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Biogas upgrading to biomethane in Brazil: Networks, technologies, and industrial pathways

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Autor(es):
Bueno, Carolina da Silveira ; da Silveira, Jose Maria Ferreira Jardim ; Moraes, Bruna de Souza ; Franco, Telma Teixeira
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: SUSTAINABLE FUTURES; v. 10, p. 12-pg., 2025-12-01.
Resumo

Waste management is a critical global challenge for sustainability, requiring solutions that integrate efficient treatment, energy generation, and value recovery. This study analyzes the evolution of the biogas sector in Brazil, focusing on the integration of waste sources and industrial plants to produce biogas and biomethane. Using a scientometric approach, we analyzed 3289 peer-reviewed articles and 248 patent documents, to map knowledge production in Brazil on biogas and biomethane, identifying research themes, collaboration patterns, and technological focus in upgrading. We then integrated field evidence, industry datasets, and technical reports to characterize installed capacity, feedstocks, and the upgrading routes currently adopted to produce biomethane. Results show that the number of biogas plants in Brazil increased from 2 in 2003 to 755 in 2021, with annual production rising from 1.09 million Nm3 in 2003 to 2.3 billion Nm3 in 2021. In 2023, annual production reached approximately 2.9 billion Nm3. biomethane is obtained by upgrading biogas, whereby major contaminants are removed and its heating value increases. Seventeen biomethane plants were identified, with seven authorized by the National Petroleum Agency (ANP) and projected capacity of 547,481 Nm3 day-1 in 2024. In Brazil, co-location of biogas plants with waste sources predominates, optimizing logistics and supporting decentralized energy solutions. Collaboration among universities, industry, utilities, and regulators can expand the use of biomethane in small and medium industries and reduce the volume of waste still disposed of in open dumpsites. (AU)

Processo FAPESP: 20/16135-6 - Paradigma emergente, fronteiras tecnológicas e o desenvolvimento industrial de energia de baixo carbono no Brasil
Beneficiário:Carolina da Silveira Bueno
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado