Carbon dioxide absorption studies using amine-functionalized ionic liquids

CO2 absorption studies in amino acid-anion based ionic liquids

“…Another reason is that in the case of non-functionalized ILs, imidazolium-cation based ILs are extensively studied in the open literature due to their relatively lower cost compared to other cation-based ILs. Furthermore, our previous study [27] showed that although phosphonium cation-ILs have higher CO 2 solubility in terms of mole basis (mol CO 2 /mol IL) than the imidazolium-cation based ILs, the CO 2 solubility in terms of volume and mass basis (more important parameters from industrial and economics perspective) of the IL is lower for phosphonium cation-ILs relative to imidazolium-cation [bmim] [LYS]. The molecular structures of the aminate anions are provided in Table 2.…”

“…In our previous study, we have reported the CO 2 absorption studies in some primary and tertiary amine functionalized imidazolium cation ILs with the anions [BF 4 ], [PF 6 ] and [TF 2 N] [27]. Amine functionalized imidazolium cation increased the CO 2 absorption capacity considerably by 300% compared to non-functionalized ILs [27].…”

Density and viscosity of aqueous mixtures of N-methyldiethanolamines (MDEA), piperazine (PZ) and ionic liquids

“…When the concentration of MDEA was being fixed to 4 mol/L, α and β expressions for MDEA + PZ + OTf mixtures are shown as in Eqs. (14) and (15). After determining the both parameters, α and β, the density of mixture was evaluated using Eq.…”

“…Ionic liquids (ILs) are a category of compounds which are made up entirely of ions and are liquid at or below process temperatures and have low melting points [12]. ILs are proposed as potential solvents for energy efficient gas separation because of their unique properties of broad liquid range, thermal stability, closely zero volatility and almost high CO 2 solubility [13,14]. Recent research [2,15,16] on the application of room-temperature ionic liquids (RTILs) as non-volatile solvent promotes them to be used as CO 2 capture solvent.…”

Synthesis of a New Cu-Aluminosilicate Catalyst for CO2 Capture and Conversion to Hydrocarbons

“…Research studies have focused on either capturing the gas by using chemical absorption, adsorption, biological treatment or separation using membrane or conversion of CO2 to hydrocarbons and other valuable chemicals [1][2][3][4][5][6][7][8]. Hydrogenation of CO2is a promising approach to convert CO2to methane and higher hydrocarbons over a wide range of catalysts.…”