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http://dx.doi.org/10.12925/jkocs.2013.30.3.494

Evaluation for adsorption of low concentration of indoor $CO_2$ adsorption using zeolite and alkali metal  

Lim, Yun-Hui (Dept. of Applied Environmental Science, Kyung Hee University)
Lee, Ju-Yeol (Dept. of Applied Environmental Science, Kyung Hee University)
Cha, Yu-Joung (Technology Institute, Anytech Co., Ltd.)
Park, Byung-Hyun (Technology Institute, Anytech Co., Ltd.)
Publication Information
Journal of the Korean Applied Science and Technology / v.30, no.3, 2013 , pp. 494-503 More about this Journal
Abstract
In this study, $CO_2$ adsorbent was produced for minimizing energy loss due to ventilation within the building. For improved selectivity about low concentration of $CO_2$ in multiple-use facilities, the ball type adsorbent was modified from a commercial zeolite, alumina, alkali metals and activated carbon with mixing LiOH, binder, and $H_2O$. We measured specific surface area, pore characteristic, and crystal structure of the modified adsorbent. Effects of alkalization on the absorptive properties of the adsorbents were investigated. Continuous column tests (2,000 ppm) and batch chamber tests ($4m^3$, 5,000ppm) showed that the modified adsorbent indicated about the selectivity of $CO_2$ more than 9.7% (0.613 mmol/g) compared with ordinary adsorbents and $CO_2$ removal efficiency of 88.8% within l hour, respectively. It was estimated that the modified adsorbent was applicable to indoor environments.
Keywords
Carbon dioxide; Adsorption; Selectivity; Alkali metal; zeolite;
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Times Cited By KSCI : 2  (Citation Analysis)
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