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KMID : 1024520100190121355
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Journal of the Environmental Sciences
2010 Volume.19 No. 12 p.1355 ~ p.1359
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Research for Pyrolysis of Metal Caps
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Hwang Jae-Young
Jin Dal-Saem
Seo Moo-Lyong
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Abstract
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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℃ 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.
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KEYWORD
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Pyrolysis, Alumminum, Metal cap
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