Experimental and modeling investigation on CO₂ sorption kinetics over K₂CO₃-modified silica aerogels

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• 作者：Chuanwen Zhao ; ^{cwzhao@ustc.edu.cn} ; Yafei Guo ; Weiling Li ; Changsheng Bu ; Xinye Wang ; Ping Lu
• 关键词：K2CO3-modified silica aerogels ; CO2 sorption capacity ; CO2 sorption kinetics ; Operation conditions
• 刊名：Chemical Engineering Journal
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：312
• 期：Complete
• 页码：50-58
• 全文大小：1464 K
• 卷排序：312

文摘

K2CO3/SG is synthesized by the two-step sol-gel and wet impregnation method using ethanol as solvent. CO2 sorption capacity of the sorbent can reach 1.35 mmol CO2/g in simulated ultra-dilute flue gas conditions. CO2 sorption kinetics performances are well described by the modified Avrami fractional kinetics model. The effects of operation conditions on CO2 sorption kinetics performances of the sorbent are demonstrated.