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ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
Journal of Odor and Indoor Environment Vol.7 No.2 pp.113-126
DOI :

실내공간의 저농도 이산화탄소 흡착포집에 대한 등온흡착모델 연구

김기홍, 임윤희, 조영민*
경희대학교 환경응용과학과 및 환경연구센터

Adsorption Isotherm of Low Level Carbon Dioxide in Indoor Air

Young-Min Jo*, Ki-Hong Kim, Yun-Hee Lim
Department of Applied Environmental Science, Center for Environment Studies, Kyunghee University

Abstract

In order to capture the indoor CO2 gas from public indoor spaces, a commercial zeolite(4A) was modifiedwith alkali metals useful for adsorption. The prepared sorbents showed somewhat improved adsorptioncapacity. A few isotherm models were reviewed to characterize the adsorption mechanism of test sorbents.Sips model was found the most appropriate for low level indoor CO2 adsorption, but revealed a significanterror in low pressure regimes and required numerical analysis for quantitative evaluation. Thus, aparameter(qm) in the equation was empirically recorrelated with a operation temperature. As a result, thefinal model equation including a simple linear function presented less errors for evaluation of the potentialcapacity of adsorption.

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