废弃异醇的回收和再利用 CO2 可切换的深溶解剂
Ting-Wei Lee1, Yu-Hui Su1, Chiaying Chen1
1Department of Environmental Engineering, National Chung Hsing University, Taichung City 402, Taiwan.
The Science of the total environment
|June 22, 2023
概括
废弃的异醇 (IPA) 使用一种新型的可转换CO2的深度环氧溶剂进行回收. 这种方法有效地将IPA与水分开,使其能够作为替代燃料重新使用.
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
- 分离科学 分离科学
背景情况:
- 工业废物流产生大量的异醇 (IPA),需要有效的回收方法.
- IPA与水的亚热热态行为使其分离和回收复杂化.
- 经济和环境驱动因素强调需要可持续的IPA废物管理.
研究的目的:
- 开发一种新的,具有成本效益和环保的方法,用于将IPA与水性废物分离.
- 为了研究可转换二氧化碳的深层性溶剂 (DES) 对于IPA回收的有效性.
- 探索回收IPA作为替代燃料组件的潜力.
主要方法:
- 一种可切换二氧化碳的单乙胺-布坦醇深溶解剂 ([MEA][BuOH]) 被合成和特征化.
- 评估了溶剂在环境温度下将IPA与水分离的性能.
- 分析了影响IPA捕获的物理和化学特性,如粘度和分子间相互作用.
主要成果:
- [MEA][BuOH] DES通过形成醇-IPA混合物,在将IPA与水分离方面表现出卓越的性能.
- 可切换的溶剂系统促进了快速混合和容易分离,结合了同质和异质系统的优势.
- 有效的IPA捕获归因于[MEA][BuOH]的低粘度,醇和IPA的相似物理特性,以及结相互作用.
结论:
- 开发的基于DES的过程为回收废物IPA提供了一个低成本,节能和环保的回收途径.
- 回收的IPA,作为一个醇-IPA混合物,显示了作为替代燃料的添加剂或替代品的使用潜力.
- 这种方法解决了废物IPA的环境危害,同时促进了资源循环.
相关概念视频
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