Foorginezhad Sahar, Yu Gangqiang, Ji Xiaoyan
Energy Science/Energy Engineering, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, Sweden.
Faculty of Environment and Life, Beijing University of Technology, Beijing, China.
Front Chem. 2022 Aug 10;10:951951. doi: 10.3389/fchem.2022.951951. eCollection 2022.
CO capture is essential for both mitigating CO emissions and purifying/conditioning gases for fuel and chemical production. To further improve the process performance with low environmental impacts, different strategies have been proposed, where developing liquid green absorbent for capturing CO is one of the effective options. Ionic liquids (IL)/deep eutectic solvents (DES) have recently emerged as green absorbents with unique properties, especially DESs also benefit from facile synthesis, low toxicity, and high biodegradability. To promote their development, this work summarized the recent research progress on ILs/DESs developed for CO capture from the aspects of those physical- and chemical-based, and COSMO-RS was combined to predict the properties that are unavailable from published articles in order to evaluate their performance based on the key properties for different IL/DES-based technologies. Finally, top 10 ILs/DESs were listed based on the corresponding criteria. The shared information will provide insight into screening and further developing IL/DES-based technologies for CO capture.
捕获二氧化碳对于减少二氧化碳排放以及净化/调节用于燃料和化学品生产的气体都至关重要。为了在低环境影响下进一步提高工艺性能，人们提出了不同的策略，其中开发用于捕获二氧化碳的绿色液体吸收剂是有效的选择之一。离子液体（IL）/低共熔溶剂（DES）最近作为具有独特性质的绿色吸收剂出现，特别是低共熔溶剂还具有合成简便、毒性低和生物降解性高的优点。为了促进它们的发展，这项工作从基于物理和化学的方面总结了最近开发的用于捕获二氧化碳的离子液体/低共熔溶剂的研究进展，并结合COSMO-RS预测已发表文章中未有的性质，以便根据不同基于离子液体/低共熔溶剂技术的关键性质评估它们的性能。最后，根据相应标准列出了前10种离子液体/低共熔溶剂。这些共享信息将为筛选和进一步开发基于离子液体/低共熔溶剂的二氧化碳捕获技术提供见解。
