Carbon dioxide capture by a dual amino ionic liquid with amino-functionalized imidazolium cation and taurine anion

Use of monoethanolamine (MEA) for CO 2 capture in a global scenario: Consequences and alternatives

“…SO 2 can also modify the capacity of CO 2 absorption in ionic liquids since recent research has shown that large amounts of SO 2 can be dissolved in ionic liquids reversibly, which is interesting when aiming at eliminating this component from gas streams but it may compete with CO 2 when the latter is the target compound [20,21,61]. Some values of CO 2 [55]; 0.32-0.72 mol-CO 2 /mol-IL for some amino acid-anion based ILs and 0.1-1.26 mol-CO 2 /mol-IL for other aminate ILs [49]. In addition, mixing ionic liquids with amines could result in lower vapor pressure in comparison with the only use of the amine and, a reduction of the heat of vaporization in the regeneration step.…”

Investigation of the absorption performance and viscosity for CO2 capture process using [Bmim][Gly] promoted MDEA (N-methyldiethanolamine) aqueous solution

“…The absorption performance of CO 2 in MDEA- [Bmim][Gly] aqueous solutions was measured at 1 atm and temperatures ranging from 303.2 K to 323.2 K. The saturated solubilities and CO 2 loadings are shown in Table 2 et al [17] and Zhang et al [23] showed that high viscosity of AAIL may sometimes contribute to nonideal absorption results. Gao et al [26] demonstrated that the increase of the concentration of amine and AAIL may lead to higher viscosity, thus limits the gas diffusion and hinders the absorption.…”

“…Jacauemin et al [13] showed that CO 2 was highly soluble in 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim] [BF 4 ]) at pressures close to atmospheric. Xue et al [17] synthesized a dual amine room temperature ionic liquid, [aemmim] [Tau], and found that its absorption capacity reached about 0.9 mol CO 2 per mole ionic liquid at ambient pressure. Moreover, the mixtures of FILs and amines can preserve the desired property of FILs for CO 2 capture, e.g., Ahmaday et al [18] showed that under certain conditions, the presence of FILs increased the initial rate of CO 2 absorption in MDEA aqueous solution.…”

Regeneration performance and absorption/desorption mechanism of tetramethylammonium glycinate aqueous solution for carbon dioxide capture

“…In order to introduce chemical reaction, a variety of ILs were integrated with ions incorporating functional groups (Lu et al, 2012;Zhang et al, 2013c). Natural occurring amino acids (AA), which are easily obtained, bio-compatible and bio-degradable, are considered as an alternative for their amino moiety, thereby have drawn attention to new ILs design (Xue et al, 2011). A series of AA based ILs (AAILs) were prepared and tested for CO 2 capture (Fukumoto et al, 2005;Zhang et al, 2006).…”