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Adsorption Characteristics of Oyster Shell using Activation Process  

Lee, Seung-Bum (Department of Chemical Engineering, Dankook University)
Hong, In-Kwon (Department of Chemical Engineering, Dankook University)
Publication Information
Applied Chemistry for Engineering / v.19, no.4, 2008 , pp. 439-444 More about this Journal
Abstract
The oyster shell adsorbents were prepared by steam activation method to evaluate their adsorption characteristics. Washed and pulverized waste oyster shells were prepared by steam activated process in converter at the temperature range of about $700{\sim}800^{\circ}C$ after carbonized at the range of $600{\sim}1000^{\circ}C$. The shell carbonized at $1000^{\circ}C$ showed the best performance among those of other temperature ranges. Also, comparison between gas and liquid phase adsorption was performed to verify adsorbent possibility of waste shell. In case of gas phase, the adsorbent showed lower performance than existing commercial adsorbents. On the other hand, the liquid phase, they showed similar adsorption performance to commercial adsorbents when benzene was used.
Keywords
oyster shell adsorbent; carbonization; activation; adsorption characteristics;
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