Solubility of CO2 in molten Li2Co3-LiCl
2021
Solubility of CO2 in molten Li2CO3-LiCl was measured by using a
pressure differential method and the enthalpy change of the solution was
calculated on that basis. The relationships between the solubility and the
enthalpy change, and the temperature and the composition of the melts were
discussed. The results showed that when the temperature was 873-923K and the
Li2CO3content was 10-50 mol%, the solubility of CO2 increased with decreasing
temperature and/or increasing Li2CO3 content.The maximum solubility was 3.965
× 10−7gCO2/gmelt at 873Kwhen the content of Li2CO3 was 50 mol%. The solution
of CO2was exothermic. With increasing temperature and Li2CO3content,more
enthalpy was needed for CO2 solution.
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