Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5410602 | Journal of Molecular Liquids | 2015 | 6 Pages |
Abstract
A protic ionic liquid (IL), diethanolamine glycinate ([DEA][GLY]), was synthesized and characterized. Its physical properties, including density, viscosity, surface tension, conductivity and refractive index, were determined. CO2 solubility in [DEA][GLY] IL was also measured. Performances of [DEA][GLY] IL in absorbing CO2 in a bubble column were evaluated. The synthesized [DEA][GLY] is an amino acid-functionalized IL with dual groups of ammonium and amino. There was a good CO2 solubility in the IL at room temperature and atmospheric pressure, much better than the traditional ILs. Pure and aqueous [DEA][GLY] ILs are good CO2 absorbents. CO2 partial pressure and IL concentration have a significant impact on their absorption performance. [DEA][GLY] had an obvious advantage over the conventional ILs for CO2 absorption.
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Authors
Jian-Gang Lu, Zhen-Yu Lu, Liu Gao, Shuang Cao, Jia-Ting Wang, Xiang Gao, Yin-Qin Tang, Wen-Yi Tan,