Journal
MATERIALS RESEARCH EXPRESS
Volume 9, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/2053-1591/ac47c6
Keywords
deep eutectic solvents; water content; CO2 capture; absorption; alcohol ammonia solution
Categories
Funding
- Science and Technology Department of Guizhou Province in China [QKHZC [2019] 2164]
Ask authors/readers for more resources
The absorption of CO2 by deep eutectic solvents is influenced by the water content, with tertiary amine systems showing enhanced absorption.
The existing CO2 absorption by deep eutectic solvents is limited by the unavoidable water absorption problem during use. In this study, we prepared three deep eutectic solvents with different alcohol aminations and added different water contents to discuss the effect of water content on the absorption of carbon dioxide by deep eutectic solvents. All deep eutectic solvents have a low melting point at room temperature as a liquid and have high thermal stability, where the choline chloride-diethanolamine deep eutectic solvents have a high viscosity. Anhydrous choline chloride-monoethanolamine deep eutectic solvents have the largest CO2 absorption, reaching 0.2715 g g(-1), and the absorption of CO2 by anhydrous choline chloride-N-methyldiethanolamine deep eutectic solvents is only 0.0611 g g(-1). Water content inhibited the absorption of CO2 in primary amine and secondary amine systems, whereas it enhanced the absorption of CO2 in tertiary amine systems, which was related to the reaction process of deep eutectic solvent and CO2.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available