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LCA Case Studies
An Accumulative Model for the Comparative Life Cycle Assessment Case Study: Iron and Steel Process
Guiqi Li; Zuoren Nie; Hemin Zhou; Xianghua Di; Yexiang Liu; Tieyong Zuo
Corresponding author:: Zuoren Nie, The key laboratory of advanced functional materials of the education ministry; School of Material Science and Engineering, Beijing Polytechnic University, Beijing, 100022, China; e-mail: zrnie@bjpu.edu.cn
DOI: http://dx.doi.org/10.1065/lca2002.02.077
--- Life cycle assessment is a powerful tool in the evaluation
of the environmental performance. However, there is no
generally accepted methodology. To develop a practical method,
an accumulative model for the comparative life cycle assessment
is established and applied in the two typical iron and steel
processes, the DRI/EF process and the BF/BOF process. The results
indicate that the method could quantitatively compare the
alternatives. When the DRI/EF process is compared with the
BF/BOF process, it is shown that the IREI (integrated relative
environmental index) is 60.22% for the production of iron and
52.4% for the production of steel, respectively. The environmental
performance of the DRI/EF process is superior to that of
the BF/BOF process. | | Keywords: accumulative model; BOF/BF process; DRI/EF process; environmental equivalent coefficient (EEC); environmental factor; integrated relative environmental index (IREI); life cycle assessment (LCA); weighting factor |
7 LCA (4) 225-229 (2002)
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