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Anaerobic co-digestion of residues in 1G2G sugarcane biorefineries for enhanced electricity and biomethane production

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Autor(es):
Volpi, Maria Paula C. ; Fuess, Lucas T. ; Moraes, Bruna S.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: Bioresource Technology; v. 330, p. 10-pg., 2021-03-26.
Resumo

The energy potential of residue-derived biogas via electricity and biomethane production was assessed in an integrated 1G2G sugarcane biorefinery concept. The mono-digestion of 1G-vinasse (1G-VN) was compared with different co-digestion systems, namely, 1G-VN + filter cake (FC) + deacetylation liquor (DL) in the season and FC + DL in the off-season. Gross energy output values and the resulting sugarcane use efficiency were also assessed in different biorefinery schemes. Electricity production from 1G to VN (5.0 MW) could be increased by over 400% through its co-digestion with FC and DL (22.3 MW). Alternatively, biomethane could fully supply the diesel-powered fleet (1.8 ? 106 Nm3 month-1) of a sugarcane plant processing 10 million tons of sugarcane per harvest, and the surplus biogas could flexibly provide 36 MW of extra electricity. Biomethane could enhance the energy output of 1G2G sugarcane biorefineries by 15%. However, 2G processes still require marked improvements to maximize energy production from sugarcane. (AU)

Processo FAPESP: 16/16438-3 - Produção de biogás em biorrefinarias de cana-de-açúcar integradas de 1ª e 2ª geração: aspectos fundamentais e operacionais do processo
Beneficiário:Bruna de Souza Moraes
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 18/09893-1 - Produção de biogás integrada ao conceito de biorrefinaria para biomassa lignocelulósica: aspectos operacionais e uso de nanopartículas
Beneficiário:Maria Paula Cardeal Volpi
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 15/50612-8 - An integrated approach to explore a novel paradigm for biofuel production from lignocellulosic feedstocks
Beneficiário:Telma Teixeira Franco
Modalidade de apoio: Auxílio à Pesquisa - Temático