The solubility of carbon dioxide in a LiF Li2CO3 molten salt system was determined using a pressure differential method. With increasing holding temperature, the solubility of CO2 in LiF Li2CO3 melts decreases rapidly. The influence of the alkali metal fluoride of XF(X = K, Na) content from 5% to 25% on the CO2 solubility was considered. The CO2 solubility in LiF Li2CO3 XF melts decreased with increasing temperature and concentration of XF. The calculated thermodynamic data for CO2 dissolved in these melts revealed that the reaction between CO2 and a carbonate ion was exothermic. At 630 deg C, KF decreased the CO2 solubility more effectively than NaF. When the mole fraction of LiF was 50% in LiF Li2CO3, the CO2 solubility reached a maximum of 6.8 * 10 4 (molCO2/molmelt) at 640 deg C.
Compounds
#
Formula
Name
1
FLi
lithium fluoride
2
CLi2O3
lithium carbonate
3
CO2
carbon 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.