TY - JOUR
T1 - Solubility of CO2 in Aqueous Solution of Newly Developed Absorbents
AU - Singh, P.
AU - Brilman, Derk Willem Frederik
AU - Groeneveld, M.J.
N1 - Open access. Proceedings of the 9th International Conference on Greenhouse Gas Control Technologies (GHGT-9), 16–20 November 2008, Washington DC, USA
PY - 2009
Y1 - 2009
N2 - The solubility of CO2 in various aqueous amine based solvents was determined at lower CO2 partial pressures. Cyclic capacity of various potential aqueous amine based solvents at 10 kPa CO2 partial pressure was determined by performing CO2 absorption at 30 ∘C, regeneration at 90oC and at 1 atmosphere. 1,7-Diaminoheptane and 1,6-Hexanediamine, N,N’-dimethyl was found to be having high cyclic loading of 0.81 and 0.85 moles CO2/moles amine respectively. Aqueous solution of 1,6-Hexanediamine, N,N’-dimethyl of 0.5 and 2.55 Mole/L concentration was selected for solubility study of CO2 at different partial pressure ranging from 1 up to 40 kPa, 30 ∘C and at 1 atmosphere. The solubilities of CO2 in aqueous 1,6-Hexanediamine, N,N’-dimethyl at 30oC were compared with those in aqueous solution of MEA with similar solution concentrations. The solubility of CO2 in 2.55 Mole/L 1,6-Hexanediamine, N,N’-dimethyl was found to be higher when compared to the 2.5 Mole/L MEA at lower CO2 partial pressure.
AB - The solubility of CO2 in various aqueous amine based solvents was determined at lower CO2 partial pressures. Cyclic capacity of various potential aqueous amine based solvents at 10 kPa CO2 partial pressure was determined by performing CO2 absorption at 30 ∘C, regeneration at 90oC and at 1 atmosphere. 1,7-Diaminoheptane and 1,6-Hexanediamine, N,N’-dimethyl was found to be having high cyclic loading of 0.81 and 0.85 moles CO2/moles amine respectively. Aqueous solution of 1,6-Hexanediamine, N,N’-dimethyl of 0.5 and 2.55 Mole/L concentration was selected for solubility study of CO2 at different partial pressure ranging from 1 up to 40 kPa, 30 ∘C and at 1 atmosphere. The solubilities of CO2 in aqueous 1,6-Hexanediamine, N,N’-dimethyl at 30oC were compared with those in aqueous solution of MEA with similar solution concentrations. The solubility of CO2 in 2.55 Mole/L 1,6-Hexanediamine, N,N’-dimethyl was found to be higher when compared to the 2.5 Mole/L MEA at lower CO2 partial pressure.
KW - Solubility
KW - VLE
KW - Absorption
KW - IR-80098
KW - Flue gas
KW - CO2
KW - Amine
U2 - 10.1016/j.egypro.2009.01.165
DO - 10.1016/j.egypro.2009.01.165
M3 - Article
VL - 1
SP - 1257
EP - 1264
JO - Energy procedia
JF - Energy procedia
SN - 1876-6102
IS - 1
ER -