文献类型：期刊文献

英文题名：Physical absorption of carbon dioxide in imidazole-PTSA based deep eutectic solvents

作者：Qin, Hao[1];Song, Zhen[2];Cheng, Hongye[1];Deng, Liyuan[3];Qi, Zhiwen[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Sch Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Otto von Guericke Univ, Proc Syst Engn, Univ Pl 2, D-39106 Magdeburg, Germany;[3]Norwegian Univ Sci & Technol, Dept Chem Engn, Sem Saelandsvei 4, N-7491 Trondheim, Norway

年份：2021

卷号：326

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：;EI(收录号：20210309783221);WOS:【SCI-EXPANDED(收录号:WOS:000636833000063)】；

基金：The financial support from National Natural Science Foundation of China (21861132019, 21776074, and 21978096) and Natural Science Foundation of Shanghai (19ZR1412600) is greatly acknowledged. Z. S. gratefully acknowledges the support of the Sino-German joint research project leaded by Deutsche Forschungsgemeinshaft (DFG) under the grants SU 189/9-1.

语种：英文

外文关键词：Halogen-free deep eutectic solvent; CO2 solubility; Solubility fitting; COSMO-RS evaluation; Interaction analysis

摘要：Capture of CO2 with high efficiency is essential to tackle the global warming issue that has aroused widespread attention. Herein we employed the halogen- free deep eutectic solvents (DESs) consisting of imidazole (Im) and p-toluenesulfonic acid (PTSA) to absorb CO2. The CO2 solubility in [3Im:PTSA], [3.5Im:PTSA], and [4Im: PTSA] is measured in the range of temperature from 303.15 to 333.15 K and pressure from 110 to 1500 kPa. Henry's constants of H-x and H-m and thermodynamic properties of Delta solG, Delta H-sol, and Delta S-sol are correlated from the experimental data. The comparison between the studied DESs and the reported solvents is performed based on Hm. Afterwards, the experiment-dependent Jou and Mather empirical model and fully predictive COSMO-RS model are used to calculate the CO2 solubility, which are compared with the experimental results. Finally, the interaction energies between CO2 and DESs, as indicated bymisfit, hydrogen bond, and van der Waals energies, are calculated by COSMO-RS to illustrate the absorption mechanism. (C) 2021 Elsevier B.V. All rights reserved.