In this paper, the preparation of potassium carbonate modified SiO2-Al2O3 composite aerogel, carbonation characteristics K2CO3 and decarburization regeneration cycle were studied. The influence loading rate on CO2 adsorption was studied by using a fixed bed reactor, microstructure samples analyzed combining SEM BET. results show that during alkali fusion sintering Na2CO3, Si-O-Si Si-O-Al bonds ...