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http://dx.doi.org/10.5322/JES.2010.19.12.1355

Research for Pyrolysis of Metal Caps  

Hwang, Jae-young (Department of Chemistry Gyeongsang National University)
Jin, Dal-saem (Department of Chemistry Gyeongsang National University)
Seo, Moo-Lyong (Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University)
Publication Information
Journal of Environmental Science International / v.19, no.12, 2010 , pp. 1355-1359 More about this Journal
Abstract
The application of metal caps has been continuously increased as real life are extended. Metal caps is usually made of aluminum and polyethylene(PE) as packing. Since metal caps contain 75% aluminum on a weight basis, metal caps may be a valuable source when these were properly recovered. The recovery methods of metal caps have mechanical peeling and incineration. However these are either hard to apply in some case or environmentally unacceptable. So in this investigation, recovery method of aluminum from metal caps was investigated using pyrolysis. The result shows that pyrolysis temperature and pyrolysis time was $450^{\circ}C$ and 120min. respectively. Also 100% of aluminum was recovered from metal caps. Heat content of recovered oil was high enough to use as a fuel representing 7,425.0, 7,793.1, 7,583.2, 7,726.2(cal/g). Heavy metal contens in the oil were under regulatory limit indicating.
Keywords
Pyrolysis; Alumminum; Metal cap;
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