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.