Life cycle assessment of beverage cans

Citation
K. Nakajima et al., Life cycle assessment of beverage cans, J JPN METAL, 64(8), 2000, pp. 591-596
Citations number
12
Language
GIAPPONESE
art.tipo
Article
Categorie Soggetti
Metallurgy
Journal title
JOURNAL OF THE JAPAN INSTITUTE OF METALS
ISSN journal
0021-4876 → ACNP
Volume
64
Issue
8
Year of publication
2000
Pages
591 - 596
Database
ISI
SICI code
0021-4876(200008)64:8<591:LCAOBC>2.0.ZU;2-Y
Abstract
LCA (Life cycle assessment) is a tool to evaluate quantitatively the resour ce consumption, the environmental loads and impacts of a product throughout its life cycle. The purpose of the present work is to establish how to eva luate the effect of recycling of materials and how to predict the environme ntal loads of new materials by a prospective application of LCA. Beverage c ans were chosen as an evaluating object for LCA in which the recycling rate of a material of a steel or aluminum can was changed. A fictitious process for a stainless steel can was also analyzed in order to search the feasibi lity of the new material for a beverage can. In the absence of recycling, t he energy consumption and the CO2, SOx, NOx emissions for the aluminum can are much higher than those for the steel product. The recycling of material s changes the situation, because the environmental loads for the aluminum c an are reduced much higher than those for the steel can. As for the stainle ss can, it was shown that the environmental loads for the system are compar able to the conventional beverage cans when the can is decreased in thickne ss and fully recycled. In conclusion, it is emphasized that the decrease in environmental loads can be achieved by the combination of the selection of recyclable materials and the development of production technology.