Environmental impact assessment of end-uses of biomethane

Autor(es)

Ferreira, Samuel Fontenelle ^[1] ; Buller, Luz Selene ^[1] ; Berni, Mauro ^[2] ; Forster-Carneiro, Tania ^[1]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Sch Food Engn, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil

^[2] Univ Campinas UNICAMP, Interdisciplinary Ctr Energy Planning NIPE, Rua Cora Coralina, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CLEANER PRODUCTION; v. 230, p. 613-621, SEP 1 2019.
• Citações Web of Science: 1

Resumo

The growing global population, hunger for energy and worried about climate change, demands the development of new sources of energy. In this scenario, biomass stands out due its renewability and availability. Biogas, one type of energy that results from the anaerobic digestion of organic materials, is composed of about 60% of methane and 35% of carbon dioxide, and can be converted to biomethane, a fuel with high energy content. Biomethane can be used in ovens for cooking, light-duty vehicles for transportation and heavy-duty vehicles for work. This study compared the impacts of the use of biomethane in all of these three end-uses applying the life cycle assessment methodology. Four impact categories were evaluated: acidification, climate change, eutrophication and photochemical oxidation, when replacing one traditional fossil fuel use for those biomethane end uses. The results showed that the replacement of Diesel Oil in heavy-duty vehicles was beneficial in all impact categories, the replacement of liquefied petroleum gas in gas ovens impacted positively only climate change and the replacement of gasoline-C in light-duty vehicles was disadvantageous (except for climate change). For all the uses, the replacement of the traditional fossil fuel by biomethane for climate change impact was beneficial. The contribution analysis showed that the burning of the fuel was the most relevant process for all four impact categories. This study aims to supply data for further analysis of the full life cycle of biomethane, considering the source of biomass, which can support a whole well-to-wheel approach. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 18/14938-4 - Waste2energy: integração das tecnologias supercrítica e digestão anaeróbia através de um sistema automatizado para produção de precursores de biocombustíveis
• Beneficiário: Tânia Forster Carneiro
• Linha de fomento: Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2
• Processo FAPESP: 11/19817-1 - Biorefinaria na indústria agroalimentar: reaproveitamento de resíduos para produção de novos compostos químicos e biohidrogênio
• Beneficiário: Tânia Forster Carneiro
• Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - Jovens Pesquisadores
• Processo FAPESP: 18/05999-0 - Waste2energy: integração das tecnologias supercrítica e digestão anaeróbia para gestão de águas e resíduos alimentares
• Beneficiário: Tânia Forster Carneiro
• Linha de fomento: Auxílio à Pesquisa - Regular