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Mixed Amine Grafted to Silica for CO2

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Theories and Applications of Chem. Eng., 2014, Vol. 20, No. 2 2223

화학공학의 이론과 응용 제20권 제2호 2014년

Mixed Amine Grafted to Silica for CO2 Capture 줄리마르, 서휘민1, 박용기1, 고영수*

공주대학교; 1한국화학연구원

([email protected]*)

(3-Aminopropyl)trimethoxysilane (1NS) and N-(3-Trimethoxysilylpropyl)diethylenetriamine (3NS) are commonly used amino organosilanes in amine-grafted silica adsorbents for CO2 capture. In this study, 1NS and 3NS was mixed at varying ratio to investigate potential enhancement of the desirable qualities of the individual amines. Thermogravimetric analysis (TGA) and in-situ IR were used to characterize the adsorbents. The mixed amine showed enhanced grafting efficiency and CO2 capture capacity than the corresponding individual amines.

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