Life cycle and matrix analyses for re-refined Oil in Japan |
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Authors: | Chie Nakaniwa Thomas E Graedel |
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Institution: | (1) Center for Industrial Ecology, School of Forestry and Environmental Studies, Yale University, 06511 New Haven, CT, USA;(2) Now at Japan Environmental Management Association for Industry, 1-17-6 Ueno, 110-8535 Taito-ku, Tokyo, Japan |
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Abstract: | Unstable market systems and consumer preferences for virgin oil have inhibited the development of waste oil re-refining in
Japan. In this papery comparative life cycle inventories were developed for re-refining waste oil and for the no-refining
case in which the waste oil is incinerated and needs are supplied with virgin oil. Total energy, CO2, NOx, and SO2 emissions were included during the re-refining and consumption (incineration) stages; all are lower in the case of re-refined
fuel use. In addition, by using a streamlined LCA matrix, we demonstrate that re-refining waste oil can reduce environmental
impacts compared with the case in which virgin oil is chosen. |
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Keywords: | Japan LCA LCI life cycle inventory life-cycle assessment oil recycling refined oil streamlined LCA waste oil |
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