Cyclic CO2 absorption/desorption property of Li3NaSiO4 under the partial pressure of CO2 for practical applications

Abstract

The temperature for realizing the cyclic CO₂ absorption/desorption property of Li₃NaSiO₄ by repetition of switching a CO₂/N₂ gas mixture and N₂ with a partial pressure of CO₂, P(CO₂), of 0.1 bar was optimized using the pseudo van't Hoff plot of LiNaCO₃ + Li₂SiO₃ ↔ Li₃NaSiO₄ + CO₂ prepared by thermogravimetry at various P(CO₂) values.