Utilize este identificador para referenciar este registo: http://hdl.handle.net/10362/21953
Título: Carbon Footprint Analysis for the Waste Oil Management System in Portugal
Autor: Pires, Ana
Martinho, Maria da Graça Madeira
Palavras-chave: Oil
Waste
Waste oils
re-refining
expanded clay
electric energy
carbon footprint
waste hierarchy principle
Data: 2012
Resumo: Aims: The study analyzes the carbon footprint of the waste oil management system operating in Portugal to ensure the sustainable operation in the future. The analysis was carried out in 2011for the system that is composed of a treatment procedure collecting the treated oil for re-refining, followed by the production of expanded clay and recycling for electricity production. Methodology: Carbon footprint analysis was conducted by using the Umberto software 5.5 based on the concepts of life cycle assessment with respect to international standards (ISO). Within this context, the substances considered for such carbon footprint analysis are directly relevant to Intergovernmental Panel on Climate Change (IPCC, 2007). Results: The results showed that managing waste oils may contribute to the reduction of carbon footprint due to the avoided emissions of greenhouse gas through the reuse of treated waste oils. The carbon dioxide equivalent emissions from collection and treatment of waste oils would not outweigh such benefit earned from the substitution of virgin lubricant oil even though the use of treated waste oils for producing expanded clay may end up some more carbon dioxide emissions. Conclusion: The carbon footprint analysis in this study has shown the potential for improvements in the waste oil management system in Portugal. The most significant improvement that could be made is the increase of using treated waste oils for the expanded clay production. However, such a strategy would not be consistent with the waste hierarchy principle which dominates the current decision making in managing waste nationally.
Descrição: The authors are grateful for the support they received from SOGILUB.
Peer review: yes
URI: http://hdl.handle.net/10362/21953
Aparece nas colecções:Home collection (FCT)

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