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http://dx.doi.org/10.12925/jkocs.2010.27.3.15

Decomposition Characteristics of Carbon Dioxide Using Magnetite and Inorganic Sludge  

Park, Joon-Seok (Dept. of Env. Eng., Kangwon National University)
Jeon, Jea-Yeoul (Ssangyong Cement Industrial Co., Ltd.)
Park, Young-Koo (Dept. of Env. Eng., Kangwon National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.27, no.3, 2010 , pp. 344-352 More about this Journal
Abstract
Magnetite and inorganic sludge were mainly composed of $Fe_2O_4$ and $Fe_2O_3$, respectively. Initial specific surface areas of magnetite and inorganic sludge were 130 $m^2$/g and 31.7 $m^2$/g. $CO_2$ decomposition rate for inorganic sludge was increased with temperature. Maximum $CO_2$ decomposition rates were shown 89% for magnetite at $350^{\circ}C$ and 84% for inorganic sludge at $500^{\circ}C$. Specific surface area for magnetite was not varied significantly after $CO_2$ decomposition. However, specific surface area for inorganic sludge was greatly decreased from initial 130 $m^2$/g to approximately 50~60 $m^2$/g after reaction. Therefore, it was estimated that magnetite could be used for $CO_2$decomposition for a long time and inorganic sludge should be wasted after $CO_2$ decomposition reaction.
Keywords
magnetite; inorganic sludge; carbon dioxide; decomposition;
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Times Cited By KSCI : 5  (Citation Analysis)
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