通过使用离子液体的提取蒸来分离二甲基碳酸盐和n-propanol的机制研究和工艺设计
Chao Sun1, Bin Peng1, Feng Xue1
1Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Weifang, 262700, China.
Journal of environmental management
|February 18, 2026
概括
提取蒸 (ED) 有效地分离了亚热. [EMim][DEP]显示出优越的提取能力,导致更高效和环保的分离过程,降低成本和排放.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 分离过程 分离过程.
- 计算化学计算化学
背景情况:
- 亚热热组混合物带来了分离的挑战.
- 提取蒸 (ED) 是一个关键的分离技术.
- 提取剂的选择对于ED的效率至关重要.
研究的目的:
- 选和识别最佳的提取剂以进行亚热分离.
- 使用分子动力学阐明提取机制.
- 为提高效率和可持续性设计和优化提取蒸工艺.
主要方法:
- 对于最初的提取剂选,COSMO模型和量子化学 (QC) 计算.
- 试验性蒸汽液体平衡 (VLE) 数据采集.
- 分子动力学 (MD) 模拟用于机制阐明.
- 阿斯Plus过程模拟和多目标优化.
- 热集成用于过程改进.
主要成果:
- [EMim][DEP]被确定为具有最高容量的提取剂.
- 在101.32kPa时获得的DMC-NPA-[EMim][DEP]/DMSO/EG/[EMim][BF4]的VLE数据.
- MD模拟阐明了提取剂的机制.
- 基于[EMim][DEP]的ED过程显示,与DMSO相比,TAC和排放量较低.
- 优化ED工艺与热集成实现了TAC (11.45%) 和排放 (17.16%) 的显著降低.
结论:
- [EMim][DEP]是一种高效的提取剂,用于通过ED分离亚热.
- 开发的ED工艺提供了更好的经济和环境性能.
- 过程优化和热集成进一步提高了可持续性和成本效益.
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