Solubility and Spectral Studies for SO2 in Binary System of Tri-ethylene Glycol + Dimethyl Sulfoxide at T = (298.15, 303.15, and 308.15) K and p = 123.15 kPa
In this work, isothermal gas-liquid equilibrium (GLE) data were measured for the mixture SO2 + N2 in the system of tri-ethylene glycol (TEG) + dimethyl Sulfoxide (DMSO) at T = (298.15, 303.15, and 308.15) K and p = 123.15 kPa. Based on the GLE data, Henry s law constants (HLCs) were obtained by fitting the linear slope of GLE data. The results indicated that the solubility of dilute SO2 in the system of TEG + DMSO increased with the increasing DMSO concentrations, and HLCs decreased with the increasing temperatures. The regeneration experimental results showed that the absorption of SO2 in the binary system was reversible, and the solvent could be reused without significant loss of absorption capacity. Additionally, FTIR, UV-Vis, and 1H-NMR spectral results indicated that intermolecular hydrogen bonding association among TEG, DMSO, and SO2 molecules was formed.
Compounds
#
Formula
Name
1
C6H14O4
triethylene glycol
2
C2H6OS
dimethyl sulfoxide
3
O2S
sulfur dioxide
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.