Ultrasound-assisted of alkali chloride separation using bulk ionic liquid membrane

Shekaari, Hemayat; Golmohammadi, Behrang

doi:10.1016/j.ultsonch.2021.105549

Cited by 1 publication

(1 citation statement)

References 34 publications

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“…The values of the excess molar volume V m E for the binary mixture were calculated using densities as the following equation: V m E = ∑ i = 1 2 x i M i ρ − prefix∑ i = 1 2 x i M i ρ i where x i and M i are the mole fraction and molar mass of the components of the mixture, respectively, whereas ρ and ρ i stand for the density of mixture and the densities of the pure components, respectively. These values have been collected in Table S1 in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

Thermodynamic Properties of Binary Mixtures Containing Ionic Liquid 1-Butyl-3-methylimidazolium Thiocyanate and Ethanolamines at Different Temperatures: Measurement and PC-SAFT Modeling

Gharehzadeh Shirazi,

Shahabadi,

Shekaari

et al. 2023

J. Chem. Eng. Data

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Thermodynamic properties of liquid absorbents are important for industrial applications. Ionic liquids (ILs) are more efficient alternatives to organic solvents that are used for CO2 absorption and storage. The IL, 1-butyl-3-methylimidazolium thiocyanate ([BMIM] [SCN]) with ethanolamines are considered as an efficient material for gas absorption. The density and speed of sound for a full-range concentration of binary ([BMIM] [SCN] + ethanolamine (MEA)/diethanolamine (DEA)/triethanolamine (TEA)) systems have been measured at (288.15 – 318.15) K, and excess molar properties as nonideality of the mixtures has been calculated. The conductor-like screening model (COSMO) as a microscopic approach has been used to calculate the PC-SAFT equation of state parameters, prediction the density of the studied mixtures, and compare the experimentally obtained parameters of PC-SAFT. The excess molar volumes for systems containing IL + monoethanolamine are positive while negative for DEA and TEA. Also, the excess isentropic compressibilities for the studied mixtures are negative at all temperatures. The PC-SAFT equation of state as a microscopic approach for interpreting the molecular interactions is an efficient model in predicting thermodynamic properties. The results indicate that increasing OH groups of ethanolamines enhances their interactions with IL molecules.

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