Comparison of the kinetic of carbon dioxide adsorption in materials containing calcium,zirconium,and tin  

作　　者：Hanie Abbaslou Bahador Abolpour Hossein Yarahmadi Rahim Shamsoddini 

机构地区：[1]Department of Environment and Civil Engineering,Sirjan University of Technology,Sirjan 7813733385,Iran [2]Department of Chemical Engineering,Sirjan University of Technology,Sirjan,Iran [3]Department of Mechanical Engineering,Sirjan University of Technology,Sirjan,Iran

出　　处：《Chinese Journal of Chemical Engineering》2024年第10期259-271,共13页中国化学工程学报（英文版）

摘　　要：The urgent need to mitigate climate change impacts and achieve net zero emissions has led to extensive research on carbon dioxide(CO_(2))-capture technologies.This study focuses on the kinetics of CO_(2)capture using solid adsorbents specifically through thermal gravimetric analysis(TGA).The research explores the principles behind TGA and its application in analyzing adsorbent performance and the significance of kinetics in optimizing CO_(2)-capture processes.Solid adsorbents have gained significant attention due to their potential for efficient and cost-effective CO_(2)capture.Therefore,three different types of adsorbents,namely calcium-,tin-,and zirconium-based ones(quicklime:CaO,potassium stannate:K_(2)SnO_(3),and sodium zirconate:Na_(2)ZrO_(3)),in adsorbing high-temperature carbon dioxide were investigated;their quality and performance by various factors such as price,stability,non-toxicity,and efficiency are different.The diffusion models and geometrical contraction models were the best-fitted models to explain the kinetic of these solid adsorbents for high-temperature CO_(2)sorption;it means the morphology is important for solid adsorbent performance.The minimum energy needed to start a reaction for K_(2)SnO_(3),Na_(2)ZrO_(3),and CaO,is 73.55,84.33,and 86.23 kJ·mol^(-1),respectively;with the lowest value being for potassium stannate.The high-temperature CO_(2)adsorption performance of various solid adsorbents in regard with the rate of reaction followed the order of K_(2)SnO_(3)>CaO>>Na_(2)ZrO_(3),based on experiments and kinetic studies.

关 键 词：Carbon capture Solid sorbents Alkali stannate Alkali zirconate Quick lime Kinetics 

分 类 号：X701[环境科学与工程—环境工程] TQ424[化学工程]