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Thermodynamic properties of CO2 absorption in hydroxyl ammonium ionic liquids at pressures of (100-1600) kPa

K.A., Kurnia and F., Harris and C.D., Wilfred and M.I., Abdul Mutalib and T., Murugesan (2009) Thermodynamic properties of CO2 absorption in hydroxyl ammonium ionic liquids at pressures of (100-1600) kPa. [Citation Index Journal]

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Abstract

Solubility of CO2 in six hydroxyl ammonium ionic liquids 2-hydroxyethanaminium acetate [hea], bis(2-hydroxyethyl)ammonium acetate [bheaa], 2-hydroxy-N-(2-hydroxyethyl)-N-methylethanaminium acetate [hhemea], 2-hydroxyethanaminium lactate [hel], bis(2-hydroxyethyl)ammonium lactate [bheal], 2-hydroxy-N-(2-hydroxyethyl)-N-methylethanaminium lactate [hhemel] at temperatures (298.15, 313.15, and 328.16) K and pressures ranging from (100 to 1600) kPa was determined. From the experimental solubility data, the Henry's constant of CO2 for each hydroxyl ammonium ionic liquids was estimated and reported as a function of temperature. Furthermore, enthalpy and entropy of absorption were obtained from estimated Henry's constant. The results showed that the solubility increase with increasing pressure and decrease with increasing temperature and the solubility of CO2 in these six hydroxyl ammonium ionic liquids was in sequence: [hea] > [bheaa] > [hel] > [bheal] > [hhemel] > [hhemea]. © 2009 Elsevier Ltd. All rights reserved.

Item Type:Citation Index Journal
Uncontrolled Keywords:Ammonium acetate; Ammonium ionic liquids; Ammonium lactate; CO solubility; Henry's constant; Henry's constants; Hydroxyl ammonium ionic liquids; Solubility data; Absorption; Ammonium compounds; Enthalpy; Entropy; Ionization of liquids; Ions; Solubility; Ternary systems; Ionic liquids
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:485
Deposited By: Assoc Prof Dr Mohamed Ibrahim Abdul Mutalib
Deposited On:09 Mar 2010 02:02
Last Modified:19 Jan 2017 08:25

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