The study on thermodynamic properties and applications of CO2 absorption of ionic liquid [Emim][Ac]-MDEA binary system
ZHANG Qing-guo
CAI Si-yi
LAN Ya-lin
ZHANG Xue-lei
ZHANG Xin-yuan
ZHENG Xiao-lei
Abstract：A new mixed solution system of 1 -ethyl-3 -methylimidazolium acetate( [Emim][Ac ]) and methyldiethanolamine ( MDEA) were prepared. The physico-chemical properties of density,viscosity the mixed system were determined at different temperature. The temperature dependences of the viscosities for the system were graphically described by the Vogel-Fulcher-Tamman ( VFT) equation. To investigate the influences of internal interactions on the system properties,the excess volume,and DFT calculations were employed. The CO2 absorption capacities for binary solutions are measured under the atmospheric pressure of CO2 for various compo-sitions,the influence of compositions and time on the properties of CO2 absorption was studied. Internal interac-tion and the effect of CO2 of the binary system was studied by density functional theory. Experiments have shown that binary system has a strong CO2 absorption capacity,great potential applications.
Keywords：ionic liquidbinary systemCO2 absorptionthermodynamic propertiesinteraction
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 41-48 )