| Texto completo | |
| Autor(es): |
Pinto, Ariane S. S. M.
;
Elias, Andrew M. F.
;
Furlan, Felipe F. C.
;
Ribeiro, Marcelo P. A. S.
;
Giordano, Roberto C.
;
Farinas, Cristiane S.
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF CLEANER PRODUCTION; v. 345, p. 10-pg., 2022-03-04. |
| Resumo | |
Production of 2G ethanol in biorefineries can contribute to a low-carbon bioeconomy, but bioreactor low yields remain a limitation. In this work, technical-economic-environmental biorefinery assessment was performed, with integration of biomass washing and soybean protein addition to mitigate the negative effects of inhibitors on biochemical reactions. It was possible to reduce the overall CO2 emissions of integrated first (1G) and second generation (2G) sugarcane biorefineries, with up to 15% lower global warming potential (GWP10), enabling high commercialization of decarbonization credits (CBios) and significantly increasing net present value (NPV). The most profitable scenario was using biomass washing (NPV similar to US$ 1.50E+8), but most life cycle categories (except GWP100 and photochemical oxidation) presented greater environmental impacts (2-18%) than conventional 1G2G. The lowest life cycle scores were obtained with protein addition, while the combined mitigation strategies resulted in economic feasibility (due to high CBios prices and low soybean protein costs).Therefore, decisions to favor the bioeconomy should not be based exclusively on the carbon footprint indicator. (AU) | |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |
| Processo FAPESP: | 17/21173-1 - Mitigação dos inibidores gerados no pré-tratamento da biomassa vegetal: impacto técnico-econômico-ambiental de diferentes rotas de processo na biorrefinaria |
| Beneficiário: | Ariane Silveira Sbrice Pinto |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 20/15450-5 - Engenharia de sistemas em bioprocessos aplicada à produção de biofertilizantes: da biorefinaria integrada aos microrganismos |
| Beneficiário: | Andrew Milli Elias |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |