Characterization of amide–thiocyanates eutectic ionic liquids and their application in SO2 absorption

Solubilities of carbon dioxide in the eutectic mixture of levulinic acid (or furfuryl alcohol) and choline chloride

“…The scope of HBD has been expanded to include alcohols [18], sugars [19], organic acids [20], and amides [21], while HBA merely focuses on quaternary ammonium salts [22,23] and quaternary phosphium salts [24]. DESs were also widely used as media in chemical reaction [25][26][27], electro-deposition [28,29] and extraction separation [30][31][32][33] with encouraging results. Recent works explored the possibility of DESs as the absorbents for CO 2 capture.…”

Properties for binary mixtures of (acetamide + KSCN) eutectic ionic liquid with ethanol at several temperatures

“…The density values of binary mixtures of (acetamide + KSCN) (3:1) with ethanol are listed in table 3. It can be seen from table 3 that at the same ethanol fraction, the density values always decrease with an increase of temperature, and the property is similar to the pure EIL [15]. The densities decrease with the increase of mole fraction of ethanol (x 1 ) at a constant temperatures, and the fraction dependence is nonlinear.…”

“…(Acetamide + KSCN) EIL were prepared according to literature method [15]. The water content determined by Karl Fischer analysis was less than 0.1%.…”

“…Data on the liquid region, decomposition temperature, density, viscosity and electrical conductivity are presented, and these are shown to be significantly similar to traditional ILs. Furthermore, (acetamide + KSCN) has unprecedented high SO 2 absorption capacity of 0.588 g/g at T = 293.15 K and 1 atm, showed promising industrial application prospects [15]. Considering from the industrial angle, the interactions between ILs with other molecular solvents, among which are alcohols, are indispensable for the design of practical application.…”

“…Therefore, it is expected that an EIL prepared from KSCN as a salt has a high absorption of SO 2 . Thus, the eutectic point of the mixtures of acetamide and KSCN was determined by cooling curve method, and then the (acetamide + KSCN) EIL with a eutectic point of T = 278.15 K was prepared at 3:1 mol ratio of acetamide and KSCN in our lab [15]. According to the classification of EIL by Abbott (acetamide + KSCN) belongs to type IV eutectics [8].…”