Characteristics of CO2 Circulating Absorption by Sodium Humate and Potassium Carbonate

Using sodium humate as carrier and potassium carbonate as precursor as a new absorbent for cyclic absorption of CO
₂
, the absorption property and theory of CO
₂
were explored. The effects of potassium carbonate loading rate, absorption temperature, absorption time, absorbant quality and cycle times on the absorption quantity of CO
₂
were studied. The surface morphology characteristics of the absorbents were observed by SEM, and the optimum operating conditions for the absorption of CO
₂
were studied and analyzed. The experimental results show that the addition of sodium humate significantly improves the absorption performance of potassium carbonate to CO
₂
. The optimum loading rate is 50%, the most appropriate reaction temperature is 60, and the best absorption time is 15 minutes.