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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Nakaniwa, C., Graedel, T.E. Life cycle and matrix analyses for re-refined Oil in Japan. Int J LCA 7, 95–102 (2002). https://doi.org/10.1007/BF02978853
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DOI: https://doi.org/10.1007/BF02978853