Study of CO2 Capture Using Triethanolamine-modified Mesoporous Silica
Novel functionalised absorbents have been synthesized by immobilization of triethanolamine on synthetic mesoporous silica for CO2 capture. Mesoporous silica material with a uniform pore size of 20-50nm and a surface area of 200~300 m2/g was used as loader for capturing agents. The capture of carbon dioxide from simulated flue gas streams has been achieved by using triethanolamine immobilized mesoporous silica. Preliminary attempts have also been made to determine the CO2 adsorption capacities of these newly developed materials. The results revealed that maximum adsorption capacities was 28.01mg/g for immobilized triethanolamine mesoporous silica at room temperature, and the rate of desorption is 99％ at 90℃.Recycle of adsorption-desorption have many times, and the ability of capturing CO2 was stable. The results suggest that immobilized triethanolamine have a good affinity for the capture of carbon dioxide from simulated flue gas streams. The performance of these immobilized and triethanolamine-mesoporous silica solid sorbents decreased with regeneration.
CO2 capture triethanolamine mesoporous silica recycle
Zhang Hongli
Department of Chemistry and Chemical Engineering, Weinan Normal University, Weinan Shaanxi 714000, China
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
286-290
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）