Equilibrium CO2 partial pressure as a function of temperature for the absorption of CO2 of Li4SiO4

https://doi.org/10.3390/ijms20040928

“Figure 4 shows the equilibrium partial pressure of CO₂ over Li₄SiO₄ material as a function of temperature [26], and the maximum temperature of CO₂ absorption by Li₄SiO₄ material is determined by the corresponding CO₂ partial pressure. When CO₂ partial pressure is 100% at 1 atm, it can be inferred from Figure 4 that the equilibrium temperature is around 715 °C, which agrees well with the results that discussed above. The corresponding temperature of CO₂ absorption by Li₄SiO₄ material can be determined by the CO₂ partial pressure, and CO₂ absorption by Li₄SiO₄ material occurs when the temperature is lower than the equilibrium temperature, otherwise Li₄SiO₄ material is regenerated. As a result, CO₂ absorption and regeneration regions of Li₄SiO₄ material are divided by the equilibrium line.”

“Figure 4. Equilibrium CO₂ partial pressure as a function of temperature for the absorption of CO₂ of Li₄SiO₄ [26].”