A new pressure drop solubility gas apparatus was developed to determine the solubility of carbon dioxide in canola oil, a triglyceride consisting primarily of oleic, linoleic, and alpha linoleic acid radicals. Solubility of CO2 in triglycerides was determined at different temperatures (283.2 303.2 K) and pressures (600 2450 kPa). It was found that the solubility of CO2 in triglycerides is higher than that of pure water because triglycerides lack strong hydrogen bond networks that exist in liquid water at the ambient conditions. The experimental solubility was correlated using Krichevsky Kasarnovsky (KK), Mather-Jou (MJ), and Carvalho-Coutinho (CC) correlations. We find that KK and MJ equations can predict the solubility with higher accuracy. The enthalpy and entropy of absorption of CO2 were calculated using the van t Hoff plot and were found to be 7.165 kJ.mol 1, and 28.791 J.mol 1.K 1, respectively.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
H2O
water
3
C14H30
tetradecane
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.